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Thread: UD5 Post problem code C1




  1. #1
    Join Date
    Jan 2009
    Posts
    21

    Default UD5 Post problem code C1

    i was testing my ram if it can be undervolted to 1.5v

    did memtest86+ for 1 hr

    try booting into vista

    stop at loading screen

    reboot comp, loads up to logo screen and keeps rebooting (loop)

    clr cmos (I/O buttion in the back)-> rebooted with into bios and enable raid -> then it did check sum for bios -> boot into vista -> did a restart -> now comp wont post and cant not clear cmos

    error code c1 (detecting ram)

    i try one ram for each of the three ram i have

    i try using the cmos jumper pin and even removing the battery waiting 20 min as posted by the guide still no luck

    what is my next step of action?

    is it possible for all three ram to die at once? or its my mobo?

    thanks
    i7 920 w/ TRUE120 @ 4 Ghz
    Gigabyte EX58-UD5 F3
    Corsair XMS3 TR3X6G1600CG 6GB @ 1600Mhz
    XFX 4890
    WD 2x1TB RAID 0
    Seagate 7200.11 2x750GB Raid 0
    Antec P182 | Antec 850W
    Samsung SH-S203B | Westinghouse L2410NM

  2. #2
    Join Date
    Apr 2008
    Posts
    942

    Default Re: UD5 Post problem code C1

    i was testing my ram if it can be undervolted to 1.5v
    .........had you tried it at a higher voltage?
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  3. #3
    Join Date
    Jan 2009
    Posts
    21

    Default Re: UD5 Post problem code C1

    Quote Originally Posted by VorLonUK View Post
    .........had you tried it at a higher voltage?
    the highest i try was 1.64 lowest was 1.54 (stable) using 9-9-9-24

    it worked fine but stupid me want to see if it could do 1.5

    now i cant get into bios, well it wont post =(

    usually holding the clr mos button on the back does teh trick but not it does notthing

    is it a mobo problem or ram =|

    edit i even try to boot with all my ram taken out too see if i get the same error code

    i give me C1 code

    my mobo not seeing my ram?
    i7 920 w/ TRUE120 @ 4 Ghz
    Gigabyte EX58-UD5 F3
    Corsair XMS3 TR3X6G1600CG 6GB @ 1600Mhz
    XFX 4890
    WD 2x1TB RAID 0
    Seagate 7200.11 2x750GB Raid 0
    Antec P182 | Antec 850W
    Samsung SH-S203B | Westinghouse L2410NM

  4. #4
    Join Date
    Apr 2008
    Posts
    942

    Default Re: UD5 Post problem code C1

    It looks like the memory isn't being detected because you have set the voltage too low for this particular memory product.

    I'm not a 100% sure with this board as I know it does Dual and Tri channel setups, but could you try just booting with one stick of Ram. Once in the bios, increase the voltage to 1.6volts.

    Try just one stick in DDR3_1 slot (which is the Second slot away from the CPU)
    Last edited by VorLonUK; 01-16-2009 at 01:22 AM.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  5. #5
    Join Date
    Jan 2009
    Posts
    21

    Default Re: UD5 Post problem code C1

    i did try one stick for all my three stick and nothing

    when i did a sucessful cmos it put all my setting on stock/auto so my ram should be in auto, i only when into bios to enable raid 0 so i can boot into vista

    but i didnt do load optimal setting cuz i forgot to when i did a successful cmos
    i7 920 w/ TRUE120 @ 4 Ghz
    Gigabyte EX58-UD5 F3
    Corsair XMS3 TR3X6G1600CG 6GB @ 1600Mhz
    XFX 4890
    WD 2x1TB RAID 0
    Seagate 7200.11 2x750GB Raid 0
    Antec P182 | Antec 850W
    Samsung SH-S203B | Westinghouse L2410NM

  6. #6
    Join Date
    Jan 2009
    Posts
    21

    Default Re: UD5 Post problem code C1

    i just wanted to add that when i clr cmos i ususally just hold the clr mos button on the I/O with my comp off but power supply still connected is that bad?
    i7 920 w/ TRUE120 @ 4 Ghz
    Gigabyte EX58-UD5 F3
    Corsair XMS3 TR3X6G1600CG 6GB @ 1600Mhz
    XFX 4890
    WD 2x1TB RAID 0
    Seagate 7200.11 2x750GB Raid 0
    Antec P182 | Antec 850W
    Samsung SH-S203B | Westinghouse L2410NM

  7. #7

    Default Re: UD5 Post problem code C1

    I'm having pretty much the same problem.

