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

Thread: GA-MA785GM-US2H doesn't power up




  1. #1
    Join Date
    Feb 2010
    Location
    none
    Posts
    4

    Default GA-MA785GM-US2H doesn't power up

    I recently bought this board for a modest built and after I was done with the build the board didn't power up at all. I checked all of my connections and they all seem fine. I tried two different power supplies and I get nothing from the board. No green lights from the board, no fans spinning, nothing..

    Power Supplies
    Raidmax 450W ATX12V
    COOLER MASTER Elite 460W ATX12V V2.31
    Last edited by ColdShock; 02-21-2010 at 11:09 AM.

  2. #2
    Join Date
    Apr 2009
    Location
    Virginia
    Posts
    1,470

    Default Re: GA-MA785GM-US2H doesn't power up

    Did you inspect the 24 pin connection? On the back of the power supply their are switches. Be sure the power on switch is on. Did you set the 115v or 220v switch to the correct voltage?
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


  3. #3

    Default Re: GA-MA785GM-US2H doesn't power up

    it might be shorting

    take it out of the case and just have the board/CPU/gfx, one stick of RAM in the slot furthest away from CPU and keyboard plugged in sitting on the board box......make sure you push in the PSU's 8pin and 24pin connectors firmly

  4. #4
    Join Date
    Feb 2010
    Location
    none
    Posts
    4

    Default Re: GA-MA785GM-US2H doesn't power up

    The switch is set to 115v on both power supplies and the motherboard doesn't display the green light when I turn on the power supply switch. I checked all the connections and they seem fine. I took the motherboard out of the case and it still didn't do a thing out of the box.

    The power supplies work on other motherboards that I try them on.

  5. #5
    Join Date
    Apr 2009
    Location
    Virginia
    Posts
    1,470

    Default Re: GA-MA785GM-US2H doesn't power up

    Be sure the case front panel connectors are inserted correct. If you are sure that all the electrical connections are properly and fully inserted, and the power supplies are good then you have a bad motherboard. Especially if the motherboard light does not come on when you initially power the case on. You will want to go to the last page of your motherboard manual for Gigabyte contact information to RMA. Below I have provided a pdf link for the GA-MA785GM-US2H motherboard manual. This is in case you misplaced it. You may want to doublecheck all the installation instructions to be sure. Give it a bit to download. http://download.gigabyte.ru/manual/m...-ud(s)2h_e.pdf
    Last edited by artdrivers; 02-22-2010 at 07:42 AM.
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


  6. #6
    Join Date
    Feb 2010
    Location
    none
    Posts
    4

    Default Re: GA-MA785GM-US2H doesn't power up

    It isn't the motherboard since I tried a completely new one and it isn't working still.

    no led light on motherboard

    I think the power connectors are connected correctly (They seem to be foolproof)
    I am a little iffy on the front panels but what use would they do to me if the board doesn't even have any power coming to it judging by the led lights on the board not being on.

    Do I need reset any jumpers?

  7. #7
    Join Date
    Apr 2009
    Location
    Virginia
    Posts
    1,470

    Default Re: GA-MA785GM-US2H doesn't power up

    Did you perform a power on test to the power supply? Below is a url How to test a ATX power supply. http://pcsupport.about.com/od/toolso...multimeter.htm
    The power supply unit may be to week. Read page 24 of your motherboard manual. Below is a PDF of your motherboard manual give it a bit to download.
    http://download.gigabyte.ru/manual/m...-ud(s)2h_e.pdf
    1/2) ATX_12V_2X4/ATX (2x4 12V Power Connector and 2x12 Main Power Connector)
    With the use of the power connector, the power supply can supply enough stable power to all the components on the motherboard. Before connecting the power connector, first make sure the power supply is turned off and all devices are properly installed. The power connector possesses a foolproof design. Connect the power supply cable to the power connector in the correct orientation. The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected, the computer will not start.
    To meet expansion requirements, it is recommended that a power supply that can withstand high power consumption be used (500W or greater). If a power supply is used that does not provide the required power, the result can lead to an unstable or unbootable system.
    The power connectors are compatible with power supplies with 2x2 12V and 2x10 power connectors. When using a power supply providing a 2x4 12V and a 2x12 power connector, remove the protective covers from the 12V power connector and the main power connector on the motherboard. Do not insert the power supply cables into pins under the protective covers when using a power supply providing a 2x2 12V and a 2x10 power connector.
    The LED light will not come on the initial moment it is plugged to the power supply. You still need to have the front panel switch connected properly. Be sure you get the - and + correct. "HINT" Usually the negatives are white wires on common atx cases. You must perform an initial power on. Then the led should stay lit when you shut down until you disconnect the power cord or supply.
    Last edited by artdrivers; 03-07-2010 at 08:40 AM.
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


