Whatsminer M50 – Fixing 251 Error: Power Input Under-Voltage Protection 1

Whatsminer M50 – 251 Error: Power Input Under-Voltage Protection 1

The Whatsminer M50 is one of the most reliable miners if you manage its heat properly. With a hashrate of around 110Th/s, it performs well, but after running for over 16 months, many units face issues due to prolonged exposure to high temperatures. Excess heat can slow down the hashrate or even damage the hashboard.

Repairing a damaged hashboard on the M50 usually costs between $150 – $300, and most repairs involve replacing faulty chips. To prevent issues, it’s important to keep the heatsinks clean, remove dust from the miner, and regularly maintain the unit. If you’re confident working with hashboards, reapplying thermal paste on the chips can also help reduce heat and extend the miner’s lifespan.

Whatsminer M50 250 error

Today’s focus is on the Whatsminer M50 251 error: Power Input Under-Voltage Protection 1 (code: 0x40000). Compared to hashboard failures, this issue is easier to repair, but the cost can still be similar since it often requires replacing the PSU.

As shown in the screenshot below, the Whatsminer was still hashing with the 251 error, but not at full hashrate.

The API log indicated that most chips were working fine, and there were no hashboard errors.

API LOG:

1970-01-01 08:00:28|4|206|Power input voltage error, vin: 0.00/0.00/0.00V
2025-09-23 21:44:09|4|251|Power input under-voltage protection 1. code: 0x40000
slot0:
(
   slot: 0
   freqs_avg: 588
   temp: 67.88
   chip_verify_diff: 31
   work_count: 73446
   nonce_count: 13463
   nonce_before: 60
   nonce_err_count: 1
   nonce_err_crc_count: 0
   nonce_err_repeat_count: 2
   nonce_per_sec: 44
   nonce_repeat_%: 0.014856
   work_interval: 5000
   work_actual_interval: 4126.35
   Work Delay seconds: 0.000000
   Work Delay Hash Loss%: 0.000000
   C0  : freq:606  vol:330 temp:68  nonce:109      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C1  : freq:587  vol:330 temp:63  nonce:133      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C2  : freq:592  vol:328 temp:71  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C3  : freq:593  vol:332 temp:66  nonce:141      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C4  : freq:593  vol:335 temp:61  nonce:118      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C5  : freq:594  vol:335 temp:59  nonce:155      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C6  : freq:582  vol:333 temp:58  nonce:150      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C7  : freq:616  vol:331 temp:63  nonce:102      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C8  : freq:600  vol:333 temp:62  nonce:136      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C9  : freq:607  vol:327 temp:64  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C10 : freq:593  vol:332 temp:69  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C11 : freq:569  vol:333 temp:61  nonce:131      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C12 : freq:568  vol:330 temp:63  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C13 : freq:614  vol:328 temp:68  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.0%/  0.0%
   C14 : freq:596  vol:328 temp:64  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C15 : freq:590  vol:332 temp:67  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.2%/  0.0%
   C16 : freq:605  vol:335 temp:69  nonce:99       error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C17 : freq:577  vol:335 temp:66  nonce:119      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C18 : freq:590  vol:327 temp:69  nonce:108      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C19 : freq:581  vol:326 temp:69  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C20 : freq:605  vol:325 temp:70  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C21 : freq:600  vol:327 temp:71  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C22 : freq:575  vol:331 temp:71  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C23 : freq:595  vol:329 temp:70  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C24 : freq:597  vol:328 temp:71  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C25 : freq:558  vol:329 temp:73  nonce:128      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.8%/  0.0%
   C26 : freq:608  vol:327 temp:73  nonce:140      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C27 : freq:593  vol:320 temp:74  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.8%/  0.0%
   C28 : freq:585  vol:323 temp:75  nonce:106      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C29 : freq:596  vol:324 temp:74  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.8%/  0.0%
   C30 : freq:604  vol:317 temp:78  nonce:134      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C31 : freq:587  vol:318 temp:78  nonce:123      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C32 : freq:580  vol:321 temp:75  nonce:118      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C33 : freq:604  vol:326 temp:78  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C34 : freq:552  vol:330 temp:77  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C35 : freq:605  vol:330 temp:78  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C36 : freq:584  vol:322 temp:76  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C37 : freq:590  vol:322 temp:78  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C38 : freq:596  vol:320 temp:79  nonce:93       error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C39 : freq:600  vol:322 temp:80  nonce:121      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C40 : freq:567  vol:326 temp:77  nonce:111      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C41 : freq:580  vol:326 temp:80  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C42 : freq:579  vol:319 temp:81  nonce:121      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C43 : freq:574  vol:321 temp:79  nonce:146      