crash problem

[entourage133]

i just got 2 new video cards, 2x sapphire radeon vapor-x hd5870s. ever since i got the new video cards my comp has been freezing during games. there is no exact time in which it freezes, the times varies. previously i had 2xradeon 4870s which ran perfect. would rarely if ever crashed during a game. SOMETIMES when the comp freezes i get a minidump file from windows and sometimes i don't. probly about 75% of the time that the comp crashes i dont get 1. heres the minidump and the sys data from the few times it does crash. thx in advance for any help

 

[yowanvista]

All dumps blame a hardware error, possibly your graphics card which could be faulty/overheating
Test your HD5870 separately, one could be faulty

This was likely caused by the following module: hardware
Bugcheck code: 0x124 (0x0, 0xFFFFFA8004CD58F8, 0x0, 0x0)
Error: WHEA_UNCORRECTABLE_ERROR