Multiple BSOD's on new machine

I'm running a bit late for work, but here's what I have so far...
Rift isn't an issue, especially since it doesn't always occur. Rather it's likely to be a piece of hardware that Rift uses - just like the other processes.

Don't forget to turn Driver Verifier off.

Driver Verifier points at Pool Corruption as the cause. Since it doesn't name a 3rd party driver (that's what the settings are used for), then it's likely that a 3rd party driver isn't at fault. But since it crashed anyway, there must be another cause.

The most common cause is hardware, with the next most common being Windows (and malware).

The easiest thing to rule out would be Windows - but that'll require a wipe of your hard drive and a reinstall of Windows.

Instead of that, I'd first suggest these free hardware diagnostics:

I suggest starting all troubleshooting with the following diagnostic tests. They'll save you a lot of time and heartache if there is a hardware failure, and you'll have the disks on hand in case you need them in the future:

H/W Diagnostics:
Please start by running these bootable hardware diagnostics:
Memory Diagnostics (read the details at the link)
HD Diagnostic (read the details at the link)

Also, please run one of these free, independent online malware scans to ensure that your current protection hasn't been compromised: Free Online AntiMalware Scanners (read the details at the link)

Then, if the above tests pass, I'd try these free stress tests:

FurMark download site: FurMark: VGA Stress Test, Graphics Card and GPU Stability Test, Burn-in Test, OpenGL Benchmark and GPU Temperature | oZone3D.Net
FurMark Setup:
- If you have more than one GPU, select Multi-GPU during setup
- In the Run mode box, select "Stability Test" and "Log GPU Temperature"
Click "Go" to start the test
- Run the test until the GPU temperature maxes out - or until you start having problems (whichever comes first).
NOTE: Set the alarm to go off at 90ºC. Then watch the system from that point on. If the system doesn't display a temperature, watch it constantly and turn it off at the first sign of video problems. DO NOT leave it it unmonitored, it can DAMAGE your video card!!!
- Click "Quit" to exit

Prime95 download site: Free Software - GIMPS
Prime95 Setup:
- extract the contents of the zip file to a location of your choice
- double click on the executable file
- select "Just stress testing"
- select the "Blend" test. If you've already run MemTest overnight please run the "Small FFTs" test instead. (run all 3 if you find a problem and note how long it takes to error out with each)
- "Number of torture test threads to run" should equal the number of CPU's times 2 (if you're using hyperthreading).
The easiest way to figure this out is to go to Task Manager...Performance tab - and see the number of boxes under CPU Usage History
Then run the test for 6 to 24 hours - or until you get errors (whichever comes first).
This won't necessarily crash the system - but check the output in the test window for errors.
The Test selection box and the stress.txt file describes what components that the program stresses.
More details on the use of this test: Torture test your CPU with Prime95

Two other video stress tests (may be more stressful than FurMark):
Video Memory stress Test - МИРNVIDIA / Утилиты / VMT
Artifact Locator - МИРNVIDIA / Утилиты / Artifact Locator
Sorry, but I don't read the language that this website is made in.

Another interesting test that just came to my attention: Download - OCCT Website english
USE AT YOUR OWN RISK - program doesn't have a whole bunch of safety features to protect you from yourself!

BSOD BUGCHECK SUMMARY

Code:

Loading Dump File [C:\Users\FUBAR\_jcgriff2_\dbug\__Kernel__\050911-25515-01.dmp]
Built by: 7601.17514.amd64fre.win7sp1_rtm.101119-1850
Debug session time: Mon May  9 21:57:02.250 2011 (UTC - 4:00)
System Uptime: 0 days 0:00:13.265
Probably caused by : Pool_Corruption ( nt!ExDeferredFreePool+f33 )
DEFAULT_BUCKET_ID:  VERIFIER_ENABLED_VISTA_MINIDUMP
BUGCHECK_STR:  0xA
PROCESS_NAME:  System
FAILURE_BUCKET_ID:  X64_0xA_VRF_nt!ExDeferredFreePool+f33
Bugcheck code 0000000A
Arguments 00000000`00000000 00000000`00000002 00000000`00000000 fffff800`02ee3015
¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨¨``
  
  

While waiting you can try the built in Windows 7 memory diagnostic (not as accurate IMO, but better than nothing): Memory Diagnostics Tool

Don't worry about the Hard Drive test yet, first you've gotta figure out which of the 3 sticks is spitting out the errors in MemTest86+ (see steps 6a through 10).

The most likely possibility here is that one of the sticks wasn't seated well and it caused the errors.

Just to be sure I'd run the following free stress test for 24 hours (using the BLEND test) to be sure:

Prime95 download site: http://www.mersenne.org/freesoft/
Prime95 Setup:
- extract the contents of the zip file to a location of your choice
- double click on the executable file
- select "Just stress testing"
- select the "Blend" test. (run all 3 tests if you find a problem with the Blend test and note how long it takes to error out with each)
- "Number of torture test threads to run" should equal the number of CPU's times 2 (if you're using hyperthreading).
The easiest way to figure this out is to go to Task Manager...Performance tab - and see the number of boxes under CPU Usage History
Then run the test for 6 to 24 hours - or until you get errors (whichever comes first).
This won't necessarily crash the system - but check the output in the test window for errors.
The Test selection box and the stress.txt file describes what components that the program stresses.
More details on the use of this test: Torture test your CPU with Prime95