I am hoping someone can help me out. I recently built a new rig with the following specs: Intel Core I7 2600K 8 GB Corsair 10366 RAM Nvidia GTX 570 Asus P8z68 v pro/gen 3 Corsair Force GT 570 SSD drive. Windows 7 Ultimate 64 bit for the o/s. I have been getting random bluescreens since the install, but it only happens maybe twice a week. I have the latest drivers/BIOS installed. I have ensured that both the BIOS and O/S are running in AHCI mode. The last BSOD was IRQ less or equal. It happened again while playing Mass Effect 3, and this time I was really frustrated as I had missed out on 20 minutes worth of play time. I googled for the problem and it was suggested I run the driver verifier. I ran that, and rebooted like it requested, and the system was really sluggish when it came back up. I attempted to run ME 3, and the program would stop responding, and if I tried launching NBA 2k12 I would get a hidclass.sys BSOD and reboot. I couldn't get past this until I did a system restore to last night. This tells me it probably is a driver error. Am I correct in assuming this? If so any idea how to fix this problem especially since driver verifier seemed to totally crash my O/S when it ran?