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Pro help needed: Weird computer problem!!!

Ironmonk

Active member
Joined
Jul 21, 2008
Messages
38
Hello there. I am experiencing some weird problem with my brother's computer. He has had it for a year without any problem, and now, all of a sudden, he has this problem:

After closing his computer, it wouldn't reboot; it fails during the windows vista x64 loading. 1 time out of 20 attempts, he could get into safe mode. But there, he told me that the computer recognised new hardware and that the OS was asking to perform motherboard updates?? (i cannot verify this).

To fix this problem, i decided to reformat his computer on fresh windows vista x64 ultimate. But the problem somehow still persists:

at the point where u need to reboot ur computer during the OS install, the computer reboots and past that, it cannot resume the installation since it fails during the windows loading (boting phase with the status bar).

His comp specs:
-Intel DG965WH mobo ( i did a bios update in august so it recognises 4gb of RAM ...it worked fine, until pc started failing windows loadings on october 12th)
-2x1gb Kingston memory pc6400 800mhz
-2x1gb Corsair memory pc6400 800mhz
(Memory is installed properly, dont worry!)
-Intel E6600 processor
-Antec 500W PSU that came with the tower (Eatx case)
-EVGA 8800GTX video card
-A single 250gb harddrive
-Soundblaster audigy 2 zs soundcard

Ive tried to reset bios settings to factory defaults, and turned off the onboard soundcard. Reinstalled windows vista x64; still crashes after the reboot in the installation process (cant continue the installation).

Ive tried to install with only 2gb of ram, samething happened.

Ive built a couple PC's in the past and im usually proefficient at troubleshooting. However, I cannot identify the problem here.

Is it perhaps a faulty motherboard? (thats what i assume).
I dont think its the PSU since it always crashes at the same moment.

No overclocking was done on this computer (i dont even think u can OC on an intel board).
 

DK2

Well-known member
Joined
Apr 17, 2008
Messages
813
Location
GTA
try it without the soundblaster, maybe a driver problem there???
 

bojangles

Well-known member
Joined
Jan 30, 2008
Messages
2,663
Location
Oakville, ON
Try installing with only 1 stick of RAM. Even 2 sticks can cause problems. Also, like DK2 mentioned, take out the soundcard, and any other things that aren't needed. Pretty much the only things you need are:

DVD Drive
Hard Drive
Monitor
Motherboard/CPU
Keyboard/Mouse

In your case, since your motherboard has G965 chipset, try using the integrated graphics instead of the 8800GTX (enable it back in the BIOS and take out 8800GTX from computer). Keep everything to a minimum and add stuff for process of elimination. It could be anything....
 

Tazer-[X]

Well-known member
Joined
Jul 8, 2008
Messages
555
Location
Terrace, BC
sounds like mobo is messed. The only way to know is to pull the whole thing apart and rebuild incrementially until unstable. Like the good ole days of troubleshooting.
 

CMetaphor

Quadfather
Joined
May 5, 2007
Messages
5,081
Location
Montreal, Canada
My assumption would be a leaking capacitor or swollen capacitor on the motherboard. Check if you see any standard electrolytic capacitors that aren't perfectly flat on top. You can identify these capacitors because they have a "K" or "Y" pattern on their tops. See pictures:
Electrolytic capacitor example:


Solid Capacitors (Don't worry about these):
 

Ironmonk

Active member
Joined
Jul 21, 2008
Messages
38
your running two types of memory..

big no no
However the comp used to be perfectly stable with these 2 memories in the past months.
Ill check for capacitors once i get time, also will rebuild incrementally.
 

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