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Computer shuts down instantly without warning

post #1 of 11
Thread Starter 
I suspect the power supply but its a SeaSonic X750.

after about 30 mins it just shuts off instantly like a power outage.

then it trys to boot up again constantly for a split second at a time.

i wasnt gaming or anything just web-browsing. and temps are really low.


if anyone has any experience with this problem please help.
im going to install my backup PSU to see if it fixes the problem.


strange after a while it boots up just fine but shuts down again after 30mins..

dam i bought that seasonic to avoid this exact problem (if its the PSU issue)
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post #2 of 11
Simply because it's SeaSonic doesn't meant it's error free, every brand has units that will fail. It's silly to assume a brand will be error free just due to its name.

That said, if changing the PSU doesn't work, have you tried checking the POST code to see if you're getting stuck in some sort of weird boot loop? Check that if you can.
post #3 of 11
Thread Starter 
ok wow i guess it is the power supply. i quickly turned my computer on and checked all the voltages and my 12v drops to 10.5v.
i can hear my fans slowing down...
and 3mins later i turned off again. -__-


anyone with experience with seasonic RMA??
i had to do one with OCZ before and it cost me $20 in shipping for a $40 power supply mad.gif
Quote:
Originally Posted by Dorm Room Hero View Post

Simply because it's SeaSonic doesn't meant it's error free, every brand has units that will fail. It's silly to assume a brand will be error free just due to its name.
That said, if changing the PSU doesn't work, have you tried checking the POST code to see if you're getting stuck in some sort of weird boot loop? Check that if you can.

thanks for the fast reply.

i know even the very best can be faulty sometimes but i assumed seasonic would be more rigorous in their QC.
Edited by Coolwaters - 10/12/12 at 11:20pm
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post #4 of 11
sounds like a similar issue I am having. Mine doesnt shut down but either goes black and GPU fan goes to 100% and then it wont boot for awile after I shut it down. Then it will boot fine and run for awhile. I have tried both GPUs runnign on their own and in different slots and also tried different ram updated mobo bios chipset drivers and AMD drivers. Nothing is working. It is running now after I many attempts to get it turn on. Many times pushing the power button did nothing then it would and then the MEMOK light stays on and nothing posts, then i let it sit for a few minutes and it booted fine.
post #5 of 11
Thread Starter 
Quote:
Originally Posted by Topgearfan View Post

sounds like a similar issue I am having. Mine doesnt shut down but either goes black and GPU fan goes to 100% and then it wont boot for awile after I shut it down. Then it will boot fine and run for awhile. I have tried both GPUs runnign on their own and in different slots and also tried different ram updated mobo bios chipset drivers and AMD drivers. Nothing is working. It is running now after I many attempts to get it turn on. Many times pushing the power button did nothing then it would and then the MEMOK light stays on and nothing posts, then i let it sit for a few minutes and it booted fine.

i thought it was a failing RAM or something or bad OC (stable for months already though)

but even with default settings i still get the problem.

my 12v rail drops to 10.5v so i need to RMA the PSU...
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post #6 of 11
Quote:
Originally Posted by Coolwaters View Post

anyone with experience with seasonic RMA??
i had to do one with OCZ before and it cost me $20 in shipping for a $40 power supply mad.gif

As far as I'm aware, as with most RMAs, the cost of shipping the unit to them for RMA will be your responsibility. It sucks, but it's better than a broken PSU. If you made a big enough deal to the customer service about the unit and whatnot, you MIGHT be able to get yourself a postage paid label, but it's all up to you if you want to sit on the phone arguing for something you may or may not get.
post #7 of 11
i dont have a volt tester or know how to test the PSU anyway. I think I am going to go get a new PSU tomorrow. Hopefully the HX1050 if they are in stock still.
post #8 of 11
Quote:
Originally Posted by Topgearfan View Post

sounds like a similar issue I am having. Mine doesnt shut down but either goes black and GPU fan goes to 100% and then it wont boot for awile after I shut it down. Then it will boot fine and run for awhile. I have tried both GPUs runnign on their own and in different slots and also tried different ram updated mobo bios chipset drivers and AMD drivers. Nothing is working. It is running now after I many attempts to get it turn on. Many times pushing the power button did nothing then it would and then the MEMOK light stays on and nothing posts, then i let it sit for a few minutes and it booted fine.

Also, to address you while I'm here, did you ever actually use the MemOK switch? As in, holding it on so it sets the timings on your RAM? I don't want to make it seem like you missed something obvious, just the way you worded it in the post makes it seem like you may not have tried that, which could make a difference. Your motherboard manual should be able to tell you how to use the switch if you're unsure.
post #9 of 11
No I actually did push it and I think it tuned the ram and maybe why it booted properly. I ahve to wait and see if it fails again to boot properly.
post #10 of 11
@ OP, RMA with seasonic is pretty quick. If you call them to setup an RMA ask about cross shipment.
     
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