need bsod help please!!

[otG]

Problem signature:
Problem Event Name: BlueScreen
I keep getting bsod with my new build,

mobo: GIGABYTE GA-990FXA-UD5 AM3+
cpu: AMD FX-9590 Vishera 8-Core 4.7GHz Socket AM3+
gpu: nvidia gtx 285
ram: 4 gig pny 1333mhz
hd: two ocz 64gig in raid 0 for os and 1tb seagate for mass storage.

I have fresh everything installed updated bios for mobo, graphics drivers. but my computer will be running fine. but if i try playing any games it will run fine for anywhere between 5 mins and 30mins and i will get a bsod. I have had them say memory management the most and once with the bad pool thing.

I have tried bumping my dram voltage up on the ram to see if thats the problem, i know i have very little ram in here next purchase, but would just the one 4 gig stick be the main cause of the problem being so little, and everything else being so powerful?

Thanks to any help in advance.

this is the windows error i get on reboot

OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033

Additional information about the problem:
BCCode: 1e
BCP1: FFFFFFFFC000001D
BCP2: FFFFF80002E755DD
BCP3: 0000000000000002
BCP4: FFFFFA800AC37000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 256_1

Files that help describe the problem:
C:\Windows\Minidump\030415-12823-01.dmp
C:\Users\otG\AppData\Local\Temp\WER-15958-0.sysdata.xml

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[johnbl]

you need to install windows 7 sp 1+ updates in order for a current graphics driver to work and not cause a bugcheck in old windows code. Many of these bugs were fixed 5 years ago.
Note: you might go longer between bugchecks on windows 7 RTM build 7600 if you turn off any screen saver and desktop background image updates.