PSU showing weird voltage

Hello everyone,
I have some problem with my computer and hope you can help me =)
Here is the thing, when i play games (or run a benchmark and put the GPU to 100% load) in 2 or 3minutes my computer stop.
Event viewer show a kernel power stop Error : 41
No bsod or anything.
I was crashing on a CPU benchmark too..
I bought a new cooler for my CPU and could handle 1 hour of benchmark on OCCT at full load.
Memory was tested with memtemps all the night.
For the PSU, i'm experiencing something weird, on the BIOS every temps in the normal range (+- 5%).
But on HWmonitor it's very very low.(On the +12V and -5V).
So my question is : Should i take the risk to RMA the PSU?(RMA for mistake is approximatively 50$ in my country :fou: )

And my config:
Cooler Master Silent Pro M - 850W
Intel Core™ i7 930
Gigabyte GA-X58A-UD3R
Hitachi Deskstar 7K1000.C S-ATA - 1000 Go - 32 Mo
MSI N460GTX Cyclone 1GD5/OC (GeForce GTX 460)
G.Skill Kit Extreme3 3 x 4 Go PC10600 Ripjaws CAS 9

Thanks for your time.
6 answers Last reply
More about showing weird voltage
  1. The software isn't reading right, you don't a -5v rail .
  2. It looks like a hardware monitor error. If your +12 was actually 3.97v, your system would not even POST. I'd take a digital multimeter and verify the actual voltage. If it's under 11.7 during load, or above 12.3 at any time, i'd consider an RMA.
  3. delluser1 said:
    The software isn't reading right, you don't a -5v rail .

    The ATX standard used to have a -5V rail. These days it's not seen much any more, but being the standard supported it, the software monitors will sometimes still poll the hardware monitor for a -5v reading. It used to be the white wire on pin 18 of the ATX connector, and typically provided for certain legacy ISA cards. It's not uncommon for software monitors to report the -5v as a weird value, since it's not present any more in modern systems. These days, pin 18 is almost always NC or empty.
  4. Hello,
    Thanks for your answers.
    I bought a multimeter and tested everything.
    Everything is in the perfect range... :(
    I was hoping the problem was from the PSU.
    So i guess now the only remaining part are the graphic card and the motherboard.
    Crashing the graphic card at 59 degree (Celcius)... I'm trying to get another Graphic card from a friend to test it.
  5. Wow, sorry for my last post, thats what happens when the drugs kick in.
    You mentioned the kernel power error, google it, more often than not hardware is not the cause.
  6. I just format everything 1 day ago. Still the same problem :/
    For my kernel power error here is the log.

    - <Event xmlns="">
    - <System>
    <Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
    <TimeCreated SystemTime="2011-11-10T18:09:42.558821200Z" />
    <Correlation />
    <Execution ProcessID="4" ThreadID="8" />
    <Security UserID="S-1-5-18" />
    - <EventData>
    <Data Name="BugcheckCode">0</Data>
    <Data Name="BugcheckParameter1">0x0</Data>
    <Data Name="BugcheckParameter2">0x0</Data>
    <Data Name="BugcheckParameter3">0x0</Data>
    <Data Name="BugcheckParameter4">0x0</Data>
    <Data Name="SleepInProgress">false</Data>
    <Data Name="PowerButtonTimestamp">129654218875571802</Data>

    But there is no bugcheck parameter :/
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