I built a machine last summer with M2NPV-VM, 2 GB of memory (2 * Kingston\n1 GB, PC2-667) and an Athlon X2 4200+. I had problems to get it to work\nfirst, but I got tips from this newsgroup to reduce memory speed and got\nthe system working decently. Except that when I requested a reboot from\nWindows XP, the machine would fail to initiate the boot sequence and\npower off.\n\nToday, I downlaaded and flashed the latest BIOS version, 0705. The good\nnews was that I was now able to run memory at full speed. The reboot\nproblem remained, though. The only difference was that now the machine\nwould not power down, but stay powered on in limbo, boot sequeence never\nstarting.\n\nI then proceeded to install Vista Ultimate. First attempts failed with\nthe machine powering off in the middle of it all. Looking the logs, it\nseemed that HD audio was the problem so I turned that off, and installation\nwas now able to complete. It was just that about on every second start of\nthe OS, the machine would power down during Windows boot sequence. Next\nstart would be OK. Vista did not seem to have problem with requesting a\nreboot.\n\nI downloaded the latest chipset driver for WinXP in hope that it would\nresolve the reboot problem, but instead starting of WinXP could also lead\nto power-down. As I kept on playing around, I also started experience this\npower-down when I was in the BIOS setup. I have tried clocking down\nmemory, and also running with only one 1 GB stick, but it did not make\nany difference.\n\nIn the Vista event log I found that each time the machine booted, it\nproduced a triplet of "IRQARB: ACPI BIOS does not contain an IRQ for the\ndevice in PCI slot...", but it may be unrelated.\n\nI remember from last summer that some people had a low opinion on this\nboard. I'm considering in getting something else. But what should I\navoid? ASUS or NVIDIA? Or both? A local vendor in town seems to have\nM2V K8T890 in store. Is that a good choice?\n\nI'm not into gaming, and I don't use my computer for media-centre stuff,\nbut main program development for SQL Server.