Solved BSOD Mostly on startups

[myko]

Specs:
Windows 7 64 bit retail
Custom Built
System is 3-4 years old
Age of OS installation: about 6 months

Motherboard: p5q3 deluxe wifi-ap @n
CPU: Intel Core 2 duo E7400
RAM: 4GB (2x2GB) - OCZ (I can check for exact memory module if needed)
Video Card: ATI Radeon HD 4800 Series
PSU: Corsair TX950W

My blue screens occur most frequently (approximately 99%) while I am booting up my computer. If it somehow gets to my desktop, many programs are not loaded up properly (windows explorer, antivirus, windows live messenger, etc.) and sometimes it even shows the windows xp-like desktop (not windows aero). In all cases, when programs fail to load, my computer will eventually blue screen. I learned from experience that doing a cold boot right after the blue screen will guarantee a successful boot.

I've been having this problem for the majority of the 3-4 years I've had this computer and I've upgraded my hard drive and my power supply and also I've RMA'ed my previous OCZ ram because of this issue and still has not fixed this problem. I've reinstalled windows many times and I still get the same blue screens.

I have a few suspicions about what is wrong, but I would like to hear an unbiased opinion from someone a little more experienced than me. Any help would be appreciated!

 

[yowanvista]

Seems like Memory Corruption, test your RAM
http://www.sevenforums.com/tutorials/105647-ram-test-memtest86.html

ASACPI.sys the 2005 version is a huge cause of BSODs

   Information

Please visit this link: ASUSTeK Computer Inc. -Support- Drivers and Download P7P55D LE
Scroll down to the Utilities category, then scroll down to the "ATK0110 driver for WindowsXP/Vista/Windows 7 32&64-bit" (it's about the 12th item down).
Download and install it.
Go to C:\Windows\System32\drivers to check and make sure that the ASACPI.sys file is date stamped from 2009 or 2010 (NOT 2005)

Update the Marvel Yukon Network driver http://www.marvell.com/support.html

yk62x64.sys        fffff880`06600000    fffff880`06665000    0x00065000    0x4ac07193    28/09/2009 12:19:31

ASACPI.sys        fffff880`03c0d000    fffff880`03c15000    0x00008000    0x42476c4c    28/03/2005 06:30:36

 

[myko]

I've tested it before, theres nothing wrong with it. I was thinking it might not be compatible with my current motherboard. Is there a way to find out? I tried looking for it but I couldn't find anything specific.

 

[yowanvista]

I've tested it before, theres nothing wrong with it. I was thinking it might not be compatible with my current motherboard. Is there a way to find out? I tried looking for it but I couldn't find anything specific.

Check the Memory QVL
ASUSTeK Computer Inc. - Motherboards- ASUS P5Q3 Deluxe/WiFi-AP @n

 

[myko]

Thanks for your quick replies.

I've done everything except the memtest (which i've ran before) and I'll have to wait until the next time it blue screens.

 

[myko]

I just started up my computer and I got another blue screen.

I checked to see if my RAM was compatible with my motherboard and I did not see it on the list you provided. Do you think this is the cause of all the blue screens?

 

[myko]

does anyone know whether or not ram compatibility can cause blue screens? if not, what else might be causing this problem?

 

[yowanvista]

does anyone know whether or not ram compatibility can cause blue screens? if not, what else might be causing this problem?

Incompatible RAM, incorrect RAM settings(voltages, timings) in your BIOS, bad motherboard

 

[myko]

my bsods have not showed up at all ever since I got compatible ram. thanks!