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Thread: Boot Problem with GA-EP45T-USB3P (rev. 1.0)




  1. #1
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    Default Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    I have 4*2GB of Corsair XM3 1600mhz 9-9-9-24 1.65v (cmx4gx3m2a1600c9). I want to place them all in the motherboard (GA-EP45T-USB3P), but I can only manage to put 4gb (2x2) to work. If I add a 3rd, a beep sound starts right at boot and pc won't boot (no image, just power,fans). I try placing them by order starting from the slot closest to the processor and then moving away, when i get to the third slot: "beep". If I add another to the 4th: beep. If I leave the 3rd empty and all the others with 2gb each, I get only 4gb detected with the 4th slot beeing totally ignored. Is there something I should do before moving from 4Gb to 6 or 8 that I'm ignoring? Do note: all 4 memories are working, since i've tested them in the first 2 slots. The problem is really getting to 6 or 8 gb using the 3rd and 4th slot.

  2. #2
    Chike is offline Senior Member
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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    Test both kits in slots 1 & 3, then one kit in slots 2 & 4.
    Run 6+ passes of memtest86+ each test.
    Seems like there is a problem with slot 4 and maybe 3 too, those tests should confirm which.

  3. #3
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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    Cannot boot with 1&3 or 2&4. Can only boot with 1&2, with memory working as single channel. It looks like the system powers off, and then beeps. Can it be a bios setting issue, something I should change, such as voltage?

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    Chike is offline Senior Member
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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    With one stick load optimized defaults then set
    Code:
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    
    MCH Core…………….....1.100V...........: 1.2 <<< try up to 1.26, then less than 1.05-0.95v
    If you still cannot boot with 2 sticks in dual-channel mode than those slots are probably defective and you will have to RMA the board.

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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    With given specs and voltages got the usual beeps as well as no image, just power and fans. Placed back the modules at slots 1&2 and works 100% stable but in single channel.

    Do you think RMA the board might be the only way out?

  6. #6
    Chike is offline Senior Member
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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    Quote Originally Posted by manuelp View Post
    Do you think RMA the board might be the only way out?
    You may be able to find a 2x4GB kit but why spend more money and have less performance if you have a defective board?

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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    And using only the first 2 slots means I'm confined to single channel?

  8. #8
    Chike is offline Senior Member
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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    Ye that's what I meant by less performance.

  9. #9
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    Default Re: Boot Problem with GA-EP45T-USB3P (rev. 1.0)

    Thanks a lot for all the help so far.

    Think i'll take the PC into a store for a closer look-up, maybe do some tests with other ram modules just to be sure.

    If indeed is the board as it seems, I might have a warranty issue, since my PC is now with me in europe, and the board was purchased in the USA... not sure how a gigabyte rma would work this up. Shipping the board in and out would take ages and about 40% of its cost.

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