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Intermittent Vista boot failure RRS feed

  • Question

  • When Vista loads it often fails when the green bars are on screen it is possible to press the reset button and reboot which is sometimes successful but more often than not takes a number of failed attempts. Each time using start windows normally when given the menu. Safe mode always works. So far I've done a complete reinstall of the OS only to have the problem return, all drivers from Foxconn website have been installed for m/b followed by the Nvidia graphics drivers from their website. Next Vista sp1 has been installed from cd with required KB installed first. Sp1 made the 2gb of memory show as 18gb in system but every where else is still showing correctly. Then sp2 from dvd and all required updates have been downloaded but the problem still occurs. I've run msconfig and removed startup's plus services in groups but with the intermittent nature of the problem this has proved to be very time consuming for no result. OS boot information has been set in System Config which shows that a failure takes place before the disc checks run when the OS build cpu info is showing. Event logs appear not to give any clues as to the source of the problem.Vista repair from dvd finds nothing. Hardware wise both 1gb strips of memory have been removed and reinstalled, also tried using both strips individually, replaced sata cable on hdd, used different sata on m/b but problem still occurs.Thinking about testing with another hdd? Once in Vista the machine runs fine with no problems in fact prior to the onset of this problem the machine has run for 2 years without issues.  Any ideas??? 
    Have found that the problem is caused by Service Pack 1 following using system restore to return to first install then manually select updates. All is good until SP1 is installed then the boot problems start. Remove SP1 and machine is fine! 

    m/b Foxconn p9657aa-8ekrs2h, graphics Nvida 7600gt, Corsair xms2 ddr2 800hz hdd Samsung spinpoint 2504c    Vista 32bit home premium  all bios settings as standard. 
    Sunday, January 10, 2010 1:41 AM