I have a problem, which i have been discussing in another section of the forums ( https://www.techspot.com/vb/topic94876.html ), but have been advised to post here in hopes of finding someone with the same or similar problem/solution. - First I will describe the problem, then i will summarize my attempts at a remedy. - The Problem. I have the following components, and they are not meshing well together. -AMD Phenom II x4 2.8GHz 920 CPU -Biostar TA790GX A+ MoBo -4x2GB G.Skill DDR2 1066 (PC2 8500) -VGA SAPPHIRE HD 4670 -RAIDMAX 530W PSU -1TB Hitachi SATA2 ----- After installing a fresh copy of Vista Home Premium, Updating the Bios, and installing all the most current drivers, I was getting the dreaded Blue Screen of Death. These BSOD's have occurred while the pc is idle(without a user), while I am using web browsers, running games, getting my vista score, etc. I see no pattern. - Remedy Attempts In order to remedy the situation, in the following order, I uninstalled the ATI Drivers, Realtec and NIC drivers. Used a cleaner in safe mode and reinstalled the most current drivers again from ATI and Realtek. This seemed to help, because the BSOD trailed off in their prevalence. But they were still there. - I reinstalled the Chipset drivers from Biostar's website, and the BSOD were occuring only once every 10-15 hours. Lastly, I installed the NIC and Audio drivers from Biostar, and the BSOD's have multiplied in their occurrence. (there is a more detailed explanation on the forum linked at the top) - Lastly, as I am writing this and checking my components on the Newegg invoice, I notice that even though my memmory checked ok with multiple memory tests, I may have memory that is in compatible with my board. (I should have done better homework...ugh) http://www.newegg.com/Product/Product.aspx?Item=N82E16820231226&Tpk=20-231-226 Can memory be made to work with only certain Chipsets? What makes it chipset specific? Timing? Voltage? - Any thoughts would be helpful. I will continue my troubleshooting by replacing the memory. I will also be checking back here for suggestions, or even replies by others that have built a rig with the same cpu mobo combo, so that i know it is possible. thanks again, this is a great forum!