  8. #8
    Join Date
    Feb 2010
    Location
    none
    Posts
    4

    Default Re: GA-MA785GM-US2H doesn't power up

    The power connectors are compatible with power supplies with 2x2 12V and 2x10 power connectors. When using a power supply providing a 2x4 12V and a 2x12 power connector, remove the protective covers from the 12V power connector and the main power connector on the motherboard. Do not insert the power supply cables into pins under the protective covers when using a power supply providing a 2x2 12V and a 2x10 power connector.
    I don't recall taking out any protective covers out from the MB. Can anyone point out for me one of these protective covers (picture) because I don't seem to find any on the motherboard.

  9. #9
    Join Date
    Apr 2009
    Location
    Virginia
    Posts
    1,470

    Default Re: GA-MA785GM-US2H doesn't power up

    They more or less mean ."If it has a protective cover and you want to use a 2X4 12v connection remove the protective cover." Not all of them come with the protective covers anymore. You don't need to worry about them if you are using a 1X4 12v. Although you do need to wory about sufficent power.

    By artdrivers at 2010-03-09
    Last edited by artdrivers; 03-10-2010 at 08:45 AM.
    http://forums.tweaktown.com/gigabyte...ench-test.html
    http://www.gigabyte-usa.com/FileList...ios_qflash.pdf
    Phenom II 945 @ 3.2Ghz w/Thermaltake Big Typhoon Pro 14 CPU Cooler
    Gigabyte GA-MA78GM-S2H rev.1.1 F11
    Sapphire 3870HD / 100225L / 512MB / ddr4
    4GB / Kingston / KHX8500D2K2/2GN / 5-5-5-18 / 1066Mhz
    (2) WD Caviar / WD2500AAKS/ 250GB in SATA RAID-0
    (1) WD Caviar / WD2500AAKS/ 250GB in SATA AHCI
    (2) IDE's 1 8XdualDVDRW 1 52x32x52x CDRW
    Antec /Neo HE550 / 550W
    Mid size ATX case with show through panel
    2) 80x80 front fans (1) 120x120 rear fan and small nb fan
    Microsoft comfort curve USB keyboard 2000 ver.1.0
    Logitech G500 USB mouse
    Monitor: CMV937A
    7.1+2 Channel High Definition ALC889A
    Dual boot Windows 7 32bit home & Windows 7 64bit home


  10. #10
    Join Date
    Apr 2010
    Location
    Burlington, Ontario, Canada
    Posts
    3

    Default Re: GA-MA785GM-US2H doesn't power up

    I have the same motherboard, and the protective covers mentioned in the manual were not there on mine either...
    AMD Phenom II X4 965BE 4.0Ghz @1.41V
    Gigabyte GA-MA785gm-US2H Motherboard F6 BIOS
    Cooler Master Hyper 212 Plus with Dual fans
    Cooler Master HAF 922 Case
    4 GB OCZ Platinum DDR2 PC2-8500 1066 memory
    Saphire Radeon HD3650
    500 GB Western Digital SATA II hard drive
    500 GB Seagate SATA II hard drive
    Hauppauge WinTV HVR-1600 TV Tuner

Thread Information

Users Browsing this Thread

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

Posting Permissions

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