Subject: Help Please!
By: HovisUk (IP: 193.195.7.*)
Written on: 09-11-2006 11:47
Please could someone help advise on my cooling setup.
The current situation is:-
I have a pc (Advent, P4 2.8Gz, Win XP home ed.) bought around 4 years ago from Pc World (i know, pc world..). I used to use it for playing games but now its pretty much surfing the net, downloading stuff and converting files for use on my PSP.
Recently the pc started turning off randomly, no warnings/BSOD etc., just bang no power.
After trawling the net for help ive decided its likely to be either a) the memory b) overheating or c) who knows.
I tried checking using memory testers but the pc always turns off halfway through.
So i looked into and using speedfan found that as the pc is processing the 3 temperatures reported rise to approximately 29C, 100C and 125C respectively.
Doesnt sound too good to me, so ive tried checking the BIOS for max shut off temps and cant access it (just skips it on bootup).
So im back to where i started, but i decided to try and cool the pc down. Opening the case the inside was covered in dust, so ive cleaned that out and removed the fans and cleaned them. One is worn and needs replacing (processor fan).
Unfortunately i cant remember which way the case fan was blowing!
My setup is, 1 Power supply fan (exhaust), 1 case fan (unknown), 1 duct from power supply fan to top of processor fan (seems to be intake).
I removed the processor fan from the heatsink and the top surface of the heatsink is covered in grey dry powder (i.e. the surface that the fan rests on). Is this some sort of thermal compound? Do i need to clean and replace when installing a new fan?
Ive also managed to get the heatsink off (it was clipped down securely) so i presume i need some thermal compound for the bottom? (where it attaches to the processor). Do i need to clean both surfaces first, if so, what with?
Please could someone advise on the above (i.e. fan direction, use of thermal compound on top and bottom of heatsink). Sorry for the essay, i am new to case cooling and ive only opened it to install a graphics card and dvd writer in the past!
Thanks in advance