Seasonic M12II 520W (ASUS H77M + i3 2100) Power Surge Detected

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jiewmeng

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May 7, 2011
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I am using a Seasonic M12II 520W (or 600+W I cant remember ...). Other components include

- i3 2100
- ASUS H77M
- 2x4GB Kingston DDR3
- ATI (Sapphire) HD5670
- 128GB Corsair M4 SSD
- 1TB Hitachi
- 500GB Western Digital (2.5" Laptop HDD actually ...)

I remember quite sometime back, I see an error about Power Surge detected on BIOS screen ... usually what I did is simply restart and things work. It didnt happen very frequently.

power supply surges detected during the previous power on .Asus anti-surge was triggered to protect system from unstable power supply unit
Click to expand...

But now that I am experiencing problems with my PC (http://www.tomshardware.com/answers...error-reason-cpu-2100-asus-h77m.html#10644994) and while troubleshooting, refitting components, ensuring proper connections, taking out RAM etc. I got that message once again ... I think its the PSU that spoilt my hardware?

Is Seasonic M12II a lousy CPU? Whats a good replacement. It appears CPU+MB is spoilt now? How do I know if a PSU is good before I spoil another component? What are likely causes of such power surge? Is components trying to draw too much power the cause? Looking at my hardware, do you think thats the case?
 
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C12Friedman

C12Friedman

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Jan 25, 2012
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The SeaSonic M12II series is one of the better designed and built PSU's on the market. I would personally be in contact with them about replacement if it is the PSU. A power surge may come from the PSU itself or from the motherboard's VRM but the PSU is a likely suspect. I doubt any components are damaged since you are getting BSOD (I assume) errors - when you stop getting those errors and shutdowns happen without a BSOD message/report then I may be concerned things may be getting damaged but even then...
Personally, I would just do an RMA with SeaSonic and use the replacement they send, if problems continue, I'd then suspect the mobo
 
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J

jiewmeng

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Most of the time now, I am getting BIOS POST then a blinking cursor ... I think the CPU/MB maybe damaged now ... should have took the power surge detected error more seriously ...

So now, whats the likely causes of this? The build/PSU worked for abt 1 year ... tho I remember about 3 such power surge errors before (spanning ~1 year). From what I might expect hardware failures are most likely to happen ~2 weeks after purchase and fall after that for years? What might cause it to spoil? While building the PC, my sweat might have dripped on the MB but I did clean it up soon after ... does such things spoil the hardware? Even so, it would surface nearly immediately?
 
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C12Friedman

C12Friedman

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Jan 25, 2012
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I'm really leaning toward the motherboard but it wouldn't be (not likely at least) from anything done during the build that long ago. It's possible the PWM or other part of the VRM is failing prematurely or possibly the build up of dust may have caused a minor short, could happen in the PSU or (less likely) on the motherboard... But SeaSonic is reported to be easy to RMA with so you might look that way as a first option
 
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J

jiewmeng

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I know theres a bootable USB plugged in, the internal HDD is also bootable. I have also tried going into BIOS to explicitly set boot device. I think the boot devices are working.

I just plugged those HDDs into another PC and they worked.

 
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