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C44 : freq:599  vol:318 temp:80  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C45 : freq:593  vol:320 temp:82  nonce:119      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C46 : freq:596  vol:322 temp:86  nonce:142      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C47 : freq:578  vol:325 temp:80  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C48 : freq:574  vol:320 temp:80  nonce:131      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C49 : freq:561  vol:320 temp:82  nonce:118      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C50 : freq:591  vol:319 temp:82  nonce:97       error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C51 : freq:549  vol:328 temp:83  nonce:90       error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C52 : freq:602  vol:329 temp:85  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C53 : freq:601  vol:331 temp:81  nonce:132      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C54 : freq:625  vol:323 temp:87  nonce:140      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.8%/  0.0%
   C55 : freq:568  vol:320 temp:86  nonce:109      error:0    crc:0    x:0   / 0 repeat:0    pct: 94.2%/  0.0%
   C56 : freq:555  vol:319 temp:84  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C57 : freq:567  vol:313 temp:82  nonce:139      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C58 : freq:576  vol:319 temp:84  nonce:117      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C59 : freq:601  vol:322 temp:85  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.8%/  0.0%
   C60 : freq:575  vol:319 temp:80  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C61 : freq:596  vol:317 temp:86  nonce:131      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C62 : freq:588  vol:317 temp:84  nonce:116      error:1    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C63 : freq:550  vol:319 temp:81  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.4%/  0.0%
   C64 : freq:598  vol:321 temp:82  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C65 : freq:590  vol:322 temp:81  nonce:109      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C66 : freq:559  vol:324 temp:80  nonce:136      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.8%/  0.0%
   C67 : freq:597  vol:324 temp:82  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C68 : freq:590  vol:322 temp:81  nonce:132      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C69 : freq:578  vol:317 temp:78  nonce:121      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C70 : freq:593  vol:320 temp:85  nonce:142      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C71 : freq:569  vol:322 temp:78  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C72 : freq:607  vol:319 temp:77  nonce:111      error:0    crc:0    x:0   / 0 repeat:0    pct:100.0%/  0.0%
   C73 : freq:574  vol:319 temp:78  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C74 : freq:578  vol:319 temp:78  nonce:123      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C75 : freq:577  vol:319 temp:77  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.4%/  0.0%
   C76 : freq:586  vol:322 temp:79  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C77 : freq:609  vol:322 temp:80  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C78 : freq:594  vol:330 temp:76  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C79 : freq:593  vol:329 temp:79  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C80 : freq:571  vol:329 temp:76  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C81 : freq:582  vol:319 temp:75  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C82 : freq:601  vol:323 temp:77  nonce:121      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.8%/  0.0%
   C83 : freq:599  vol:324 temp:75  nonce:109      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C84 : freq:603  vol:323 temp:75  nonce:117      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C85 : freq:577  vol:323 temp:75  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C86 : freq:581  vol:323 temp:73  nonce:135      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C87 : freq:589  vol:328 temp:72  nonce:107      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C88 : freq:553  vol:333 temp:72  nonce:101      error:0    crc:0    x:0   / 0 repeat:0    pct: 88.0%/  0.0%
   C89 : freq:622  vol:330 temp:74  nonce:113      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.0%/  0.0%
   C90 : freq:610  vol:326 temp:69  nonce:101      error:0    crc:0    x:0   / 0 repeat:1    pct: 98.9%/  0.0%
   C91 : freq:593  vol:327 temp:71  nonce:130      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C92 : freq:576  vol:328 temp:69  nonce:130      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C93 : freq:588  vol:326 temp:68  nonce:106      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.3%/  0.0%
   C94 : freq:574  vol:328 temp:68  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C95 : freq:617  vol:330 temp:68  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C96 : freq:623  vol:337 temp:66  nonce:142      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C97 : freq:547  vol:340 temp:67  nonce:105      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.2%/  0.0%
   C98 : freq:595  vol:338 temp:66  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C99 : freq:585  vol:333 temp:64  nonce:123      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C100: freq:571  vol:333 temp:64  nonce:101      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C101: freq:602  vol:334 temp:64  nonce:117      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C102: freq:598  vol:337 temp:61  nonce:117      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.3%/  0.0%
