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Thread: GA-X58A-U3DR won't post after working successfully




  1. #1
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    Default GA-X58A-U3DR won't post after working successfully

    I'm having issues with my Gigabyte X58A-U3DR mobo not posting, even though it was working perfectly well last night. Specs are as follows:
    - Gigabyte GA-X58A-U3DR (Rev 2.0) mobo
    - Intel Core i7 950 (factory speeds)
    - 6GB Corsair DDR3 1600mHz Dominator RAM (factory speeds)
    - Corsair TX 750w PSU
    - Gigabyte GeForce GTX470OC edition GPU (running factory setting)
    - 3 x 1TB Seagate 7200rpm HDD's running RAID5
    - Windows 7 Ultimate 64bit OS
    - Pioneer 22x SATAII DVD-RW

    The computer was operating perfectly well yesterday afternoon, for 3-4hours straight, no heat/voltage issues or error messages at all. I go to start the computer this morning and a range of funny things happened:
    1) First sign of trouble was when it wouldn't post on cold start, so i turned off the power on the PSU, and at the plug in the wall, and restarted. Got to POST, then was asked for DISK BOOT DRIVE (even though OS was already installed)
    2) Reset the computer to go into the RAID settings, only to find one of the HDD's had an "Error Detected" and hence the RAID was no longer effective.
    3) I wiped all of the RAID setups, and re-configured the whole system to run RAID5 again (formatting the HDD's effectively)
    4) When I went pressed restart to begin installation of the OS again, it wouldn't POST, or let me get to the BIOS or CMOS settings.

    After the above I noticed the lights next to RAM Slot #5 (furthest from the CPU) had 2 x Orange and 2 x Green LED's, indicating something wasn't right. Then they just turned off all of a sudden, and I noticed the CPU Voltage and CPU Temp lights came on, even though the PC had only be on for probably 15 seconds.

    I've tried the following:
    - starting with only 1 RAM stick in (tried all 3 different sticks too), no luck.
    - pressed the CLR_CMOS button numerous times and disconnected the PC from power for some time, no luck.
    - re-seating the CPU (carefully) and looking to see if any of the CPU pins on the mobo were bent (which none of them looked out of place)

    After trying all of the above, the CPU LED's are no longer coming on, but the RAM lights are still illuminating as above.

    I honestly don't know why it is not working, seeing as the system worked perfectly fine last night, and after this most recent shut-down it just won't work now.

    Any suggestions are most welcome.

    EDIT - UPDATED

    Turned out to be faulty PSU. The 3v line to the mobo was all over the shop, not averaging anywhere near the 3.3v it needed. PSU was classified DOA, new PSU, several cold starts later (48 hours later) no issues (touch wood).
    Last edited by cjhod1; 12-01-2010 at 05:51 PM.

  2. #2
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    Default Re: GA-X58A-U3DR won't post after working successfully

    Try to set the CPU Vcore at the BIOS manually .. ( No Auto )
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  3. #3
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    Default Re: GA-X58A-U3DR won't post after working successfully

    Quote Originally Posted by Kiriakos View Post
    Try to set the CPU Vcore at the BIOS manually .. ( No Auto )

    The problem is I can't get into the BIOS to set this up, as the system won't load into the BIOS or past the POST at all.

  4. #4
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    Default Re: GA-X58A-U3DR won't post after working successfully

    try removing the mb battery,leave it out overnight and then try,sometimes pressing the clear cmos button isnt enough
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  5. #5
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    Default Re: GA-X58A-U3DR won't post after working successfully

    Quote Originally Posted by wazza300 View Post
    try removing the mb battery,leave it out overnight and then try,sometimes pressing the clear cmos button isnt enough
    Will try that tonight.

    I left the battery out for 30-40mins yesterday, and that did nothing, but will try leaving the BIOS battery out overnight, and maybe even replace it with a new one (just to rule it out).

  6. #6
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    Default Re: GA-X58A-U3DR won't post after working successfully

    if that doesnt work then try with one hdd installed, just incase a hdd has failed
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
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    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

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  7. #7
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    Default Re: GA-X58A-U3DR won't post after working successfully

    Quote Originally Posted by wazza300 View Post
    if that doesnt work then try with one hdd installed, just incase a hdd has failed
    This same procedure was recommended to me on the Uk Gigabyte forum, so will be trying that tonight as well. I didn't realise a failed HDD could cause BIOS issues???

    Out of curiousity, what is the minimum required to get a mobo to post. PSU, CPU and RAM? Or does it need a functioning HDD as well?

    Thanks again for all your help.

  8. #8
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    Default Re: GA-X58A-U3DR won't post after working successfully

    i dont know,i dont know much about raid either to be honest but if its in raid 0 and one drive fails then it wont boot up,it might affect bios as it scans for hardware before booting into the bios screen,same as faulty ram or incorrect bios setting it simply wont boot up so its a possibility,just try and figure out which hdd has failed by plugging them in port0 one at a time and try booting up, you need psu/cpu/ram/hdd i would think for a successfull boot

    if it lets you reach the bios screen with one hdd plugged in but not the other then you can say that one has failed,if it doesnt reach bios with either drives then it might be something else

    EDIT: thats assuming that a failed hdd or hardware would halt a normal post or boot up,i dont know 100%
    Last edited by wazza300; 11-26-2010 at 05:39 AM.
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  9. #9
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    Default Re: GA-X58A-U3DR won't post after working successfully

    There is no need to let the motherboard with no battery and wait ...

    Most people they forget that all that it takes , are to remove the mains cable from the PSU ,
    and short the contacts for 5 seconds !! ( battery in place )
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  10. #10
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    Default Re: GA-X58A-U3DR won't post after working successfully

    There is no need to let the motherboard with no battery and wait ...

    Most people they forget that all that it takes , are to remove the mains cable from the PSU ,
    and short the contacts for 5 seconds !! ( battery in place )
    Sometimes yes, but in many forum threads, people have had to leave the CLR_CMOS pins jumpered for 20 minures, several hours, or for 12 - 24 hours.

    Some feel that mobo battery removal is not necessary, others disagree.
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