Is there a issue with B2 Phenom's memory controller? Whenever I add 8GB of ram (all same brand and speed Crucial 6400 4 x 2gb sticks), I get BSOD (PageFault_in_nonPagedarea, Disk.sys etc) when ever I open an application that accesses mem settings like HWMonitor, CPUZ. More prominently VMWare. If the total virtual boxes memory is below 6 GB I don't get BSOD. If its more then boom. How I found this? I was struggling with my new server for last week or so (along with my broken back). I had this spare Phenom 9500 and thought I will put it on a server and play with VMWare. My aim was to fill in all 4 slots with 2GB sticks each to get 8GB. I can install any OS with 8GB system mem (W2K3 32/64, XP 64). but moment I do the above then dies. If I put 2 x 2gb + 2 x 1gb it works perfectly. Same goes with 3 x 2gb. The moment I add 1 more GB then dies. So Last night I bought a Phenom 8450 and installed and all the problems described above went away. No issues till now, but have to test more. Boards used Asus M3N78-VM, Gigabyte some 780G new version one then older ECS A770M board. Out of which the ECS is the damn good and cool running one, followed by Gigabyte. Asus is shit. So is this related to the B2 TLB? The 9500 is a retail kit and I hope AMD will give me a replacement. Anybody else have this kind of issue?