My PC config (4 years old):
- Motherboard: ASUS M2N 68 - AM Plus
- CPU: AMD PHENOM X2 545.
- HDD: WD 320 GB
- RAM: 2 GB DDR2 800Hz
- Power supply: Intext 450W switching PSU
About a month ago my PSU was gone with bursting sound. The green LED light on motherboard was not on, so I purchased a new 450 W Zebronics switch-mode PSU. The computer started and worked fine for 2-3 hours.
Then after some days I found its just powering off randomly. I checked the temperatures and it was heating up, so I took out CPU fan cleaned it and applied new gel.
But then at latter stages the frequency of restarts increased and some times even the CPU fan started and stopped in 1 mins or less.
Then again after 2-3 days the newly purchased PSU was gone and I got it replaced with same model.
Now I am still facing same problem, I tried using my PSU on other machine and it worked fine there, but my machine did not worked fine with alternate PSU.
Sometimes after starting up (may be 1-2 failures) it works perfect for 2-2.5 hours. If I start it again latter it just restarts in every 5-10 mins
Also one thing to notice is , if I remove the HDD power supply from PSU or remove the 12V ATX cable (4 pin) from the motherboard then CPU fans starts and continue to rotate, but off course system does not start.
I am confused about this. Please advice. Thanks.