What failing?

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I have a Seasonic S12 600W power supply bought about 18 months ago. I've begun to experience random events where my PC will just switch off with no warning/beeps/slow downs, just as if the power supply was pulled out (and yes, I have checked that!). The temperatures are well within normal limits, there are no voltage spikes/drops that I can see and no driver problems that come up or BSODs. I can immediately restart the computer with no problems, sometimes it will then be fine and other times it will do it again within 20-30 minutes. It is unrelated to what software I am using.

I am running an Opty 165 at 2.6GHz on an Asus A8N Sli Deluxe Motherboard, 4 SATA hard drives, 2 IDE DVD drives, a BFG 7800GT graphics card and a Creative X-Fi Extreme Music sound card, all in Win XP (although I had similar problems with a RC 1 of Vista).

I have no temperature monitoring in my power supply and was wondering whether the supply was overheating? It's all sat in a Coolermaster Stacker 830 case and CPU temp is idle at 28-30deg C and fully loaded at <50 deg C. Mobo chipset never gets above 40deg C and case likewise. The case has something like 5 120mm fans, so should be reasonbly cool!

Anyone got any thoughts?
 
melbourne720 said:
Sounds like the PSU - could you get a friend to lend you his for an afternoon to test?
Click to expand...

Will see, although problem is it happens so unpredictably, and is impossible to reproduce. Will see what I can manage.
 
I sorted out simular problem with a friends PC over weekend, turned out to be damaged bare wire from case fan touching case skin. :eek: Lucky for him nothing was damaged, however have since been told such sudden power downs can also be result of dodgy power connections where various components are plugged into PSU - so my advice is check them ;)

Failing that, then id imagine PSU playing up. :(
 
Any idea if Seasonic have a decent warranty? Is it direct to them or through OcUK? Bought about 18 months ago, so would be nice to still be under warranty, although often things are not after 12 months.

Whether failing after 18 months is "fit for purpose" and "reasonable expectation " is obviously another issue...
 
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