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Thread: Gigabyte GA-EP43-UD3L




  1. #1
    Join Date
    Dec 2009
    Location
    UK
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    Default Gigabyte GA-EP43-UD3L

    Hi, I have just purchased a new system and after setting it all up, it wont boot at all.

    What happens when I turn the machine on is:

    1)My monitor displays nothing (it's status light stays amber although its 'connect to source' message goes away)
    2)The motherboard makes no sounds at all (no beeps etc)
    3)The cpu fan try's to spin but fails (it 'judders' once then stops)
    4)The motherboards phase lights are green, green, yellow, red for about 5 secs then turn off
    5)My keyboard numlock icon lights up.

    The steps that I have taken to diagnose the situation is:

    1)Ran the system with 1 block of ram (trying all the ram slots)
    2)Ran the system with only the cpu, gfx card and ram - in the case
    3)Ran the system with only the cpu - out of the case (check for shorts)
    4)Have tested with 2 psu's (one brand new)
    5)Used the 'Reset CMOS' jumper then tried all of the above 3 steps

    Every test I have done produces the same results (top list). Is there anything that I am missing / doing wrong? Or is it a case of Dead On Arrival for the motherboard??

    Any help would be greatly appreciated as I am completely stuck (I have built quite a few machines before but am no expert).

    The system specs:

    MOBO: Gigabyte GA-EP43-UD3L
    CPU: Intel Core 2 Quad Q9650 LGA775 'Yorkfield' 3.0GHz
    RAM: Corsair Dominator 4GB (2x2GB) DDR2 XMS2 PC2-8500C5 TwinX
    GFX: PALIT GTX260 SONIC OC Edition 896MB
    PSU: CoolerMaster 600W Silent Pro
    HDD: Western Digital WD5001AALS 500GB
    Last edited by darkcyd3; 12-12-2009 at 05:01 AM. Reason: update

  2. #2
    Join Date
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    Sacramento
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    Default Re: Gigabyte GA-EP43-UD3L

    I have similar issue. Mine seems to be due to compatibility of DDR2. Take a look at my thread.

    http://forums.tweaktown.com/f69/help...booting-36824/

  3. #3
    Join Date
    Dec 2009
    Location
    UK
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    Default Re: Gigabyte GA-EP43-UD3L

    Just fixed mine :)

    Had to rip apart an old pc to get its bios speaker, turns out I needed to plug both pci-e (6 pin) connectors into the gfx card to fix the no display issue and push the cpu coolers fan into its base until it clicked (well sounded like it snapped) to get that working.

    All is good now, thank you for your prompt response

  4. #4
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    Default Re: Gigabyte GA-EP43-UD3L

    Hey, since you & I have the same motherboard, what memory are you using? Let me see if I can buy the same memory that you are using. Also, do you use optimized default BIOS setting?

  5. #5
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    Default Re: Gigabyte GA-EP43-UD3L

    RAM: Corsair Dominator 4GB (2x2GB) DDR2 XMS2 PC2-8500C5 TwinX (https://www.overclockers.co.uk/showp...odid=MY-148-CS).

    The RAM is great, rates as 7.1 on the Win7 test (havent performed any other tests yet).

    Im using bios rev F7a with optimized defaults, havent tweaked just yet (only got the system running this am)

    Fixed the no boot problem by plugging the second 6 pin pci-e connector to my graphics card :)
    Last edited by darkcyd3; 12-12-2009 at 09:44 PM.

  6. #6
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    Default Re: Gigabyte GA-EP43-UD3L

    Thanks. May be I will try the F7a BIOS. I have F6 right now.

  7. #7
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    Default Re: Gigabyte GA-EP43-UD3L

    Well, you have better luck than me. I udpated F7a and after re-start, it's in the reboot loop again. I had to swap out my 2 sticks of PC2-8500 Patriots vipers and put in my trusty 1 stick PC2-8500 Crucial for the rescure.ou r

    I see your DDR is also 2.1v. My system won't able to POST and go to BIOS without setting memory voltage to 2.0 in BIOS. You don't have to do that? Are you running at 1066 without much tweaking of BIOS?

  8. #8
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    Default Re: Gigabyte GA-EP43-UD3L

    I'm running the ram @ 1066 / 2.1v because thats what it was made for. havent tried a lower voltage. 100% stable so I will just leave it alone.

    As for 'tweaking of the bios' I set the memory profile to extreme and the voltage to 2.1
    Last edited by darkcyd3; 12-13-2009 at 04:14 AM.

  9. #9
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    Default Re: Gigabyte GA-EP43-UD3L

    Are you using the Digital Optical out on the motherboard for your audio setup?, I cant seem to get the damn thing working on mine...

  10. #10
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    Default Re: Gigabyte GA-EP43-UD3L

    No. I don't use the computer for killer audio :) I am using the LINE_OUT

    Hey, back to the RAM. If you don't set it the voltage to 2.1v and leave it for Auto, can your system POST and get into BIOS? My will just stuck in a cold boot loop forever. Now that I set the Memory voltage to 2.0v, I can get into BIOS too. I am curious if your system will boot up with Default BIOS settings.

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