Computer does't reach bios on reboot after crash

Hello all, I recently had another issue which was resolved (http://www.windowsbbs.com/showthread.php?t=67356)

Current computer specs:
AMD 64 X2 4200+
2 gig (2x 1gig) ocz platinum *currently running with only 1 of these sticks*
abit kn8 sli motherboard (nforce4)
evga nvidia 7800gt
2x 37gb raptors in raid 0
asus dvdrw drive
Coolmaster 650w power supply
netgear wpn311 wireless network card
logitech usb mouse/keyboard/gamepad


I replaced power supply and added two memory sticks and the system was running perfectly for about 10 days with no errors.

Suddenly I received a screen that looked similar to this.
http://i12.photobucket.com/albums/a225/NYankz/screen.jpg

I was like w t f and powered the system down, assuming I just needed to reboot. When I powered the computer back on the monitor stayed in standby mode and the computer wouldn't even get up to the bios.

I unplugged computer and removed battery to clear bios, I also re-seeded my graphics card and removed the dedicated power supply to the graphics card. I also took out one stick of memory before the computer got up to the bios screen. I was then able to get into windows without a problem.

I then did a soft shutdown of the computer so I could re-attach memory and power supply to my graphics card thinking the issue was resolved. With these attached the computer then repeated to not reach the bios screen and would not bring the monitor out of standby.

After clearing bios again and removing memory stick again, I was able to get the computer running with just 1 stick of memory and the graphics card fully powered.

=======

ok so at this point I'm a bit stumped. Obviously the computer doesn't like the memory configuration, but I'm confused as to why it worked for 10 days without any issues. Is this just bad memory? or might there be an issue with the motherboard or graphics card as well? The memory stick that went corrupt was in the primary slot, this was also the case with the last pair of memory which I had (the stick in the main memory slot got corrupted so I got 2 new memory sticks). Is it possible that the motherboard is bad and corrupting the memory? The systems currently running fine on 1 stick of ram, but I'm kind of afraid to restart it fearing that I'll need to open it up again and clear the bios to get it to post.

What steps might I take to single out what the issue is here?

Thanks for any help,
Mike

 

Just a thought: when solving problems, simplify, simplify, simplify. Personally would not just remove non-essential hardware, but also eliminate raid. Then try two sticks of identical memory (a so-called KIT), and run for a couple weeks before trying a new step.

If that still has problems, I'd consider a new MoBo.

BTW, u haven't mentioned beeps. Your case speaker should be connected so the bios can tell you what it thinks is wrong.

 

Hi
I have an Abit KN9-SLI. Check the motherboard manual for settings for using single or dual graphics cards. I also use a single graphics card and I needed to change settings in the BIOS because the default settings were for dual cards. Each time you clear the CMOS, you will need to remake those settings.

Matt