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Thread: DFI EXPERT and VDIMM ? ? ?

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  1. #1
    Xtreme Member
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    Jul 2003
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    Can it be the PSU? I recently received a PSU for a review. It came on a very cold day. I took it upstairs opened the box and took it out to jump start it. And the PSU was mad cold, like ice. Measured the voltages.......
    12V rail was at 13V+!!! And so did the other voltages. They were off by at least +0.7V.

    I let it sit for a few mins in my house with an ambient temp of about 68F. And after about 1 hour - voltages were spot on 12V, 3V and 5V!

    I guess if it is too cold the PSU has a boost in efficiency or something, but I can be wrong. Anybody can explain this?

  2. #2

  3. #3
    Xtreme Enthusiast
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    Ok, thanks, will measure VTT next time I try with cold air

    But this is very weird behaviour, how about if I test my FX57 with DI and EXPERT do like this

    Hmm, maybe it's safe to stay with SLI-D
    - Team Skootterit
    - SuperPi32M : 18m53.156s with FX-57 / LN2 (Ilkkahy's brazed container)
    - SuperPi8M : 3m55.703s with FX-57 / LN2 (Ilkkahy's brazed container)
    - SuperPi1M : 21.484s with FX-57 / LN2 (Ilkkahy's brazed container)


  4. #4
    Xtreme Enthusiast
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    I gonna test today with 12/07 BIOS and some cold air.
    ..and my Antec PSU is not modded to 24pin, it's original 20pin with 4pin +12V
    - Team Skootterit
    - SuperPi32M : 18m53.156s with FX-57 / LN2 (Ilkkahy's brazed container)
    - SuperPi8M : 3m55.703s with FX-57 / LN2 (Ilkkahy's brazed container)
    - SuperPi1M : 21.484s with FX-57 / LN2 (Ilkkahy's brazed container)


  5. #5
    Xtreme Addict
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    I ran my Expert @ 0C ambient with no voltage issues. BIOS E1207. That is weird, hard to say if it's the board, but my $$ is on the PS.
    MB Reviewer for HWC
    Team OCX Bench Team

  6. #6
    Xtreme Member
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    Jan 2005
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    167
    Quote Originally Posted by Eldonko
    I ran my Expert @ 0C ambient with no voltage issues. BIOS E1207. That is weird, hard to say if it's the board, but my $$ is on the PS.
    You mean PSU?
    We got the same one so that should rule out the PSU as the cause of this Vdimm behavior.

    What revision on your DFI expert board?
    Mine is the AA0.

    s754 PCIe; EPoX EP-8NPAJ // Claw 3700+ // 7800GTX // Cors BH-5 1GB // OCZ 520W // WinXP

  7. #7
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    R.A02 and yep PSU.
    MB Reviewer for HWC
    Team OCX Bench Team

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