Hi
For two weeks now i have been having a problem where my PC abruptantly shuts down after 45min to an hour. Firstly, here are my specs:
Motherboard: 790FX-GD70
CPU: AMD Phenom II x4 955
Memory: Apacer 4Gb (dimm1) + Apacer 2Gb (dimm2)
HDD: WD Green 1TB
PSU: Corsair 500W
Graphics: Sapphire HD7850 DDR5 1GB
OS: Windows 7 Ultimate
It started with a bad cheksum error upon startup and then the pc would either restart once in windows or freeze during the windows loading screen. After a shut down there is still a current, the lights on the motherboard stays on (and i`m unable to turn on the pc while they are on) and only go off after 3 seconds after switching off the power supply at the back of the case. I did many things and hardware changes which i will rather list for easier reading. Each one of these changes were done seperately to try and isolate the problem.
After some googling i figured its the power supply (also 500W office brand) which i immediately replaced with the Corsair 500W. That did not solve anything.
Ran windows memory diagnostic with no error. Started with only one ram chip (4gb and 2gb seperately) in dimm1. Removed both sticks and put in a known working stick from another pc.
Unplugged 1TB and plugged in an old working 180Gb.
Reinstalled Windows (was able to get into windows for longer after rebuilding the pc)
Flashed BIOS
Replaced motherboard with 990FXA-GD65 (same cpu though).
Replaced CPU with FX6100 (on new mobo).
Replaced stock cpu cooler with coolermaster Hyper 101.
Added an old MSI R5450 (draws power from mobo directly) which i used to see if my MSI HD6870 was faulty. This worked. Sadly this might have been something like a false positive as i then bought the sapphire HD7850 which did the same again.
This is where i am at the moment. Best progress i made was with the graphic cards. The only difference is the two bigger cards, where the problem still persisted, uses the 6-pin PCI-e plugs directly from the power supply while the smaller R5450 draws power from the mobo directly. But again, i cant think its a power supply issue as i had a 500W for 2 years and it worked fine.
I removed the new mobo and cpu since i figured they were not the problem, i will be returning them as I cant afford new parts anymore.
If you guys have any ideas then please let me know, i`m going bald here..
Regards
For two weeks now i have been having a problem where my PC abruptantly shuts down after 45min to an hour. Firstly, here are my specs:
Motherboard: 790FX-GD70
CPU: AMD Phenom II x4 955
Memory: Apacer 4Gb (dimm1) + Apacer 2Gb (dimm2)
HDD: WD Green 1TB
PSU: Corsair 500W
Graphics: Sapphire HD7850 DDR5 1GB
OS: Windows 7 Ultimate
It started with a bad cheksum error upon startup and then the pc would either restart once in windows or freeze during the windows loading screen. After a shut down there is still a current, the lights on the motherboard stays on (and i`m unable to turn on the pc while they are on) and only go off after 3 seconds after switching off the power supply at the back of the case. I did many things and hardware changes which i will rather list for easier reading. Each one of these changes were done seperately to try and isolate the problem.
After some googling i figured its the power supply (also 500W office brand) which i immediately replaced with the Corsair 500W. That did not solve anything.
Ran windows memory diagnostic with no error. Started with only one ram chip (4gb and 2gb seperately) in dimm1. Removed both sticks and put in a known working stick from another pc.
Unplugged 1TB and plugged in an old working 180Gb.
Reinstalled Windows (was able to get into windows for longer after rebuilding the pc)
Flashed BIOS
Replaced motherboard with 990FXA-GD65 (same cpu though).
Replaced CPU with FX6100 (on new mobo).
Replaced stock cpu cooler with coolermaster Hyper 101.
Added an old MSI R5450 (draws power from mobo directly) which i used to see if my MSI HD6870 was faulty. This worked. Sadly this might have been something like a false positive as i then bought the sapphire HD7850 which did the same again.
This is where i am at the moment. Best progress i made was with the graphic cards. The only difference is the two bigger cards, where the problem still persisted, uses the 6-pin PCI-e plugs directly from the power supply while the smaller R5450 draws power from the mobo directly. But again, i cant think its a power supply issue as i had a 500W for 2 years and it worked fine.
I removed the new mobo and cpu since i figured they were not the problem, i will be returning them as I cant afford new parts anymore.
If you guys have any ideas then please let me know, i`m going bald here..
Regards
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