Hi, I have recently purchased a SL9K8 (Intel Pentium D 950 3.4ghz) CPU and am having problems when windows loads. My computer was running an Intel Pentium 4 530 with 4 x 512mb RAM. My motherboard is GA-8I865G775-G and from this link it says my mobo can support the new CPU: i cannot provide link as this is my first post but on the gigabyte website you can find my mobo sorry for the inconvinience. I am on the BIOS version F1 as is stated needs for it to use the CPU. After changing my CPU to the new SL9K8 the bios detects it, windows loads then blue screens saying it closed to stop damage to the system, the error codes start: STOP: 0x00000050 STOP: 0x0000008e STOP: 0x0000007e STOP: 0x0000000a can provide the full code within the brackets if needed. These obviously point to memory problems but i have used them in the same computer just with a different CPU for ages. I have tried booting with single ram sticks in but the same issue comes up. Could the bios just need updating to the F3 version on the website even thought i have the bios version they say supports it or do i need an update from intel. Or could it be something totally different? Help would be greatly appreciated. Thanks I have also run Windows Memory Diagnostic Tool and everything was fine.