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Thread: EP45 UD3P Bios settings for 8gb (4x2gb) PC-6400

  1. #1
    Join Date
    Jun 2009

    Default EP45 UD3P Bios settings for 8gb (4x2gb) PC-6400

    Hi, I'm total newbie on first build (spec. below)

    I'm at 'breadboarding' stage ATM, memtest86+'ing single sticks of ram.
    Only have PSU, MB, CPU+HS, Vid card, monitor, KB & Mouse, and floppy drive (to run booted no HD or OS yet)) connected at present.

    Assuming all four sticks of ram are ok, please can anyone suggest bios settings for when I put in all four sticks together? I've heard that dram voltage needs to be increased, and possibly NB, but can find nothing definitive for my particular kit.

    Currently all bios settings on auto, except dram increase from 1.8v to 1.82v, as I read somewhere that for CL4 memory, this was necessary?

    I don't want to OC (yet), -I just want a stable system at stock settings FTM. -but I'll be back in time, for OC'ing suggestions?

    Also, have read somewhere that auto settings for CPU voltage tended to get set too high...what settings should I set?

    will gladly supply any more info needed?

    Any other help & suggestions very much appreciated?
    Thanks, in advance

    PSU=Be Quiet darkpower pro 750W
    GA-EP45 UD3P Rev 1.1
    Q9550 EO stepping 2.83Ghz
    OCZ Gladiator Pro
    G-Skill DDR2 PC2-6400 PI Black 800Mhz (4-4-4-12) CL4
    (4 x 2gb sticks, but obviously not all in yet!)
    Sapphire Radeon HD 3870 512mb
    HDs= 2 x 640GB SATA WD Caviar Blacks
    (not yet connected)
    2 x optical DVD/RW
    (not yet connected)
    Lian Li PC-A70B...sadly empty FTM.

  2. #2
    profJim's Avatar
    profJim is offline Chief Munchkin + moderator
    Join Date
    Dec 2008
    Tacoma, WA. [USA]

    Default Re: EP45 UD3P Bios settings for 8gb (4x2gb) PC-6400

    If you're using 4x2GB of G.Skill F2-6400CL4D-4GBPI-B memory, it's rated at 1.8 - 1.9 volts. I suggest starting with 1.90 or 1.92 settings with 4 modules.

    See this post for recommended initial bios settings.

    MCH Core might work with AUTO (1.10 volts), but you might need to try 1.16 - 1.22, or 1.05.

    If your system won't boot or fails Memtest86+ at 800MHz memory speeds, you might need to try initially running/testing your memory at 667 speeds by setting the System Memory Multiplier to 2.00B or 2.00D.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S

  3. #3
    Join Date
    Jun 2009

    Default Re: EP45 UD3P Bios settings for 8gb (4x2gb) PC-6400

    profJim, thank you for your help;

    will try your suggestions when I'm done memtesting the individual sticks.
    (am impatient to move on, but it's got to be done I suppose...just wish it didn't take so long...)

    Meanwhile will follow your link for bios settings and try hard to learn & understand at least some of this stuff!

    Thanks again; I realise it must be really tedious for all of you gurus to keep answering same old stuff from ignoranti like myself, -but it's really scary (but fascinating) for first timers when confronted with bios settings that have little or no meaning (yet), and so reassuring to have a helping hand...

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