Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!
Page 1 of 3 123 LastLast
Results 1 to 10 of 25

Thread: GA-EX58-UD5 Doesn't boot, LED error C1 & b2




  1. #1

    Default GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    Hello,

    I've recently put together a new system using a Gigabyte motherboard, and I'm not having any luck getting it to boot. I've never worked with a Gigabyte mobo before, so I'm not sure if I'm doing something wrong or if one of my components is malfunctioning.

    I started by assembling everything and powering it up without success. I've progressively reduced my hardware to just the mobo, power supply, & cpu/heatsink, and I'm still getting the same problem.

    Specs:
    GA-EX58-UD5
    Intel i7 920 (w/ standard heatsink)
    Antec TP2-550EPS12V 550W PSU
    Crucial CT3KIT25664BA1067 3-2GB 240-PIN DIMM
    NVIDIA GeForce 7800 (PCI express)
    ATI All In Wonder (PCI video card - alternate graphics card)

    Currently I have the mobo sitting on a non-conductive surface (wooden table) with only the PSU and CPU connected. Every time I try to boot, I get the same LED codes: first I get "C1" followed by "b2". If I swap the RAM to the incorrect slots, I get "C1" - "bF" - "C1" - "b2"

    I've removed everything and checked all of my connections several times. There are no loose components. The RAM is in the correct slots, and is properly installed. I've tried two different graphics cards (I've only have one installed at a time). It seems that no matter what I do, it doesn't POST. Any suggestions?

    Thanks.

  2. #2
    Join Date
    Sep 2008
    Posts
    990

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    Check the link in my sig, all the things I'd try first are in there.


  3. #3
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    You do have the ram in slots 2, 4, and 6 correct. (*Edited out 2,3,5* I musta been sleeping) I see you mentioned the incorrect slots, so I just wanted to make sure you had the correct slots correct.

    Have you tried re-seating the CPU? If not, please do so and check to be sure NO pins are bent under the CPU.

    Can you find and connect a case speaker as well so you can see if any error beeps are also emitted?

    C1 is a memory error, have you tried dual and single channel? Just wondering

    Also, have you tried clearing the CMOS and then starting again? Use the button, and if that does not work for you use the method I outline here in post #2 >>>
    http://forums.tweaktown.com/f69/bios...h-guide-27576/
    Last edited by Lsdmeasap; 02-23-2009 at 04:12 PM. Reason: Edited to correct Ram slots (2,4,6 Correct slots everyone looking)

  4. #4
    Join Date
    Feb 2009
    Posts
    3

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    I've got the exact same problem. Same board, same RAM. Tried every RAM configuration, tried each RAM chip individually, too. No change. I thought this was a problem with my graphics card... maybe I should trade in the mobo instead?

    I tried clearing CMOS, btw. No difference, still won't post, no signal to the monitor.

  5. #5

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    Saxman,

    I'm not sure what to do next. I've only had the board for a few days. I would hate to send it back for a replacement, but if I can't figure it out in about another week, I may just do that.

    I thought it may be my video card or my PSU, but I've tested both video cards in my other system, and they work fine. My power supply also works fine for my other system. The only components that I can't verify is the CPU and the RAM. I feel pretty confident about the CPU, because when I remove it, I get a code 88, and the board shuts off. I've tried re-seating the CPU. This new i7 chip doesn't have pins, and I'm pretty confident that its installed correctly.

    So that leaves only the RAM or the motherboard (at least as far as I can tell). I thought I've exhausted all the RAM combinations, but Lsdmeasap mentions putting the RAM in slots 2, 3 & 5. I've always put them in either all white or all blue slots. I've never tried mixing them. I've tried using only one at a time, and I get the same error. I even get the same error codes when I don't install any RAM.

    I'll probably get a chance to try using slots 2, 3 & 5 tomorrow, but if you have any suggestions, let me know.

  6. #6
    Join Date
    Feb 2009
    Posts
    3

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    I've got no more ideas, man. I tried 2, 3 and 5 before, because I really did try EVERY RAM config. I tried it again just now, but no dice. I sent a request for help to Gigabyte, but I can't seem to find a customer service number to call anywhere. I just wish someone could say exactly wtf a B2 code means when the board hangs on it!

  7. #7

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    I have exactly the same problem. I tried replacing the motherboard and CPU but I still got the same issue. I have however read this on the Gigabyte website regarding the motherboard:

    "Why EX58-EXTREME, EX58-UD5, EX58-DS4 can't boot with some Core i7-920, Core i7-940 CPU?<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>
    <o:p> </o:p>
    GIGABYTE X58 series motherboards may have compatibility issues with Intel Core i7 940 and 920 production version CPU, so we strongly recommend you to update the latest BIOS as following for better performance,
    EX58-EXTREME BIOS version F3
    EX58-UD5 BIOS version F3
    EX58-DS4 BIOS version F3
    You can use BIOS build-in Q-Flash utility, or Window based @BIOS utility to update BIOS. After Main BIOS update successfully, system will reboot and during POST, please press Alt + F12 key to update Backup BIOS"


    I'm going to try giving Gigabyte a call this week to see how I can go about doing this, I have no way of updating the latest bios as I don't have any other processors that are compatible with this board.

    Hope this helps anyway.

  8. #8
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    Sorry, I wrote that wrong!!! Correct slots are 2, 4, and 6, Dont know what I was thinking about???

    They will not work in 1, 3, and 5

    I will edit the above incase someone reads just that later and gets confused as to why it will not work

    @ Smileinthedark.

    There is no CPU Pins, yes, but there is socket pins and if ANY of them are bent or out of place you will have to RMA the board or try to bend them back. Did you check the socket pins?

    Do you have a case speaker connected? If not, try to find one so you can hear what beep if any you are getting.

    What happens with NO ram installed? That should give you a beep, but you would need a case speaker.

    @ Saxman

    You can Call Tech support, not sure where you live so here is global just choose the area close to you. Not sure how quick they are to answer though? >>>
    GIGABYTE

  9. #9
    Join Date
    Feb 2009
    Posts
    3

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    There's no tech support number for the mobos... They just have one for notebooks and one for marketing. Tech support, it seems, has recently been moved to an online-only form, and according to their tracking display, they haven't looked at mine yet. I'm hoping I won't need it now, though. I RMA'd my board back to newegg today. I'll let you guys know if the new one works so at least we'll know if it was the board that was DOA or something else.

  10. #10

    Default Re: GA-EX58-UD5 Doesn't boot, LED error C1 & b2

    Saxman314

    Please let me know how the new mobo works out. I just got mine last week, so I still have time to send it back if I need to. I'm curious to see if it's the board itself. I think it might be the RAM. I've read a lot of other posts with people loving the mobo, but so far I haven't heard of anyone using Crucial memory.

    Lsdmeasap

    Thanks for your help. I don't recall getting any beeps with any of my configurations so far, but I'll have to double check. I didn't have speakers connected for the first two dozen tries.

    And you were right about the pins on the motherboard. I didn't notice them at first. There are in perfect condition.

    I'll try a few more configurations hopefully this weekend (with speakers), but I'm doing some traveling for work, so I won't have access to the board for a few days.

    Thanks again for the help.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •