Faulty PSU or GPU?

zemc77

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Sep 21, 2014
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Hi everyone. I'd appreciate it if you could provide some feedback on a problem that has got me restless.

I just recently put together a gaming PC - my first one ever. Bought all components separately over a period of time and just a few days ago finally put it together.

First day using it, it crashes and restarts during antivirus installation. No BSOD. I also noticed it would sometimes take too long to open files or folders.

Then a while later while playing Left 4 Dead 2 it crashes, but keeps crashing and restarting during boot up attempts. It even restarted while trying to select a different boot up device from the BIOS. No BSODs anywhere either.

At first I thought it was the hard drive, due to the access time issues and startup crashes. I sent the hard drive back to the dealer to claim my warranty, but yesterday they contacted me to tell me the drive was working perfectly fine and they were sending it back.

I have no other available drives to test, so I plugged in my laptop's drive and started playing L4D2 on it to check if it would crash again, and it did.

Bottom line, someone told me it might be the GPU, because it crashed twice while I was playing games, and I'm too scared about the prospect because I spent months saving up for that graphics card.

However I read that GPU failures are usually accompanied by video glitches, of which I have seen absolutely none while I was playing.

The other probable culprit, I read, is the PSU. According to an article at PC Advisor, a faulty PSU can also cause unexpected reboots, startup failures and HDD problems. This has got me hopeful the GPU I bought has nothing to do with it.

My system consists of:

AMD FX-6300 CPU
AMD Radeon R9 270X GPU
Asus M5A78L-MX Plus Motherboard
Two 4GB Kingston HyperX Fury 1600mhz
Acteck 700W ATX PSU
Old case I had lying around but with good ventilation.

GPU and PSU both were bought second-hand. I never once saw a BSOD during any of the crashes.

With what you've read, do you think it could more likely be the PSU? Or is the absence of graphical glitches not enough to rule out a faulty GPU?

Could this be something else entirely I'm not taking into account?

Thanks for the help.

UPDATE: My exact PSU model is Acteck AF-B700 GAFU-029. Acteck is a mexican company, so I don't blame you if you haven't heard about it.
 
Solution
Hello,

I checked out of curiosity for this PSU and guess what: the technical specs are nowhere to be found! Go for a well-known PSU brand, don't risk the system integrity (as a rule, you shouldn't use an 20$ PSU for an 150$ GPU).
Thanks for your replies everyone. I will check that as soon as I get home from work geofelt, many thanks.

Still, would you rule out the GPU as the problem or should I stay on my toes about it?
 
Hello,

I checked out of curiosity for this PSU and guess what: the technical specs are nowhere to be found! Go for a well-known PSU brand, don't risk the system integrity (as a rule, you shouldn't use an 20$ PSU for an 150$ GPU).
 
Solution
I looked for some user feedback on Acteck gear and everyone says the same thing: Acteck stuff sucks. Even new gear performs badly, and seeing how I bought this PSU second-hand it's highly possible that it is indeed the PSU.

I've known this brand all my life so I thought they were good quality. Guess I was wrong.

Thanks again everyone.
 
Im having the same problems but i have a good PSU...and im confused about what is bad too...
GPU : Sapphire hd 7770 vapor-x ghz edition[2 fans] brand new
PSU : Corsair vs450 4 months old...
Which is bad GPU or PSU???? many forums say that this psu can take my system easily....

other specs:
CPU : intel core2duo e8400 3ghz
MOBO : Gigabyte ga g41m combo
 


Hello,

Making your own forum thread (in which, apart from the full system specs, you will explain how the issues appeared and what you have done to find a solution) is highly advisable, as your question has nothing to do with this specific thread.
 


My bad...i was just trying my luck here because on my thread no ones been able to solve my problem yet..
here :
http://www.tomshardware.com/answers/id-2725565/shutdowns-automatically-playing-games-graphics-card.html