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Thread: Cold boot issue EP45-UD3P




  1. #1
    Join Date
    Mar 2009
    Posts
    13

    Default Cold boot issue EP45-UD3P

    Hello All:

    I've searched the forums and found a few similar threads although I haven't been able to find something that will fix this for me.

    I got this board to replace a 2-year-old 680i that had too many issues during the past year. Not overclocking anything. At the moment, my goal is to have something stable. I've put my specs in the sig.

    Everything seems to be running OK most of the time. I think my issue is with the RAM, 4 x 1-gig OCZ 1066MHz. I'm running at the manufacturer specs of 5-5-5-15 and 2.1 volts. Memtest 86 shows no errors at that timing and voltage, although I initially tried at 2.0 and would get some memtest errors with all 4 sticks.

    Anyway, here's the problem. After the computer has been turned off (or hibernating) for some time, the system has the "boot loop" problem. It never quite reaches the POST logo screen, it just starts, runs for 10-20 seconds, then restarts itself. This happens 1 to 3 times, then it starts normally.

    Unfortunately this is difficult to troubleshoot because once the computer actually starts it will have no problems starting again until I leave it turned off for more than an hour or two.

    I'm thinking I might have better luck with a single 2x2gig kit, perhaps like an 800mhz 4-4-4-12 kit. I don't mind "downgrading" the ram that way as long as it yields a stable system.

    Any thoughts on this, or recommendations? Of course, if anyone has any suggestions on getting my current setup to work correctly, I'd want to try that first.

    Thanks in advance for your help.
    SM

    Gigabyte EP45-UD3P
    Core 2 E6600 2.4Gig
    2x2GB Mushkin 996580

    EVGA 8800 GTS 640mb
    OCZ Gamexstream PSU 850W

  2. #2
    Join Date
    Nov 2008
    Location
    Hu3zil
    Posts
    64

    Default Re: Cold boot issue EP45-UD3P

    Try putting around 1.26v at MCH, at default it should be around 1.1v, at 1.1v my mobo doesn't even post.

  3. #3
    Join Date
    Mar 2009
    Posts
    13

    Default Re: Cold boot issue EP45-UD3P

    Thanks for your reply. I'll give it a shot when I get home today.
    SM

    Gigabyte EP45-UD3P
    Core 2 E6600 2.4Gig
    2x2GB Mushkin 996580

    EVGA 8800 GTS 640mb
    OCZ Gamexstream PSU 850W

  4. #4
    Join Date
    Mar 2009
    Posts
    13

    Default Re: Cold boot issue EP45-UD3P

    That did not work. I tried setting the MCH to 1.26, then shut down and came back a few hours later.

    Still the same multiple boot problem.
    SM

    Gigabyte EP45-UD3P
    Core 2 E6600 2.4Gig
    2x2GB Mushkin 996580

    EVGA 8800 GTS 640mb
    OCZ Gamexstream PSU 850W

  5. #5
    Join Date
    Mar 2009
    Posts
    13

    Default Re: Cold boot issue EP45-UD3P

    Any other suggestions? Thanks!
    SM

    Gigabyte EP45-UD3P
    Core 2 E6600 2.4Gig
    2x2GB Mushkin 996580

    EVGA 8800 GTS 640mb
    OCZ Gamexstream PSU 850W

  6. #6
    Join Date
    Mar 2009
    Posts
    7

    Default Re: Cold boot issue EP45-UD3P

    Ok, this might seem like it comes out of left field but you could have a physical problem with the mobo. Like anything else, your motherboard will expand and contract with heat. A minor crack in one of the electrical pathways could be causing this. Theory being that when cold, the contraction makes the crack larger resulting in non-contact while heat expands and closes the crack. Don't know if I explained that well enough...

    I had a similar problem with an Asus mainboard a while ago; wouldn't boot when cold but if I left it on for a few minutes and rebooted, it would work perfectly. Sent it in for examination and they told me that there was a crack somewhere in the mainboard.

    Hope this helps.
    E8400 @ 4.24Ghz (8x530FSB) on GA-EP45-UD3P Rev. 1.1 (F9a) cooled by Noctua NH-U12P
    Lian-Li PC-B71 Case
    OCZ DDR2 PC2-8500 Reaper HPC 4GB Kit
    2x 150GB Velociraptor Raid 0
    2x 500GB Barracuda Raid 0
    2x 64GB OCZ Core V2 SSD Raid 0
    MSI 8800GTS
    Coolermaster Ultimate 850W PSU
    Vista Ultimate x64

  7. #7
    Join Date
    Mar 2009
    Posts
    13

    Default Re: Cold boot issue EP45-UD3P

    That sounds plausible, but it seems that quite a few others have had similar cold-boot problems from memory failures or incorrect settings, so I'd like to investigate that route before thinking about sending the board back.

    Thanks for your help.
    SM

    Gigabyte EP45-UD3P
    Core 2 E6600 2.4Gig
    2x2GB Mushkin 996580

    EVGA 8800 GTS 640mb
    OCZ Gamexstream PSU 850W

  8. #8
    Join Date
    Mar 2009
    Posts
    7

    Default Re: Cold boot issue EP45-UD3P

    Well, since you're not overclocking anything, the only thing other possible thing (that I can think of) is increasing the MCH voltage like AHPD mentioned above since this mainboard sometimes requires more MCH voltage when using more than 2 sticks of ram. Perhaps you could try borrowing some ram from someone and see if that works?
    E8400 @ 4.24Ghz (8x530FSB) on GA-EP45-UD3P Rev. 1.1 (F9a) cooled by Noctua NH-U12P
    Lian-Li PC-B71 Case
    OCZ DDR2 PC2-8500 Reaper HPC 4GB Kit
    2x 150GB Velociraptor Raid 0
    2x 500GB Barracuda Raid 0
    2x 64GB OCZ Core V2 SSD Raid 0
    MSI 8800GTS
    Coolermaster Ultimate 850W PSU
    Vista Ultimate x64

  9. #9
    Join Date
    Nov 2008
    Location
    Hu3zil
    Posts
    64

    Default Re: Cold boot issue EP45-UD3P

    I have 4 sticks of Ram, and a Q6600 overclocked to 3.2Ghz (400x8)

    These EP45 mobos is a lot of headaches when overclocking, it's not as easy task.

    The values i set is CPU V.Core at 1.4000v, CPU PLL at NORMAL, MCH at 1.26v, and V.Dimm at 2.1v, the rest of options it's all in auto.

    MCH Strap at 400Mhz, multiplier 2.6, and Extreme Memory Profile at Profile 2.

  10. #10
    Join Date
    Mar 2009
    Posts
    13

    Default Re: Cold boot issue EP45-UD3P

    Still the same issue. I'm using an E6600 CPU (dual-core) which is not overclocked so the voltage is at stock. Otherwise, similar settings but still the same issue.

    I ran prime95 for a bit today, also no problems. Anyone think I'd have better luck with a single 2x2gib kit?
    SM

    Gigabyte EP45-UD3P
    Core 2 E6600 2.4Gig
    2x2GB Mushkin 996580

    EVGA 8800 GTS 640mb
    OCZ Gamexstream PSU 850W

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