Okay so my gaming rig's fans would occasionally boost up to max speed for less then 5 seconds and calm back down when playing certain games. This gradually became more frequent so I presumed it needed a can of air and new thermal paste applied.
I ordered the stuff needed and within a day the issue got worse. The pc seemed unusually sluggish and the fans were boosting to max just simply turning the pc on and sitting at the desktop screen. I had been checking the temperatures throughout the problem and all was reading normal. I decided to leave the pc off until the stuff arrived.
A week later I used the can to remove dust, cleaned off the old thermal paste and applied the new, using all precautions.
I went to boot the pc up, the fans started but there was no display on the screen and no power to the usb ports. After about 20s the fans started going at max again and the pc would switch off. I heard the issue could be a faulty psu so I hooked the different one up and still the same issue.
I then removed all ram sticks (4) and the computer beeped. After messing around I concluded that all ram sticks were fine there was just one ram slot not working preventing the pc booting up. I tried again this time with the one empty ram socket and it managed to connect to the monitor and get power to the usb ports. My celebration was short lived when the bios screen flashed off quick to reveal a black screen with a white flashing underscore in the top left corner.
I tried a number of times to access the bios options but the pc just ignores my attempts. I also tried booting with windows 7 disc that came with the pc, still nothing. As soon as pc turns on the fans will go in hurricane mode.
I also tried removing the coin battery for a few mins and using the jumper pins.
I'm no expert at this stuff (quite the opposite actually) but I was under the impression it could either be a faulty processor or the motherboard has partially died. I'm not sure about the motherboard because once the ram from the faulty socket was removed it was able to beep again.
I've had the pc for about 2 years, only issue I have had with it is it would occasionally blue screen and restart itself. This would happen 3-4 times a week. Funny enough time leading up to this new problem I had no blue screen crashes.
Specs I can remember off the top of my head;
Pc is an alienware aurora r4
x2 Nvidia GTX 690 graphics cards (might be slightly earlier model)
Sorry for the lengthy post but I didn't want to leave crucial details out.
Hope someone can help!
Edited by hamluis, 11 July 2014 - 10:58 AM.
Moved from Win 7 to Internal Hardware - Hamluis.