Machine spec:\nAsus A7V8X-MX\nAthlon XP2600\n512MB DDR266\nIntegrated audio, video\nWDC WD800JB-00FMA0 HDD 80 GB\nASUS CRW5232AS CD rewriter\n\nThere have been a few instances of it failing to detect the HDD on\nstartup, or taking a very long time to complete detection. The BIOS\nsettings are to auto detect the HDD each time the machine starts. This\nis a new computer only 3 months old.\n\nOn this occasion after "Primary master hard disk fail" was reported I\nwent into the BIOS settings and attempted to have the drive auto\ndetected by the setup program, which also failed. However on the next\npower up of the machine the HDD was detected and I was able to get the\nHDD parameters entered into the BIOS.\n\nOn other occasions that I have observed, auto detection has been\nextremely slow, and/or boot times have been extremely slow to complete\nbooting and loading Windows XP.\n\nThe power supply voltage monitor reads the following voltages:\n\nVcore 1.71 V\n3.3v 3.34 V\n5.0v 4.91 V\n12v 11.55 V\n\nCPU temp 32°C\nMB temp 25°C\n\nBios revision: 1003 (current release is 1006). No specific related\nissues addressed by any released BIOS updates.\n\nHave looked in the case and can see no problems, all connectors and\njumpers on the HDD appear to be properly seated.