+12v too high. Advice?

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Mike Roygbiv

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Mar 7, 2015
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Been receiving whea uncorrectable errors over the past week. Noticed my 12v hovers between 12.5v to 12.6 v consistently. Assuming this might be why I'm getting the latter BSOD's. My question is their anything I can do other than replacing the PSU to lower the 12v? Definitely a noob question, please forgive me! Was fooling around with the BIOS, set minimum cpu fan speed to 30%. Enabled cpu load line calibration. It doesn't appear to be a setting where I can adjust 12v in BIOS.

Specs:
Radeon hd 4800
AMD phenom II x4 965
Asus m4a88t-v evo/usb3 board

thank you
 
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Pinhedd

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Aug 7, 2007
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Hi, this is not at all related to your errors.

The ATX standard permits the voltage rails to fluctuate up to 5% in either direction. The minimum value for the +12 volt rail is +11.4 volts, and the maximum value for the same is +12.6 volts. Furthermore, the +12 volt rail is never used to drive electronic components directly, it's used to drive DC-DC stepdown converters which lower the voltage to one that is circuit-appropriate.

Other problems with the PSU may cause hardware to function incorrectly, which can cause that particular BSoD, but the +12 volt rail is within specification.
 
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Mike Roygbiv

Reputable
Mar 7, 2015
15
0
4,510
I appreciate you guys taking your time to offer feedback. Ran sfc(scan) and chkdsk. No errors both ways. Updated BIOS. Drivers are all up to date as well. Can't find what PSU is using CPUID, assuming I have to open case. My rigs stability has always been a bit streaky, but never had a BSOD directly related to hardware. While I have your attention should I load whea uncorrectable bug check? Also, if it is hypothetically a PSU problem, aside from replacing PSU can you guys recommend any BIOS adjustments that would lead to more stability? Thanks again.
 
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