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Thread: Gigabyte GA-EP43-DS3 not booting




  1. #1
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    Exclamation Gigabyte GA-EP43-DS3 not booting

    Hello there, I was trying to put together a build for a friend earlier, with a Gigabyte GA-EP43C-DS3 2x2gb Corasir xms2 800mhz and a core 2 duo e6320, and I cannot get it to boot, it seems to start with the fans for 5-10 seconds then restarts, it loops this over and over, i managed to get it to boot using a stick of my corsair dominator 1066, Does any Gigabyte expert know where I am going wrong, many thanks in advance.
    Would a bios update help me as I think it still has the first bios in it.
    Last edited by paulmcelroy; 09-06-2009 at 03:17 AM.

  2. #2
    Chike is offline Senior Member
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    Default Re: Gigabyte GA-EP43-DS3 not booting

    One stick of the xms2 memory won't boot either?
    Is the Dominator DDR3 or DDR2?

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    Default Re: Gigabyte GA-EP43-DS3 not booting

    Quote Originally Posted by paulmcelroy View Post
    Hello there, I was trying to put together a build for a friend earlier, with a Gigabyte GA-EP43-DS3 2x2gb Corasir xms2 800mhz and a core 2 duo e6320, and I cannot get it to boot, it seems to start with the fans for 5-10 seconds then restarts, it loops this over and over, i managed to get it to boot using a stick of my corsair dominator 1066, Does any Gigabyte expert know where I am going wrong, many thanks in advance.
    Would a bios update help me as I think it still has the first bios in it.
    Did this boot loop start on the very first boot up? If you can get it to boot with 1 stick of the 1066 can you get it to boot up with either stick of the 800? If neither stick of the 800 will boot install the 1066 stick enter bios and manually set ram timeings and voltages that are labled on the ram sticks of the 800. Save and exit the bios shut down the pc and install 1 stick of the 800 and see if it boots if it does try installing the second stick. If it wont boot with the second stick remove it and renter bios and try upping the MCH voltage to 1.2-1.26 which is common for 2x2gb ram may need more but start with that.

    If you get stuck in a boot loop its nothing to worry about first try turning the switch off on the back of your psu or pull the power cord if no switch. Wait 10-20 seconds flip switch back on or plug cord in try powering on the pc. If boot loop still occurs while switch is off or unplugged hold power button in for 15-20 seconds then reconnect try again. last resort would be using a jumper on the clear cmos pins leave jumper on for up to 20 sec or up to 1hr you should get a bios checksum error pressing f1 or f2 to enter setup.
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  4. #4
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    Default Re: Gigabyte GA-EP43-DS3 not booting

    Try clearing the CMOS and then booting as normal. If successful, go into the BIOS and load OPtimized defaults.

    If this doesn't solve the issue, then boot with the 1066 stick, hit load optimized defaults, save and exit, then IMMEDIATELY power down via the PSU off switch. Now insert the two DDR-800 modules and see if you get a successful boot.

    If neither of these steps work, again, boot with the 1066 module, load optimized defaults, save and exit, then re-enter the BIOS. Enter the correct RAM settings for the DDR-800 modules, so the right SMM to get |DDR-800, the timings on the sides of the modules and the correct voltage it requires. Now save and exit, then power off the system. Re-install the DDR-800 modules.

    Hopefully one of these steps will have you up and running with the DDR-800 RAM. If not, I recommend you take them to your Rig if possible and test them. See if they boot in your system. If they do, run Memtest86+ on them for at least a couple of passes to make sure there are no errors. Errors mean faulty sticks most of the time and they should be RMA'd. If they function fine in the test machine, it's probably a case of incompatibility.

    At least if the DDR-800 modules are incompatible, you know that a couple of Dominator (and likely just the plain 5-5-5-15 version PC2-8500 XMS2) would be an alternative purchase for his rig.
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  5. #5
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    Default Re: Gigabyte GA-EP43-DS3 not booting

    The xms2 800 would not boot on my board either so it does have me thinking it is either bad or incompatible though my dominator is just overclocked xms2 with fancier heat sinks on it iirc, my board is a Gigabyte GA-P35-DS4 rev 2.0 so it should have booted it on mine. Will be up with him later to finally try and sort this carry on out. Will be dragging my pc with me so we can go online for help. When I built my rig 18 months ago it booted first time, I really thouht it would be this simple this time.
    Would a usb device cause this, my friend has a hub hooked up with quite a few devices in it, i remember a usb device making my pc freeze at the motherboard model screen.
    Last edited by paulmcelroy; 09-06-2009 at 04:39 PM.

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    Default Re: Gigabyte GA-EP43-DS3 not booting

    Well his pc booted up no problems with one 2gb stick of xms2 in ddr2 slot 4 (red one nearest the front of case) But it just will not boot with the 2. I updated the bios to f4, tho I think it may have already had it. Any ideas guys.

  7. #7
    Chike is offline Senior Member
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    Default Re: Gigabyte GA-EP43-DS3 not booting

    Does it boot with single stick in the other slots too?
    Does the other stick boot too when used alone?
    What is the memory part number or the link to the memory specs?

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    Default Re: Gigabyte GA-EP43-DS3 not booting

    Quote Originally Posted by Chike View Post
    Does it boot with single stick in the other slots too?
    Does the other stick boot too when used alone?
    What is the memory part number or the link to the memory specs?

    To go along with what Chike said. If the computer was able to boot with 1 of the ddr2 800 sticks. Did you try that stick in any of the other slots? Which slot did you use your ddr2 1066 stick in to boot it up?

    Like I said in my post before you may need to alter Bios settings before you maybe able to get all sticks to work in the board.

    Like Psycho said run memtest86+ with each module and make sure they can pass that to make sure they are not defective. But still you may have to alter bios settings, First to make sure they Bios is detecting the correctly if not telling it the correct settings for those sticks and also adjusting MCH voltage to make sure the memory controller and North bridge are stable to operate 1 or all the ram sticks.

    But first thing is first. Try each stick separately making sure they either work or dont work. Then worry about getting them all to work together.
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  9. #9
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    Default Re: Gigabyte GA-EP43-DS3 not booting

    + 1 For the above.

    Let us know how you get along, sounds to me like you either have faulty ram or a faulty slot.

  10. #10
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    Default Re: Gigabyte GA-EP43-DS3 not booting

    the other sticks boot fine when in the ddr2 slot 4 but not in any other ddr2 slot, I have tried both sticks in every combination the board will allow but still no boot with 2. What bios settings will I have to change to see, there are 3 settings that deal with the MCH so I am not sure, i wont be over at my friends house till tomoorow night so I will not et a chance to see till then, will report back though.
    The RAM he has is http://www.corsair.com/_datasheets/T...096-6400C5.pdf
    Last edited by paulmcelroy; 09-07-2009 at 04:15 PM.

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