BSOD on friends old PC

Help Please. Friend has been complaining about daily BSOD and I have no idea where to start. I hope I have included the necessary ZIP files for you . TIA



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Use !analyze -v to get detailed debugging information.

BugCheck 1A, {41790, fffffa8000998a30, ffff, 0}

Probably caused by : ntkrnlmp.exe ( nt! ?? ::FNODOBFM::`string'+338c6 )

Followup: MachineOwner
Bugcheck 1A is a memory management issue and can be caused by hardware faults (RAM), faulty system service and drivers. The dump file also reveals:
Windows 7 Kernel Version 7600 MP (4 procs) Free x64
This tells me that Windows is missing a critical service pack otherwise the above number would 7601.
You can download Windows Service Pack 1 here (in both iso and exe form)
If the service pack refuses to install then run the update readiness tool here:
Some drivers do need updating. The motherboard support page is here:
You'll notice up near the top of the page, next the the motherboard name are links to other versions of the same motherboard. It's extremely important you have the correct support page for your version or revision. The actual revision number is written on the motherboard itself so please check. (I'd also check the bios is up to date too)

etdrv.sys Fri Mar 20 02:59:06 2009: May be part of Gigabyte Tools Easy Tune 6 (incompatible with Win7) please remove if Easytune 6 is on the system.

If after making the above changes you still get the bsod then you need to test your RAM.
Windows does have it's own memory testing app but it can often miss errors and the best app for the job is Memtest86. The latest version of which can be found here:

To run Memtest86 you need to either burn a copy of it to disk or use a USB stick. If you look down the page you'll eventually find the latest version and it's associated downloads. If your burning to disk choose the pre-compiled iso zip. If your using a USB method then the corresponding download is the auto installer for a USB stick.
Once you have Memtest86 on the media you selected you'll then need to enter your bios and change the boot order so that the machine will boot from either the disk or stick you have Memtest86 on.
Run the test for at least 12hrs if possible unless it becomes clear that there is a issue. If there is a problem with the RAM you'll see the errors pop up in red so you can't miss them.

Post any new dump files.

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