Windows 7 64bit BSOD Problem

sonavor said:

With the current BSOD (I'll call it the "Quick One") there is no minidump file written. The BSOD occurs when the Windows 7 logo is displayed on the screen - immediately after the PC boot bios information. The Windows 7 login page has been rendered yet. So I think there is some glitch that occurs preventing anything from happening.

I did have Raxco Perfect Disk setup to defrag the drives so I disabled that. If the problem persists I am going to put my Windows 7 "C" drive on its own physical diskdrive (with just one partition) and see if that fixes the problem.

As for the memory, I will try and run a lengthy test using memtestx86. However, I really don't think it is causing my current problem. I have been running the PC for several hours now with some memory intensive applications and I never get a BSOD.

We actually need the DMP files created in the crash. use these to find and upload to us. https://www.sevenforums.com/crash-loc...d-problem.html

thanks

Ken

The only location on my PC where I have found the DMP crash files is at:
C:\Windows\Minidump

The only DMP files there are from my two BSOD incidents that happened after I logged in to Windows 7. Those dates were 4/2/2010 and 4/16/2010. The latter DMP file is the one I uploaded on this thread.

Since that time I have not had any BSOD incidents after logging on to Windows 7. I have had three or four BSOD incidents during the Windows 7 startup (prior to the login screen). There are no DMP files on my machine for those BSOD events. I don't know why but there aren't but there aren't any.

Meanwhile, I have continued on with my system memory testing as suggested by an earlier posting in this thread.

I found something interesting in my memory testing (morning of 4/19/2010). After letting the computer sit powered off over night, I started it up and immediately started with the memtest86(+) instead of trying Windows 7.

On test 5 my memory block from 4000 to 6000 (rounded) failed. So I immediately thought this was it. To further test it I pulled out the memory stick (I have four two GB RAM sticks) in the third slot. I ran the test again - up through test 6. There were no errors. To double check I put the RAM stick I took out back in to slot 3 and removed the slot 4 RAM stick. I re-ran the memory test but nothing failed up through test 6. I tried a few more tests, trading out the RAM sticks from slot 3 and slot 4. I could not get any failure again.

I decided to see what would happen if I took out the memtest86(+) disk and let the machine start up Windows 7. It started fine and I am still running the PC twelve hours later.

Now my questions to resolve are these -
1. Was the RAM test error due to a bad test run?
2. Is the RAM bad? (and is it causing the BSOD on start up?)
3. Is the problem temperature related since I haven't seen the error after the machine gets into Windows 7 (or after the memory test has run a while)?
4. Could the problem be with the motherboard (like maybe a bad memory slot)?

When I power down my PC tonight I will leave the slot 3 empty and put the suspect RAM stick in slot 4. When I start the PC up cold in the morning I will run memtest86(+) again. If the RAM stick is bad I should see a failure in the slot 4 RAM. If I don't get a failure then I will suspect the motherboard slot 3 RAM connector and setup a test for that.

Thanks for the RAM voltage suggestion. I talked to an Asus technician and he also suggested that. I am trying out a higher voltage now. The real test will be in the morning after the machine has been idle for an extended period of time. I turned it off for about three hours today and ran the memory tests with the higher DRAM voltage and didn't get any errors. However, I don't know if that was a long enough time to say the problem is fixed.

FYI - The Asus technician is also having me check the system voltages using the bios on start up so I can eliminate any power supply problem. As for the DRAM voltage - the voltage was originally set to "Auto". The bios showed that voltage measuring around 1.54v. I check my G.Skill RAM specs and saw that it is supposed to be able to handle 1.6v without any danger. So I am currently running with the DRAM voltage setting at 1.6v.

NOTE:
Since I have been verifying the RAM using memtest86(+) and doing the voltage change I haven't had any Windows BSOD events.

Well, leaving the machine off overnight then restarting and running memtest86 this morning resulted in the RAM failing at the same place: Test 5 (Block Move, 80 moves). So the DRAM voltage setting at 1.6v didn't help. A support guy from G.Skill told me to send my RAM in to them for replacement so I will do that.

I believe the Windows 7 BSOD in my case can be put down as a PC memory hardware problem.

Note: I am on the PC and in Windows 7 writing this message. After the failed Test 5 memtest86, I rebooted and ran the test a second time. As usual it passed the second time. Once the RAM test passes I can always continue on and login in to Windows 7 without any BSOD.

sonavor, I am also having the same problem as you. My motherboard is also the same as yours (ASUS P7P55D-E).
I have just clean installed windows 7 sp1 and I have had several BSOD incidents during the Windows 7 startup (prior to the login screen). The problem only occurs after the computer turns off for a long period of time (overnight).
sonavor, have you ever found any solutions for the problem?
Thank you.