Is that a single Radeon 4870 X2 or is it two Radeon HD 4870's? If it's two, have you removed one to see if things run fine with drivers using only one card?
You have 3 crashdumps with 1 dated allll the way back in Jan 2010, yet the timestamps for the modules (drivers) are new. I've personally only seen this caused by either a CMOS issue (which is altering your system clock), a BIOS issue (your BIOS is
dated 01/18/2010, sure there's no update?), or using an illegal copy of Windows. I guess it could also be due to crashdump corruption but I doubt it since no other errors were presented when loading it.
Just to be absolutely sure, first run this
. If you have the option to RESOLVE do so. Then proceed to the Windows
tab and click Copy
then paste it here.