Custom gaming rig won't power on anymore

[Soulsabaz]

Hey guys, so this is my first time on the forums and I figured someone could help me out here. I built my rig 3 years ago and just yesterday I was just doing basic web surfing and it decides to shut off completely without warning. I thought maybe my PSU has finally died and so I decided to check by pulling the power etc, turning the switch off then back on. Now the very first time I tried this, the started up for a few minutes giving me an error saying there was a power surge and it shut off to protect the components and so I was just able to allow it to boot up windows. After a few seconds of that, the computer completely shut off again. I went through the whole power routine one more time and instead of actually booting up, my LED fan flickers for a millisecond and the PC won't power anymore.

Specs:
Windows 7 64bit
Nvidia GeForce GTS 450 - 1GB memory stock over clock
AMD Phenom II Black Edition Duo Core 3.2ghz (I unlocked it to allow 4 cores)
ASUS M4A4785-M Motherboard
4GB RAM DDR2
Thermaltake TR2 600W

Now I would think that my PSU has just run its course but my tech buddy who helped me build this says it could be a problem with the motherboard.
What do you guys think?
I apologize for any "noobness" in advance LOL

 

[IntelFanboy417]

Welcome to the forums! And dont worry about "noobness" as not everyone know everything about computers. From this it sounds like their actually could have been a power surge. Did any breakers go out in your house? If your sure that there was no power surge then perhaps your PSU went haywire. I honestly do hate to say this, but if it did surge, it could have severely damaged the motherboard or some other parts of the system. I would recommend you try using another PSU if you can, but something might have seriously gone wrong with the motherboard if it does not even start. All I can say is check the PSU, and if you board did get affected then try to salvage the CPU and the RAM and stuff like that.

 

[Matt_E]

If possible test the power supply. Most likely its died. Usually psu will stop surges from affecting the components inside

 

[Soulsabaz]

thanks for the help guys, I ended up just replacing the PSU and everything went back to normal!