   C103: freq:547  vol:339 temp:61  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C104: freq:628  vol:333 temp:62  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C105: freq:594  vol:340 temp:61  nonce:117      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C106: freq:568  vol:340 temp:59  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.6%/  0.0%
   C107: freq:599  vol:341 temp:66  nonce:132      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.3%/  0.0%
   C108: freq:581  vol:335 temp:57  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C109: freq:584  vol:337 temp:57  nonce:122      error:0    crc:0    x:0   / 1 repeat:0    pct: 98.6%/  0.0%
   C110: freq:601  vol:336 temp:63  nonce:138      error:0    crc:0    x:0   / 1 repeat:0    pct: 97.8%/  0.0%
)
slot1:
(
   slot: 1
   freqs_avg: 533
   temp: 64.88
   chip_verify_diff: 15
   work_count: 72022
   nonce_count: 18643
   nonce_before: 53
   nonce_err_count: 0
   nonce_err_crc_count: 0
   nonce_err_repeat_count: 10
   nonce_per_sec: 61
   nonce_repeat_%: 0.053639
   work_interval: 5000
   work_actual_interval: 4207.94
   Work Delay seconds: 0.000000
   Work Delay Hash Loss%: 0.000000
   C0  : freq:556  vol:334 temp:54  nonce:179      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C1  : freq:525  vol:333 temp:53  nonce:165      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C2  : freq:539  vol:333 temp:60  nonce:182      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.8%/  0.0%
   C3  : freq:540  vol:334 temp:56  nonce:182      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.0%/  0.0%
   C4  : freq:526  vol:339 temp:54  nonce:165      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C5  : freq:538  vol:337 temp:55  nonce:158      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C6  : freq:535  vol:333 temp:56  nonce:155      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C7  : freq:542  vol:332 temp:56  nonce:186      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.2%/  0.0%
   C8  : freq:536  vol:331 temp:56  nonce:157      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.8%/  0.0%
   C9  : freq:546  vol:333 temp:57  nonce:147      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C10 : freq:544  vol:337 temp:57  nonce:191      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C11 : freq:530  vol:336 temp:56  nonce:168      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C12 : freq:528  vol:334 temp:58  nonce:160      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C13 : freq:550  vol:333 temp:59  nonce:179      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C14 : freq:537  vol:333 temp:60  nonce:179      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C15 : freq:537  vol:334 temp:61  nonce:147      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C16 : freq:533  vol:337 temp:61  nonce:158      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C17 : freq:548  vol:334 temp:62  nonce:192      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C18 : freq:525  vol:335 temp:63  nonce:154      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C19 : freq:532  vol:331 temp:63  nonce:165      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C20 : freq:543  vol:329 temp:63  nonce:182      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C21 : freq:526  vol:330 temp:65  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C22 : freq:537  vol:333 temp:65  nonce:178      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C23 : freq:552  vol:331 temp:65  nonce:199      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C24 : freq:523  vol:331 temp:67  nonce:177      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C25 : freq:554  vol:329 temp:67  nonce:181      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C26 : freq:524  vol:330 temp:65  nonce:159      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C27 : freq:515  vol:326 temp:68  nonce:142      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C28 : freq:549  vol:331 temp:69  nonce:173      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C29 : freq:548  vol:328 temp:68  nonce:197      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C30 : freq:550  vol:324 temp:70  nonce:194      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C31 : freq:553  vol:324 temp:70  nonce:154      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C32 : freq:514  vol:327 temp:68  nonce:145      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C33 : freq:511  vol:328 temp:70  nonce:140      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.5%/  0.0%
   C34 : freq:552  vol:330 temp:72  nonce:208      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C35 : freq:541  vol:332 temp:71  nonce:163      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C36 : freq:530  vol:327 temp:73  nonce:167      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.8%/  0.0%
   C37 : freq:536  vol:327 temp:75  nonce:174      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C38 : freq:525  vol:327 temp:71  nonce:148      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.8%/  0.0%
   C39 : freq:531  vol:322 temp:71  nonce:145      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C40 : freq:503  vol:325 temp:78  nonce:137      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C41 : freq:566  vol:325 temp:75  nonce:171      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C42 : freq:541  vol:330 temp:75  nonce:148      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.8%/  0.0%
   C43 : freq:521  vol:332 temp:76  nonce:152      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C44 : freq:519  vol:331 temp:73  nonce:164      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C45 : freq:541  vol:322 temp:74  nonce:189      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C46 : freq:536  vol:326 temp:76  nonce:159      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C47 : freq:530  vol:328 temp:74  nonce:175      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C48 : freq:516  vol:326 temp:76  nonce:155      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C49 : freq:555  vol:326 temp:76  nonce:193      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C50 : freq:521  vol:326 temp:74  nonce:181      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C51 : freq:527  vol:322 temp:78  nonce:150      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C52 : freq:546  vol:325 temp:80  nonce:164      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.4%/  0.0%
