Today I tried turning my computer on, and I found that none of the ports were working, including my graphics card on the PCIe slot. I have tried using all USB ports, none of them work. I took the whole unit to my friends house, and it worked perfectly there!
Since my motherboard does not have an onboard graphics card, there is no way to get into bios because the screen doesnt display anything. I have two keyboards, one in the PS/2 port, and the other in the USB, both are not working. I attached the LAN wire also, and the leds do not light up, so i assume that all onboard ports are not working. Heatsink fan works, so do the other two case fans which i have installed. The graphic card fan also runs, it is just the ports which is the problem.
I would appreciate it if someone could shed some light on this problem.
Motherboard: GA 870a usb3 rev 3.1
Processor: AMD phenom II x6 1055T
Graphic card: ATI Radeon HD 6850
Since the PC doesn't boot or you don't get any image on the monitor, you can't know if the ports work or not. And you said that the PC worked fine in the friends house. Think what different components you've used there (keyboard, mouse, cables) and there might be the issue.
I dont have another video output on the computer, as my motherboard has no onboard display port. Also, my graphic card takes a DVI and HDMI input, and I my laptop takes VGA and HDMI. I however have a VGA>DVI and a DVI>VGA converter, and so I tested using all 3 cables.
I think there is something wrong with the motherboard, I wanted to know exactly what that is before I made any wrong purchases.
I've had this pc since July last year though, and it was working fine till yesterday. And no, no electrical problems as such, which is why this whole issue has me stumped... I think either its some loose connection on the motherboard, or some connections have taken damage.
Will post the solution once i get it figured out though
So I figured out the problem. Like I said, my old heatsink fan wasnt working, so I replaced it. But, the heatsink fan must have died quite some time ago, because it damaged the processor, and THAT is what was causing the problem!
Now I got a new processor and it works just fine.