    I recently got the same motherboard and CPU. I installed everything and it seemed to work fine. In the BIOS I turned on Extreme Memory Profile so my memory would run at 1333 instead of 1066, turned off virtualization and turned on C3/C6/C7 state (the last one I probably shouldn't have bothered with) and left everything else at its default. I wanted to make sure it ran first without doing anything else. I was able to run memtest86+ for 5 hours while I was sleeping and I woke up to no errors. Then I installed Vista and everything seemed to still be running fine. The next time I started my computer it wouldn't post and there were no beeps, and I got the C1 error.

    I never updated my bios, so I'm pretty sure I still have F3.

    I'm using G.SKILL 6GB (3 x 2GB) DDR3 1333 (PC3 10666) F3-10666CL7T-6GBPK, 650W Corsair PSU, Radeon HD 4870 1GB, Seagate 7200.10 2x320GB RAID 0 in an Antec Nine Hundred case.

    I contacted Gigabyte and after a lot of useless questions they told me:

    Hello,

    Please disconnect all components from the board except for the cpu along with heatsinkfan, do make sure that you have your case speaker connected to the board and listen for any types of post beeps. If none please check your processor and attempt to test it elsewhere or with an functional processor onto this board. If processor is confirmed to be functional the issue appears to be related to the motherboard and you will need to contact your vendor regarding warranty issue if it was purchased under 30 days. If over you can submit an rma request for warranty issue through our website below, make sure that you read through all agreements before submitting the request.

    rma_index

    Thank you
    I'm reasonably sure that the CPU hasn't gone bad because I turned the power at one point, but I'm not about to spend another $300 just to test a motherboard or processor.

    I ordered a 1GB stick of Crucial DDR3 1066 CT12864BA1067 (as advised by the Crucial memory advisor, so it should work), and when I get that I'll install it. If it works, great! If not then I'll RMA the motherboard. I'll post what happens. I'm hoping the memory comes tomorrow.

    And as for the CMOS button on the back, I'm pretty sure you should have no power to the motherboard, just like if you were clearing the CMOS with a jumper or just removing the battery. On page 37 of the manual it does state "Always turn off your computer and unplug the power cord from the power outlet before clearing the CMOS values."

  8. #8
    Join Date
    Jan 2009
    Posts
    21

    Default Re: UD5 Post problem code C1

    @squeegee5000

    keep me updated

    tmr I'm going over to my friends house he also has a i7 system so we should be able to find the cause of my problem

    My guess so far is that its the mobo
    i7 920 w/ TRUE120 @ 4 Ghz
    Gigabyte EX58-UD5 F3
    Corsair XMS3 TR3X6G1600CG 6GB @ 1600Mhz
    XFX 4890
    WD 2x1TB RAID 0
    Seagate 7200.11 2x750GB Raid 0
    Antec P182 | Antec 850W
    Samsung SH-S203B | Westinghouse L2410NM

  9. #9

    Default Re: UD5 Post problem code C1

    I tried the new ram and I still got the C1 error. I got my RMA started, so hopefully that doesn't take too long.

    Were you able to make anything work with yours? Is your processor OK?

  10. #10
    Join Date
    Feb 2009
    Posts
    1

    Default Re: UD5 Post problem code C1

    Did you guys get this sorted, or was it RMA only?

    My UD5 has just done this too, and given that it's already been replaced under RMA before due to being stuck in a reboot cycle, I'm losing patience with it and may decide to cut my losses and go with another supplier

    Alternatively, if anyone else has any ideas on how to correct this without having to RMA it, I'd be grateful. I've already tried to reset the bios by removing the battery for 30 minutes. Problem still occurs with no memory in at all
    Last edited by Saftlad; 02-11-2009 at 04:44 AM.

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