   C53 : freq:540  vol:327 temp:76  nonce:168      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C54 : freq:568  vol:321 temp:84  nonce:194      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C55 : freq:527  vol:318 temp:82  nonce:198      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.4%/  0.0%
   C56 : freq:485  vol:318 temp:79  nonce:129      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.7%/  0.0%
   C57 : freq:497  vol:319 temp:84  nonce:154      error:0    crc:0    x:0   / 0 repeat:1    pct: 98.7%/  0.0%
   C58 : freq:512  vol:325 temp:81  nonce:152      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.2%/  0.0%
   C59 : freq:559  vol:327 temp:86  nonce:182      error:0    crc:0    x:0   / 0 repeat:1    pct: 99.2%/  0.0%
   C60 : freq:520  vol:326 temp:81  nonce:164      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C61 : freq:526  vol:326 temp:76  nonce:174      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C62 : freq:536  vol:326 temp:78  nonce:193      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C63 : freq:517  vol:324 temp:77  nonce:171      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C64 : freq:509  vol:327 temp:78  nonce:150      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C65 : freq:556  vol:327 temp:83  nonce:195      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C66 : freq:554  vol:325 temp:86  nonce:180      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C67 : freq:507  vol:327 temp:75  nonce:160      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C68 : freq:537  vol:326 temp:75  nonce:172      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C69 : freq:521  vol:322 temp:76  nonce:164      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C70 : freq:550  vol:326 temp:76  nonce:189      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C71 : freq:515  vol:328 temp:77  nonce:155      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C72 : freq:544  vol:323 temp:79  nonce:175      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C73 : freq:536  vol:323 temp:77  nonce:157      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C74 : freq:524  vol:325 temp:74  nonce:173      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C75 : freq:551  vol:322 temp:74  nonce:184      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C76 : freq:526  vol:327 temp:72  nonce:165      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C77 : freq:526  vol:328 temp:78  nonce:171      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.8%/  0.0%
   C78 : freq:543  vol:322 temp:71  nonce:190      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C79 : freq:528  vol:324 temp:71  nonce:159      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C80 : freq:542  vol:322 temp:73  nonce:161      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C81 : freq:542  vol:322 temp:67  nonce:180      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C82 : freq:556  vol:325 temp:69  nonce:190      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C83 : freq:514  vol:328 temp:69  nonce:133      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C84 : freq:526  vol:331 temp:69  nonce:151      error:0    crc:0    x:0   / 0 repeat:0    pct: 93.8%/  0.0%
   C85 : freq:522  vol:332 temp:68  nonce:181      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C86 : freq:550  vol:330 temp:68  nonce:164      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C87 : freq:532  vol:326 temp:66  nonce:177      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C88 : freq:522  vol:330 temp:67  nonce:160      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C89 : freq:535  vol:330 temp:69  nonce:173      error:0    crc:0    x:0   / 0 repeat:1    pct: 98.4%/  0.0%
   C90 : freq:548  vol:326 temp:67  nonce:176      error:0    crc:0    x:0   / 0 repeat:1    pct: 97.1%/  0.0%
   C91 : freq:511  vol:326 temp:65  nonce:156      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C92 : freq:526  vol:325 temp:64  nonce:159      error:0    crc:0    x:0   / 0 repeat:1    pct: 98.7%/  0.0%
   C93 : freq:530  vol:328 temp:61  nonce:170      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.0%/  0.0%
   C94 : freq:516  vol:329 temp:63  nonce:178      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C95 : freq:550  vol:328 temp:67  nonce:189      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C96 : freq:530  vol:329 temp:63  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C97 : freq:535  vol:329 temp:61  nonce:145      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C98 : freq:522  vol:326 temp:60  nonce:156      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.0%/  0.0%
   C99 : freq:525  vol:327 temp:58  nonce:161      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C100: freq:524  vol:330 temp:59  nonce:173      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C101: freq:543  vol:330 temp:62  nonce:168      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C102: freq:562  vol:333 temp:61  nonce:183      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C103: freq:535  vol:335 temp:58  nonce:140      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C104: freq:508  vol:337 temp:55  nonce:161      error:0    crc:0    x:0   / 0 repeat:0    pct: 94.9%/  0.0%
