BSOD when playing games BCCode:1a, New(ish) build, clean install

Hi Guys,

Hoping you can help me as I'm at my wits end with my girlfriends computer.

I recently built her this PC with second hand parts from my old PC, new parts are;
HDD
SSD
Case + fans
RAM
Fresh install of win7 professional* more info further in

Old parts are;

MOBO
CPU
Graphics card
PSU

Custom Build
Windows 7 professional 64bit SP1
Intel i5 2400 @ 3.10 GHz
Asus P8H61-M LE/USB3 (LGA1155)
8GB Dual-Channel DDR3 @686MHz (9-9-9-24)
GeForce GTX 650Ti
SANDISK SSD SATA III 2.5 128GB
SEAGATE 7200 1TB 6GB/S
750w generic PSU

While playing games she crashes after roughly 5-10 minutes, so far this has occurred with Dying light and Smite. She has not received a crash while browsing.

Every so often the crash results in a BSOD (.dmp files attached)

Graphics drivers are up to date as verified with device manager and on Nvidia's website.

So far I have ran Windows memory diagnostic with no results and chkdsk (logs attached) and the crashes persist.

I'm going to run Memtest86 overnight to see if that picks up anything - however the RAM sticks are brand new!

*After building the PC it was accidentally restarted during a windows update installation causing a corrupt install and therefore being unable to boot. This was fixed by reformatting the drives with the windows install disk and re-installing.

The PSU fan is a bit noisy so that's my first guess however I wanted to get some professional insight before I start spending cash to fix the problem.

Thanks in advance!

Edit: This system was stable when I was using it before I upgraded it with new hardware. Her BIOS is out of date version 9901, I don't have the time to update it tonight but I'll try and get to it tomorrow after work.

Edit** Starting running Memtest and have attached a picture of it, looks like there is a ton of errors, will post final results 10 hours or so. :)

You can stop the memtest, you may have found your answer. I will look at your dump files and get back with you.

Please upload the BSOD Posting Instructions https://www.sevenforums.com/bsod-help-support/96879-blue-screen-death-bsod-posting-instructions.html. Upload the files here, this will tell you how. https://www.sevenforums.com/tutorials/9733-screenshots-files-upload-post-seven-forums.html

All 3 of your dump files were the same.

Code:

MEMORY_MANAGEMENT (1a)
    # Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 0000000000041790, A page table page has been corrupted. On a 64 bit OS, parameter 2
 contains the address of the PFN for the corrupted page table page.
 On a 32 bit OS, parameter 2 contains a pointer to the number of used
 PTEs, and parameter 3 contains the number of used PTEs.
Arg2: fffffa8003c21660
Arg3: 000000000000ffff
Arg4: 0000000000000000

While it is very likely you have bad ram, it is prudent to check the motherboard Dimm Slots also. Take all but 1 stick of ram out and run memtest86+ with the stick in every ram slot. Keep track of which stick and the results in each slot. A bad stick of ram should show errors in every slot. If you get it passing in 3 slots and failing in 1 slot, it is most likely the Motherboard Dimm Slot is bad. Trust me, it does happen. If it helps you, these are the instructions I usually give for memtest86+, and which test you run is very important.

Please Run Memtest86+

   Information

Please download from this site only http://www.memtest.org/ in the middle of the page are the Download links, you can download the ISO.zip or the Auto USB Flash Drive installer.zip

Extract the Zip file. If you chose the ISO image, burn it to a CD using Windows Disk Image Burner or any Image burner you may have. If you downloaded the Auto USB installer, extract it, insert your USB 2.0 Flash Drive and take note of the drive letter. Run the installer, select the Flash Drive Letter, check the format box and press next. It will install memtest86+ to a flash drive. You can use either V4.20 or V5.01. Boot from your selected media. If you use V5.01 it will tell you to press certain buttons at the start, please press no buttons. The test will begin on it's own and continue to run until you stop it. It needs to run for 8 complete passes or until you receive an error. If you receive an error, stop the test. Even 1 error is a fail. Each pass tests a different part of the ram and each of the 10 tests in each pass tests something different. It takes a minimum of 8 passes to completely test the ram, more passes are better. It is quite a long test and will take several hours depending on how much ram you have. Due to the time length it is best to run overnight. If you have any questions, please do not hesitate to ask

If you get any error, you can stop the test. Even 1 error is a fail. There is no reason to keep running the test at that point.

Most likely the cause. I would send them both back and get a kit in return. A kit is tested to work well together. Individual sticks a re not.

You're very welcome. Please let us know the outcome.