Help! Installing 4GB of Ram on ASUS P5W DH Deluxe

Discussion in 'General Hardware' started by ste_w, Apr 18, 2008.

  1. ste_w

    ste_w Moderator

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    Hello all,

    I have an ASUS P5W DH Deluxe on a custom built PC from pcspecialists.co.uk, it came with 2GB already on it placed in the orange slots, i recently purchased:

    1 x OCZ 2GB Kit (2x1GB) DDR2 800MHz/PC2-6400 CL 4-4-4-15 PLATINUM XTC with LIFETIME WARRANTY

    and placed them in the black slots, however the BIOS will only recognise 3GB as well as windows VISTA 32bit. I know vista has problems recognising 4GB but the bios shouldnt. on first black slot the clasp at the top wont go down fully but the RAM is firmly inserted, removing that ram and going into the bios still shows 3GB no difference in having all 4 plugged in. Should i put the new ram in the organe slots?

    Please Help

    Regards,

    Steven
     
  2. Dark Atheist

    Dark Atheist Moderator Political User Folding Team

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    try a bios update or swap the 1gb sticks about might be one is broke - or clean the mem slots out and make sure it is seated right, sometimes an incorrectly seated mem stick is the error
     
  3. ste_w

    ste_w Moderator

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    Would updating the bios cause any problems? i.e. wouldnt start or have to format anything?
     
  4. ste_w

    ste_w Moderator

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  5. Dark Atheist

    Dark Atheist Moderator Political User Folding Team

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  6. ray_gillespie

    ray_gillespie Moderator Staff Member Political User

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    I had a similar problem with my motherboard - a BIOS flash solved everything. Good luck!
     
  7. Bman

    Bman OSNN Veteran Original

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    Random side question, just to refresh my memory lol

    You put matching pairs of RAM into the same color slots?
     
  8. ste_w

    ste_w Moderator

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    I've fixed the problem, thanks for your help.
    1.What i did was Remove all my memory modules and test them individually...they all worked.
    2. Removed origional RAM from orange slots and replaced them with the new RAM
    3. Placed the old Ram into the black slots

    The bios eventually found all 4GB and so has vista, although i did have a slight problem where the machine wouldnt boot, for some reason quite a bit have forced had to be used to make sure they were all in. Was easyier on my old system.

    Anyway all works now., litteraly just swapped them round and used good old brute force lol

    Thanks people

    Regards,

    Steven
     
  9. ray_gillespie

    ray_gillespie Moderator Staff Member Political User

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    It depends on the motherboard - my old Foxconn motherboard (a bit crap) needed me to put them in the same colour slots and my new motherboard needed me to put them in different colour slots. (Or it's the other way around, I can't remember!)

    The point is, just have a look in the instruction manual for your motherboard and see what that says. Failing that, try in one way and if it's running in single channel 64 bit mode then just move one of the sticks on RAM.
     
  10. Dark Atheist

    Dark Atheist Moderator Political User Folding Team

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    as i say they were not seated right :)
     
  11. Bman

    Bman OSNN Veteran Original

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    That is why I asked, I remember always been told to put them in the same color slots, but every time I go and do it I have problems. Why do they have to make things complicated lol
     
  12. Dark Atheist

    Dark Atheist Moderator Political User Folding Team

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    do you have the mem set to dual channel ?
     
  13. ste_w

    ste_w Moderator

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    Hi, Again

    How do i know if it is set to dual channel then? and if it is not how do i set that?

    Many thanks,

    Steven
     
  14. Dark Atheist

    Dark Atheist Moderator Political User Folding Team

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    i was actually talking to bman - although most boards now a days know if you have stick in slots 1 and 3 or 2 and 4 that they are more than likely dual channel so you don't have to check anything