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Windows 7: BSODs - Motherboard or PSU?

27 Apr 2010   #21
smarteyeball

 
 

Quote   Quote: Originally Posted by Chrheff View Post
Hello,

I checked the motherboard and there's no sign of any problems with the capacitors. The fact the RAM is failing in the 2,4 slots, though, means it might be the RAM as well, since I originally figured it wasn't because it would function there. In memtest86, the same area on the RAM fails each time - 960.2MB. Sort of dumb to only point this out now, but it's been a while since I've gone back to memtest testing. I can't remember the exact addresses but there're two that seem to have problems.

Next time it crashes I'll let it sit unplugged, but I'm going to run it on each stick individually for a few days and see if it crashes.
It could indeed be the RAM after all - is the failing address always in a particular test# ?



Quote   Quote: Originally Posted by Dwarf View Post
It's going to take some time, but when you run it on one stick, don't forget to repeat the test with the stick in each slot.
As tedious as this process is, it is one way of ruling out the RAM.


My System SpecsSystem Spec
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29 Apr 2010   #22
Chrheff

Windows 7 64 bit Home Premium
 
 

I put in the new PSU, but it looks like it hasn't fixed things, so I guess it's time to start looking into a new motherboard.
My System SpecsSystem Spec
05 May 2010   #23
Chrheff

Windows 7 64 bit Home Premium
 
 

The new motherboard is in and the system seems stable. Guess that was it.
My System SpecsSystem Spec
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05 May 2010   #24
JMH

Win 7 Ultimate 64-bit. SP1.
 
 

Quote   Quote: Originally Posted by Chrheff View Post
The new motherboard is in and the system seems stable. Guess that was it.
Sounds good.
Shall we consider this thread closed?
My System SpecsSystem Spec
13 May 2010   #25
Chrheff

Windows 7 64 bit Home Premium
 
 

Nope, wasn't it. Had a crash after two weeks of stability. I guess it's down to reformatting the hard drive, RMAing the RAM, or just calling it quits.
My System SpecsSystem Spec
13 May 2010   #26
Crispy

Windows 7 Ultimate x64 Service Pack 1 (Build 6.1.7601)
 
 

If you are going to format the HDD use Active@ Kill Disk Hard Drive Eraser. Low Level Format. and do a low level format and delete all partitions.
My System SpecsSystem Spec
13 May 2010   #27
ickymay

win7 ultimate / virtual box
 
 

this has all the hallmarks of bad ram
My System SpecsSystem Spec
13 May 2010   #28
Chrheff

Windows 7 64 bit Home Premium
 
 

The problem is memtest wasn't catching errors consistently. If I power off the system completely for a few hours, it stabilizes for a few days before crashes resume, and in that time I don't detect any memory errors on memtest86. I figured if it was the RAM, memtest would consistently detect problems rather than the random stuff I'm dealing with now. Still, not many other options at this point. I'm going to borrow some RAM from a friend first I think.
My System SpecsSystem Spec
14 May 2010   #29
ickymay

win7 ultimate / virtual box
 
 

Quote   Quote: Originally Posted by Chrheff View Post
The problem is memtest wasn't catching errors consistently. If I power off the system completely for a few hours, it stabilizes for a few days before crashes resume, and in that time I don't detect any memory errors on memtest86. I figured if it was the RAM, memtest would consistently detect problems rather than the random stuff I'm dealing with now. Still, not many other options at this point. I'm going to borrow some RAM from a friend first I think.
memtest won't in fact there isn't a totally definitive ram test that ever stresses and uses the ram like an O/S will ........

to quote since windows 95 Microsoft have stated about memory testing programs
Quote:
Defective memory chips may not be detected by memory checking tools. Some memory checking programs are not adequate tests because they do not test RAM in the same way that Windows uses RAM. Most memory checkers use read/write cycles when scanning memory. Since Windows is executing code from memory, it uses execute cycles. Execute cycles are different from read/write cycles and are more vulnerable to parity errors. It is possible for memory checking programs to find parity errors if the memory is extremely faulty.
so bottom line is changing the hardware component is the best way of totally isolating it as a fault
My System SpecsSystem Spec
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 BSODs - Motherboard or PSU?




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