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Windows 7: several BSODs after running for <1hr


29 Sep 2012   #1

Windows 7 Pro 64bit
 
 
several BSODs after running for <1hr

Hello all and thanks in advance for any help. I built this system about four years ago (with a few upgrades along the way) and it's been very, very stable until recently. For about the past two weeks, I've been getting frequent BSOD's- mostly 1a, 3b, 7e, 7f. Tends to happen after the system has been up for a little while and can happen in something hefty like Skyrim or something light like Word. I've already looked into to drivers, cleaned out the case, remounted the CPU, remounted the RAM chips. Also bought a couple of new sticks but that made no difference- still lots of crashes. Ran memtest86 on each pair of 2GB sticks and all of them showed up with errors, including the new ones. Not really sure what to think at this point other than maybe a new mobo? See attached info; short version of the system is Win7Pro 64-bit, Phenom XII 940, 8GB, nvidia GTX260, ASUS m4n78pro motherboard.


My System SpecsSystem Spec
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30 Sep 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64Bit
 
 

Welcome

Bit Defender antivirus is known to cause BSOD on some systems.

Suggest you to uninstall it.

Many of us recommend Microsoft security essentials with
a great combination of Malware Bytes.

Microsoft Security Essentials - Free Antivirus for Windows

Let us know if the stability returns. We'll do more troubleshooting if required.
My System SpecsSystem Spec
30 Sep 2012   #3

Windows 7 Pro 64bit
 
 

Thanks for the tip- will do. FYI, the system was stable last night. The only thing I changed was lowering the DRAM freq manually. Was at 800 b/c of auto settings and the RAM sticks were theoretically capable of it but it's running well now at 667.
My System SpecsSystem Spec
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30 Sep 2012   #4

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium 64Bit
 
 

Oh okay..

Let us know if the BSOD problems persist.
My System SpecsSystem Spec
Reply

 several BSODs after running for <1hr




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