Overheating motherboard chipset boots PC, but no display.

rhazor

Honorable
Apr 23, 2013
6
0
10,510
Hi. This PC was working stable for 8 years and now its chipset fan died and it gets too hot and doesn't boot PC properly. There's an image how ASUS A8N5X motherboard looks: http://goo.gl/7mq8P and you can see the chipset has its own firm fan. Well, it died and it is not spinning no more and I cannot find anywhere where I could buy that type of fan (3-pin).

So what I did, I applied a radiator like this: http://goo.gl/Q2TiW and it worked for like a week and then it started overheating too (so hot that you can't really touch it, or you'll get burned).

So then I unscrewed it and applied some thermal paste and put the radiator back again, but still no success.

I even tried putting on a 80x80 case fan and it really cools the radiator down and you can touch it for unlimit time and you won't burn because its simply cooled down by the fan, but still, again, it won't boot up correctly.

So there's what's going on. If you keep PC off for like 15 minutes and then boot it - it will boot successfully with no problems and with display and you can use it for work and etc. But then if you decide to restart it or just shut it down and boot again you get that beep noise, something like 'beeeeeeeeeeeeeep bep bep bep' (1 long and 3 short beeps). You get black screen, but Windows still loads and you can hear its booting up melody (Windows XP) and I even managed to run Winamp with keyboard and no display to play some music. So obviously the computer is working, but no display. So to make it work you have to shut it down and keep for another 15 minutes off and then it will boot successfully.

I thought it might be wrong something with graphic card, but I tested that card on another computer and it worked and I also tested another graphic card on this non-working computer and I get same beeping results.

I have no idea how to fix this. Is it possible that the only way to fix it is replacing motherboard? I can't really spend any more money on this PC, I just bought a new computer and I want to sell this one as working one for like 60$. But I can't even make it work properly!

Please help,

Cheers,
Matt
 

girogalllas

Honorable
May 12, 2013
159
0
10,760


if the ram is bad it will not display any problems until the area that has the problem is used. run a memory check just to rule it out.
 

rhazor

Honorable
Apr 23, 2013
6
0
10,510


You mean I should go and detach every ram by single and see if same happens? Btw I have all 4 ram slots used, x3 512 and x1 1GB DDR1.