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New WD 640 AACS doesn't show on cold boot

Discussion in 'Storage' started by RadeonX2, May 23, 2009.

  1. RadeonX2

    RadeonX2 New Member

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    well I've already sorted this out by using my other drive as the main OS which is the 250GB reformatted and installed Windows Vista but I'm just wondering if there's a permanent fix on my prob? My prob is when I turn on my PC or should I say cold boot the WD 640 doesn't show in bios but it does show in Windows? when restarting the WD drive does post it doesn't show up only on cold boot. Maybe because it's only 5400 rpm? any ideas?
  2. human_error

    human_error

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    In your bios is there a ide device timout on detecting them (will affect all hard drives, sata too)? Sounds like the drive's a slow starter and your mobo isn't allowing enough time for it to start.
  3. RadeonX2

    RadeonX2 New Member

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    ya there is I've already set to 35 which is the max I can set. still does the same thing doesn't show up on cold boot everytime. the good thing is it does show up when in Windows.
  4. human_error

    human_error

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    Hmm, interesting. So when you select to enter your bios how long does the mobo wait before going into the bios (plus is 35 in seconds of miliseconds?)?

    I'd be inclined to say that if a hard drive isn't starting fast enough to be detected in bootup then it's faulty and should be rma'd.
  5. RadeonX2

    RadeonX2 New Member

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    I've noticed a slight slow in boot screen. guess it's 35 seconds? I should check it out just to make sure.

    the things I had tried:
    -clear CMOS, doesn't work
    -changing sata ports, doesn't work
    -changing power connector, doesn't work
    -reformatting, done that 3 times or maybe 4

    the only single solution that I've done is using another drive as main OS.
    the WD AACS drive shows missing boot mgr every cold boot.
  6. human_error

    human_error

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    RMA it, something's definately up if the hard drive can't boot in time to load windows.
  7. RadeonX2

    RadeonX2 New Member

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    oh to answer your question "how long does the mobo wait before going into the bios?"
    I have my WD AACS plugged into port 0 upon boot-up the mobo will freeze for about 2-3 seconds as far as I remember it says " detecting ahci port 0" that is why I said the bootscreen is acting a little slower when the WD AACS drive is plugged in.

    maybe its my mobo? its kinda old P965 chip :eek:

    I'll try to RMA it but as of now it doesn't bother me anymore as long as its not my main OS drive
  8. human_error

    human_error

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    The only other thing i can think of is trying it with a newer bios on your mobo if there is one available. If not I'd rma the drive, there's no way a hdd should take so long to boot your bios doesn't see it.
    RadeonX2 says thanks.
  9. RadeonX2

    RadeonX2 New Member

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    I have the latest bios installed. I'll RMA this sucker and see if the new ones work :toast:

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