   C105: freq:512  vol:334 temp:56  nonce:154      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C106: freq:548  vol:336 temp:56  nonce:184      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C107: freq:538  vol:337 temp:57  nonce:164      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C108: freq:540  vol:330 temp:55  nonce:183      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.4%/  0.0%
   C109: freq:534  vol:331 temp:54  nonce:190      error:0    crc:0    x:0   / 1 repeat:0    pct: 95.7%/  0.0%
   C110: freq:528  vol:332 temp:52  nonce:177      error:0    crc:0    x:0   / 1 repeat:0    pct: 97.6%/  0.0%
)
slot2:
(
   slot: 2
   freqs_avg: 606
   temp: 72.38
   chip_verify_diff: 31
   work_count: 74950
   nonce_count: 14174
   nonce_before: 44
   nonce_err_count: 1
   nonce_err_crc_count: 0
   nonce_err_repeat_count: 2
   nonce_per_sec: 46
   nonce_repeat_%: 0.014110
   work_interval: 5000
   work_actual_interval: 4043.55
   Work Delay seconds: 0.000000
   Work Delay Hash Loss%: 0.000000
   C0  : freq:632  vol:337 temp:61  nonce:109      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C1  : freq:617  vol:337 temp:59  nonce:143      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C2  : freq:629  vol:335 temp:67  nonce:132      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C3  : freq:619  vol:337 temp:62  nonce:154      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C4  : freq:635  vol:339 temp:60  nonce:131      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C5  : freq:635  vol:339 temp:61  nonce:128      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C6  : freq:621  vol:335 temp:62  nonce:148      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C7  : freq:635  vol:334 temp:63  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C8  : freq:624  vol:334 temp:65  nonce:135      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C9  : freq:635  vol:335 temp:67  nonce:136      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C10 : freq:616  vol:340 temp:65  nonce:149      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C11 : freq:619  vol:339 temp:63  nonce:145      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C12 : freq:640  vol:332 temp:66  nonce:135      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C13 : freq:611  vol:333 temp:67  nonce:133      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C14 : freq:627  vol:333 temp:70  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C15 : freq:635  vol:330 temp:72  nonce:155      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C16 : freq:608  vol:334 temp:70  nonce:149      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C17 : freq:621  vol:334 temp:70  nonce:136      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C18 : freq:612  vol:327 temp:72  nonce:169      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C19 : freq:612  vol:327 temp:73  nonce:137      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C20 : freq:627  vol:326 temp:75  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C21 : freq:634  vol:328 temp:77  nonce:131      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C22 : freq:611  vol:331 temp:75  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C23 : freq:604  vol:331 temp:73  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C24 : freq:592  vol:323 temp:77  nonce:134      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C25 : freq:604  vol:321 temp:78  nonce:121      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.3%/  0.0%
   C26 : freq:636  vol:319 temp:82  nonce:151      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C27 : freq:627  vol:324 temp:89  nonce:148      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C28 : freq:590  vol:329 temp:80  nonce:141      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C29 : freq:601  vol:326 temp:78  nonce:147      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.2%/  0.0%
   C30 : freq:572  vol:319 temp:82  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C31 : freq:598  vol:318 temp:83  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C32 : freq:618  vol:320 temp:89  nonce:128      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C33 : freq:621  vol:315 temp:95  nonce:137      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C34 : freq:583  vol:319 temp:85  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.5%/  0.0%
   C35 : freq:582  vol:319 temp:79  nonce:141      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C36 : freq:536  vol:322 temp:81  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C37 : freq:621  vol:321 temp:90  nonce:134      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C38 : freq:638  vol:320 temp:95  nonce:142      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.5%/  0.0%
   C39 : freq:596  vol:311 temp:94  nonce:109      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C40 : freq:598  vol:314 temp:94  nonce:103      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C41 : freq:563  vol:314 temp:88  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C42 : freq:573  vol:312 temp:87  nonce:125      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C43 : freq:581  vol:312 temp:93  nonce:97       error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C44 : freq:597  vol:310 temp:96  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C45 : freq:590  vol:314 temp:95  nonce:118      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C46 : freq:586  vol:317 temp:91  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C47 : freq:587  vol:319 temp:86  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C48 : freq:582  vol:311 temp:95  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.7%/  0.0%
   C49 : freq:563  vol:311 temp:90  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C50 : freq:593  vol:309 temp:101 nonce:117      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C51 : freq:557  vol:308 temp:97  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C52 : freq:584  vol:311 temp:96  nonce:112      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.7%/  0.0%
