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EP-45-Ud3p (1.0) + 2x Corsair DIMM 4 GB DDR2-800 DHX startup issues

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  • #1

    EP-45-Ud3p (1.0) + 2x Corsair DIMM 4 GB DDR2-800 DHX startup issues

    Hi Guys,

    I am running (or trying to) a Gigabyte EP-45-Ud3p with 8 gb of Corsair DDR2-800 DHX. Unfortunately it doesn't work as expected.
    At startup the bios beeps in short bursts (beepcode: undervoltage of the board). After I deinstall the ram - startup (long no ram beep) - power off - reinstall the ram - power on all works fine. Machine (Vista64Ultimate) runs fine and shows 8gb of ram. Reboots - soft/hard - are no problems at all. Turning the machine off and on again - no problem. Disconnecting it from power for a short while - no problem. The problem only occurs again when the machine was turned off for a while, like overnight.

    I first thougt of the PSU. Bought a new one (Corsair 650W) - same issue.
    Changed the Voltage of the Ram from standard (1,8v) to 2,1V - same issue.
    Changed the timings of the Ram to the SPD-ones - same issue.
    Changed the MCH-Core voltage to 1,2 - same issue; 1,3 same issue.
    Flashed the Bios to F9 and tried above steps again - same issue.

    I can't shake the feeling that I missed something important. But I can't figure it out.

    Please help!
    Tags: None
  • #2
    Re: EP-45-Ud3p (1.0) + 2x Corsair DIMM 4 GB DDR2-800 DHX startup issues

    Same issues here..

    Mobo : GA-EP45-UD3P (F9 Bios)
    RAM : 4x1GB Crucial Ballistix 5-5-5-15 1066Mhz.
    CPU : Q9300

    Tried everything.. the system restarts itself, or it goes BSOD style.. or restarts endlessly..
    http://dailyfix.gr
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    • #3
      Re: EP-45-Ud3p (1.0) + 2x Corsair DIMM 4 GB DDR2-800 DHX startup issues

      Fast short beeps (about 18-20) means incorrect memory timings. You should post your BIOS values to figure out what's wrong with your settings.
      GA-EP45-UD3R (F12)
      Zalman CNPS-7000C-CU
      [email protected]
      2x2GB A-DATA Vitesta 800+ CL4 Extreme Edition @ [email protected] (5-5-5-15)
      Asus EN9800GT Ultimate @ 810/2000/2200
      Seagate 250GB + WD 500GB + WD 640GB
      Asus DRW 1608-P
      BenQ G2010WP
      Thermaltake TR2 500W
      Windows 7 Pro x64

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      • #4
        Re: EP-45-Ud3p (1.0) + 2x Corsair DIMM 4 GB DDR2-800 DHX startup issues

        Thanks for the reply. Here are my bios Values:

        ***DRAM Performance Control

        Performance Enhace: TURBO
        Extreme Memory Profile: AUTO
        (g)MCH Frequency Latch: AUTO
        System Memory Multiplier (SPD): AUTO
        CAS: 4 AUTO
        tRCD: 4 AUTO
        tRP: 4 AUTO
        tRAS: 12 AUTO
        Advanced Timing: Made no changes there
        Had this timings under BIos F8 put in manually now they are on Auto

        ****Motherboard Voltage Control

        >>>DRAM
        DRAM Voltage 2.1V
        DRAM Termination 1.05V
        Channel A Reference 1.05V
        Channel B Reference 1.05V
        (Had all this on the AUTO Settings before (1.8/0.9/0.9/0.9) - no chages


        Everytime I get into the Bios Intelligent(?) Tweaker It says:

        "experienced boot failures because of overclocking or changes of voltage"

        Help really is appreciated! Bart

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        • #5
          Re: EP-45-Ud3p (1.0) + 2x Corsair DIMM 4 GB DDR2-800 DHX startup issues

          Ideas anyone?

          One thing I can't figure out is why the PC boots EVERYTIME after I take out the Ram and put it in again. Seems like the BIOS must fall back on some kind of settings. What are those settings? Right now I don't care much about speed, but I don't want to crawl under my desk everytime I want to check my email

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