Hi,

I am getting random BSOD in my windows 7 x64. Can anyone please help? thanks.
PFA for minidump files, thanks.

Hello.

Follow these directions, please http://www.pchelpforum.com/xf/threa...se-read-before-posting-in-this-section.27453/

Hi,

Thanks. Already packed them.

You have a number of memory corruption related crashes.

Code:

060612-25568-01.log
Debug session time: Wed Jun  6 04:43:19.065 2012 (UTC + 2:00)
System Uptime: 0 days 1:06:12.361
PAGE_FAULT_IN_NONPAGED_AREA (50)
Arg1: fffffa80fa803768, memory referenced.
Arg2: 0000000000000000, value 0 = read operation, 1 = write operation.
Arg3: fffff880085ca081, If non-zero, the instruction address which referenced the bad memory
Arg4: 0000000000000005, (reserved)
IMAGE_NAME:  athrxusb.sys
PROCESS_NAME:  System
DEFAULT_BUCKET_ID:  WIN7_DRIVER_FAULT
FAILURE_BUCKET_ID:  X64_0x50_athrxusb+68081
fffff880`0914b888 fffff800`036fab91 : 00000000`00000050 fffffa80`fa803768 00000000`00000000 fffff880`0914b9f0 : nt!KeBugCheckEx
fffff880`0914b890 fffff800`0367afee : 00000000`00000000 fffffa80`078ccb60 fffffa80`078ccb00 fffff880`0160f695 : nt! ?? ::FNODOBFM::`string'+0x40f5b
fffff880`0914b9f0 fffff880`085ca081 : fffffa80`06b88030 fffff880`0914bba8 00000000`00000022 fffff800`036861af : nt!KiPageFault+0x16e
fffff880`0914bb80 fffffa80`06b88030 : fffff880`0914bba8 00000000`00000022 fffff800`036861af ffff000a`00000022 : athrxusb+0x68081
fffff880`0914bb88 fffff880`0914bba8 : 00000000`00000022 fffff800`036861af ffff000a`00000022 96700000`96720021 : 0xfffffa80`06b88030
fffff880`0914bb90 00000000`00000022 : fffff800`036861af ffff000a`00000022 96700000`96720021 96700000`96720084 : 0xfffff880`0914bba8
fffff880`0914bb98 fffff800`036861af : ffff000a`00000022 96700000`96720021 96700000`96720084 96700000`9672008b : 0x22
fffff880`0914bba0 fffff880`00000670 : fffffa80`00000012 00000000`00000000 00000037`00000400 fffff800`00000500 : nt!KeWaitForSingleObject+0x19f
fffff880`0914bc40 fffffa80`00000012 : 00000000`00000000 00000037`00000400 fffff800`00000500 fffffa80`07d16030 : 0xfffff880`00000670
fffff880`0914bc48 00000000`00000000 : 00000037`00000400 fffff800`00000500 fffffa80`07d16030 00000000`00000001 : 0xfffffa80`00000012

This crash points to this driver

Code:

45BDEF26 2007 Jan 29 13:57:10 athrxusb.sys *** Atheros Wireless LAN USB device driver --> http://www.atheros.cz/

which is a rather old USB wireless adapter driver. You should look for updates for your wireless adapter device, based on its exact model. If you can't find one, you should uninstall this device and use a cable connection for the time being, while we work on your problems.
On second examination, I see you have already removed that device.

Also, you seem to have some sort of a malware installed as there is one driver loaded with a randomly generated filename. This is very suspicious behavior, I suggest you scan your computer with free Eset online scanner http://www.eset.com/us/online-scanner/
This is sometimes best performed in safe mode with networking.

There are a few suspicious looking drivers

Code:

4D90AC45 2011 Mar 28 17:41:57 aaaqxgna.SYS <-- this one randomly changes its filename
4DD4C9EE 2011 May 19 09:42:38 AxtuDrv.sys <-- this one may relate to program called RW-Everything, have you used a program like that at any time?
4E53E437 2011 Aug 23 19:32:39 ISCTD64.sys
4EB847F0 2011 Nov 07 22:04:48 WPRO_41_2001.sys

I suggest you scan your PC asap following the above described steps.

Hi mkey,

Thanks. Will do the scanning.
As for the memory, my memory runs prime95 blend 8 hours without errors.
The BSOD symptoms started when I installed realtek sound driver which is not exactly for my new realtek sound card.

As for the wireless adapter, yes, I did removed it to avoid BSOD, there is some driver incompatibility in windows 7 64 bit.

As for AxtuDrv.sys, I would assume that this is the driver comes with Asrock Z77 motherboard packed with the Asrock Xtreme Tuning Utility (AXTU), but I don't OC anything, everything left as default.

memtest86 is a more thorough memory tester.