Hi ive just put a new MB, CPU, RAM + video card into my old case. The symptoms are that especially when doing an intense defrag of the partitions of the HDD the system freezes totally. HDD activity completely stops and after a minute every thing goes blank. AMD is not overclocked at all- totally at stock settings. Also freezes when running 3dMark 06 in Vista( every thing stock). Freezes when installing 2-5GB big games. Points to note: 1) Ram is not on recomended list - but am trying to get exchange from ebuyer.com. Ram 5300 speed 1 Gb cheapest on ebuyer. 2)Messed about the hardware a bit as i couldnt initially power on system- solved by connecting extra 4 pin power lead on MB. However while trying to solve that problem complete cleaned of good quality pre appled thermal paste form AMD stock cooler and applied my own. My own looks a very messy compared to pre applied paste. 3) Limited option of increasing CPU voltage in BIOS. As i understand AMD stock voltage is 1.35 v i think according to legitreviews ocing the amd. I would like to increase to at least 1.45v maybe 1.55v. 4) BIOS is American Megatrends V2.58 -not updated. How should i update this?? Have no floppy drive or USB flash drives. Just ipods and CDR or DVDR. How should i solve this problem??? Would also like to OC AMD if possible and VGA a bit more.