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Thread: Ep45-Ud3p Rev 1.0 +12 Volt Rail question




  1. #1
    Join Date
    Dec 2008
    Posts
    21

    Default Ep45-Ud3p Rev 1.0 +12 Volt Rail question

    Hi ,I hav both of Ep45 Ud3p Rev 1.0 and Ud3r Rev 1.1 .
    I test Mobo with the same Power Supply Enermax 460 Watt.
    I notice that UD3r 1.1 have +12 Volt Rail around 12.11x V all the time I use .
    But for My UD3p I have only +12 Volt Rail around 11.87-11.98 V all the time and never go above 12.00 V Is that a problem when I try to OC with this mobo??

    P.S. UD3R is OCing very well with my E8600

    ThX in advance
    Last edited by BuGjAE; 05-22-2009 at 01:45 AM.
    ____________________________
    System-1
    Q9550 @ 4.0 with Ultra 120 Extreme l EP45-UD3R l Crucial Ballistix 4GB 2x2GB l Gigabyte GTX 460 1GB
    LIANLI PC 8NWB l ENERMAX 460 WATT
    System-2
    I5-2500K with Tuniq 120 Extreme l
    P67A UD3P l Gskill 4GB Ripjaw 1600 CL9
    EVGA GT 420 l LIANLI PC P7FNWB l
    Thermaltake 600 WATT
    ____________________________

  2. #2
    Join Date
    Apr 2009
    Location
    J'Habite En Angleterre
    Posts
    2,431

    Default Re: Ep45-Ud3p Rev 1.0 +12 Volt Rail question

    It's not a problem, no need to worry. ATX specifications state +/- 5% is within spec. So a 12V rail could be between 11.5V and 12.6V

    I don't foresee any problem with your overclocking on the UD3P. It's likely just a small difference in VRM impedance and such causing the different voltage. It may be even that the BIOS in each board is reporting different voltages, even though the supply voltage is identicle.

    If you're worried, take a DMM and measure voltages of your PSU and of the board (there are guides of where to probe the UD3P for voltages on the net). I wouldn't bother though, it all sounds fine.

    Edit** What cooler are you using for your 4.4GHz overclock? I want one!
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  3. #3
    Join Date
    Dec 2008
    Posts
    21

    Default Re: Ep45-Ud3p Rev 1.0 +12 Volt Rail question

    @ Psycho101, thx for advice. I dont worry so much but I can't do 550x8 with UD3P1.0
    compare with my UD3R 1.1 I can do easier with almost a simple setting to get it stable.

    EDIT: I use Coolermaster Z600 for OC to 4.4 Temp in fulload arond 70-75 C
    ____________________________
    System-1
    Q9550 @ 4.0 with Ultra 120 Extreme l EP45-UD3R l Crucial Ballistix 4GB 2x2GB l Gigabyte GTX 460 1GB
    LIANLI PC 8NWB l ENERMAX 460 WATT
    System-2
    I5-2500K with Tuniq 120 Extreme l
    P67A UD3P l Gskill 4GB Ripjaw 1600 CL9
    EVGA GT 420 l LIANLI PC P7FNWB l
    Thermaltake 600 WATT
    ____________________________

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