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Thread: EP45-UD3P dual channel ram issues




  1. #1
    Join Date
    Jan 2009
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    Default EP45-UD3P dual channel ram issues

    Hi everyone,

    I'm having issues with getting my motherboard to work with both sticks of ram at the same time in dual channel mode. The ram seems to work without an issue if you use them individually. Specs of my system are:

    CPU: Intel E8200
    Motherboard: EP45-UD3P
    RAM: G.Skill F2-8500CL5D-4GBPK
    Power Supply: Corsair VX450W

    If anyone could lend a hand I would most appreciate it Thanks for reading!

  2. #2
    Join Date
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    Default Re: EP45-UD3P dual channel ram issues

    Have you increased you DDR voltage to 2.0volts?????? You Will need to do that to make them work most likely. So basically your normal ddr voltage is 1.8 so you need to go to the DDR overvoltage setting and put it to 0.2v I hope that makes sence?? Let us know if you need more help.
    Lian Li PC-7F Chassis Black
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  3. #3
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    Jan 2009
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    Default Re: EP45-UD3P dual channel ram issues

    Hi NimrodAUS, thanks for the advice. I've already tried that though... I put in one stick and changed the voltage to 2.1V (the RAM specs say it is able to run 2.0v-2.1v). I then put in the other stick but then I get a lot of short beeps which lead to the computer to reboot itself and repeat the cycle again.

    Is there anything else I can do? I've also tried turning off Legacy USB devices to disabled...

  4. #4
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    Default Re: EP45-UD3P dual channel ram issues

    Have you also set the timmings manually? 5-5-5-15 instead of AUTO
    Lian Li PC-7F Chassis Black
    Gigabyte GA-X48-DS5 MB (Rev. 1.1 BIOS v.F8c)
    Gigabyte ODIN GT 800Watt PSU
    Intel Core2Quad Q9550 E0 @ 3.4Ghz @ 1.25vcore
    Noctua NH-U12P + AS5
    G.Skill 2X2GB F2-8500CL5D-4GBPK
    2 X ATI Radeon HD4850 512MB (Crossfired)
    Dell Ultrasharp 2209WA IPS
    2 X 1TB Seagate 7200.11 in RAID 1
    Pioneer DVR216 SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------
    Gigabyte Poseidon Chassis
    Gigabyte GA-EP45-DS3 (Rev. 1.0 BIOS v.F9)
    ASUS Artic Square CPU Cooling with AS5
    Thermaltake TR2 RX 550Watt PSU
    Intel Core2Duo E8500 E0 @ 3.8Ghz @ 1.25vcore
    Corsair 2 X 2Gb XMS2 PC6400C5 DDR2
    NVIDIA GeForce 8800GT 512MB
    1 X Seagate 1TB 7200.12 + Seagate 750GB 7211.11
    Sony SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------

  5. #5
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    Default Re: EP45-UD3P dual channel ram issues

    As said, set timings manually. Also set Static tRead to something looser for now such as 8-9. Short beeps is definately a RAM issue, usually tRead or tRFC.
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  6. #6
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    Default Re: EP45-UD3P dual channel ram issues

    hmm... ok so I tried changing the timings manually but that didn't work either. Same thing with the Static tRead... I changed that to 9. Anything else I can try out?

  7. #7
    Join Date
    Jun 2009
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    66

    Default Re: EP45-UD3P dual channel ram issues

    Not sure what your MCH Core voltage is at - but since you are running 2GB sticks, you may want to increase it to 1.22V or 1.24V and see if that helps.
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    Ram: 4GB (2X2GB) DDR3 Corsair XMS TW3X4G1600C9DHX (9 9 9 24 1.8V ver 3.2)
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  8. #8
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    Default Re: EP45-UD3P dual channel ram issues

    Hi ghost707, I've tried changing the MCH as you suggested but that doesn't seem to work either...

  9. #9
    Join Date
    Jul 2009
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    12

    Default Re: EP45-UD3P dual channel ram issues

    What BIOS do you currently use? May be updating BIOS to a newer one can solve your problem, most probably is incompatibility with the RAM you're using now.
    Latest BIOS version for this board is F10b. I have tried it and find no issue so far when running my system on default.
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  10. #10
    Join Date
    Jan 2009
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    Default Re: EP45-UD3P dual channel ram issues

    Hi Humbl3, I was using bios F9 but at your recommendation flashed to bios F10b. I also made the changes everyone has pointed out such as:

    changing ram voltage to 2.1V
    changed ram timings manually to 5-5-5-15
    changed tRead to 8
    changed MCH to 1.22V
    updated bios from F9 to F10b

    what else can I try? Is it just the ram and motherboard not playing nicely or is it just the motherboard??

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