   C53 : freq:585  vol:311 temp:98  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C54 : freq:619  vol:318 temp:94  nonce:106      error:1    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C55 : freq:575  vol:315 temp:92  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C56 : freq:551  vol:314 temp:91  nonce:111      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.1%/  0.0%
   C57 : freq:559  vol:314 temp:88  nonce:123      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C58 : freq:605  vol:318 temp:95  nonce:134      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C59 : freq:602  vol:323 temp:96  nonce:108      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.0%/  0.0%
   C60 : freq:612  vol:320 temp:91  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C61 : freq:595  vol:322 temp:92  nonce:123      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C62 : freq:584  vol:322 temp:88  nonce:129      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C63 : freq:601  vol:316 temp:89  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C64 : freq:608  vol:320 temp:89  nonce:131      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.6%/  0.0%
   C65 : freq:592  vol:322 temp:87  nonce:140      error:0    crc:0    x:0   / 0 repeat:1    pct: 98.2%/  0.0%
   C66 : freq:630  vol:312 temp:88  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.8%/  0.0%
   C67 : freq:581  vol:318 temp:87  nonce:109      error:0    crc:0    x:0   / 0 repeat:1    pct: 98.1%/  0.0%
   C68 : freq:571  vol:317 temp:86  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C69 : freq:602  vol:319 temp:86  nonce:134      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C70 : freq:616  vol:322 temp:89  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C71 : freq:590  vol:325 temp:84  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.0%/  0.0%
   C72 : freq:580  vol:321 temp:88  nonce:114      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.9%/  0.0%
   C73 : freq:602  vol:322 temp:93  nonce:130      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.2%/  0.0%
   C74 : freq:588  vol:322 temp:87  nonce:118      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.7%/  0.0%
   C75 : freq:627  vol:319 temp:86  nonce:140      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C76 : freq:592  vol:322 temp:86  nonce:132      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.8%/  0.0%
   C77 : freq:599  vol:323 temp:84  nonce:118      error:0    crc:0    x:0   / 0 repeat:0    pct: 96.3%/  0.0%
   C78 : freq:596  vol:327 temp:81  nonce:128      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.0%/  0.0%
   C79 : freq:600  vol:327 temp:83  nonce:139      error:0    crc:0    x:0   / 0 repeat:0    pct: 95.5%/  0.0%
   C80 : freq:625  vol:323 temp:84  nonce:120      error:0    crc:0    x:0   / 0 repeat:0    pct: 97.4%/  0.0%
   C81 : freq:577  vol:320 temp:82  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C82 : freq:588  vol:322 temp:81  nonce:136      error:0    crc:0    x:0   / 0 repeat:0    pct: 94.6%/  0.0%
   C83 : freq:641  vol:317 temp:82  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C84 : freq:597  vol:328 temp:78  nonce:119      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.1%/  0.0%
   C85 : freq:631  vol:327 temp:79  nonce:141      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C86 : freq:602  vol:325 temp:81  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C87 : freq:602  vol:328 temp:78  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C88 : freq:593  vol:330 temp:77  nonce:138      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C89 : freq:633  vol:327 temp:75  nonce:143      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C90 : freq:620  vol:331 temp:79  nonce:113      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C91 : freq:617  vol:333 temp:75  nonce:128      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C92 : freq:614  vol:331 temp:77  nonce:138      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C93 : freq:625  vol:331 temp:75  nonce:107      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C94 : freq:606  vol:333 temp:72  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C95 : freq:621  vol:334 temp:72  nonce:128      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.4%/  0.0%
   C96 : freq:613  vol:334 temp:69  nonce:142      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C97 : freq:614  vol:334 temp:71  nonce:127      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C98 : freq:617  vol:334 temp:72  nonce:157      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.2%/  0.0%
   C99 : freq:615  vol:337 temp:70  nonce:130      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.5%/  0.0%
   C100: freq:627  vol:339 temp:68  nonce:136      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C101: freq:611  vol:340 temp:66  nonce:146      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.2%/  0.0%
   C102: freq:606  vol:337 temp:64  nonce:115      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.7%/  0.0%
   C103: freq:612  vol:337 temp:66  nonce:138      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.8%/  0.0%
   C104: freq:624  vol:335 temp:67  nonce:124      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.4%/  0.0%
   C105: freq:620  vol:339 temp:64  nonce:122      error:0    crc:0    x:0   / 0 repeat:0    pct: 99.0%/  0.0%
   C106: freq:620  vol:341 temp:63  nonce:126      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C107: freq:617  vol:342 temp:62  nonce:116      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.9%/  0.0%
   C108: freq:630  vol:336 temp:63  nonce:134      error:0    crc:0    x:0   / 0 repeat:0    pct: 98.6%/  0.0%
   C109: freq:611  vol:338 temp:60  nonce:132      error:0    crc:0    x:0   / 1 repeat:0    pct: 98.4%/  0.0%
   C110: freq:622  vol:337 temp:64  nonce:138      error:0    crc:0    x:0   / 1 repeat:0    pct: 99.0%/  0.0%
)

Miner Log:

01-01 08:00:28 Code<warn>[521]: reason: Slot1 chip bin type is different from other
01-01 08:00:28 Code<error>[206]: reason: Power input voltage error, vin: 0.00/0.00/0.00V
01-01 08:00:28 Code<warn>[522]: reason: Slot2 chip bin type is different from other
09-23 21:44:09 Code<error>[251]: reason: Power input under-voltage protection 1. code: 0x40000
09-23-21 hs0,freq0,bt0,ct0|hs1,freq1,bt1,ct1|...|fan0,fan1|env temp|cpu temp,cpu rate,mem|vout,pin,vin

Repair Whatsminer M50 250 error

The fix for the Whatsminer 251 error is to replace the PSU. A used PSU typically costs around $80, while a brand-new one can be about $180.

After installing the new PSU, the log confirmed the issue was resolved, and the message:
“Code<error>[251]: reason: Power input under-voltage protection 1. code: 0x40000”
was gone.

PCB1:ZHM32X6F853219K40126 PCB2:ZHM32X6F853305X40229
01-01 08:00:27 Code<warn>[521]: reason: Slot1 chip bin type is different from other
01-01 08:00:27 Code<warn>[522]: reason: Slot2 chip bin type is different from other
01-01 08:00:28 Code<error>[2010]: reason: All pools disabled for 2s, please check the network or pools configure.
09-23-21 hs0,freq0,bt0,ct0|hs1,freq1,bt1,ct1|...|fan0,fan1|env temp|cpu temp,cpu rate,mem|vout,pin,vin

With a fresh PSU, the Whatsminer M50 was back to stable hashing at full performance.

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