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Thread: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?




  1. #1
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    Unhappy GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Hi, I'm looking for some advice.

    I'm having problems getting my new build to work. My build is based on Tech Report's Summer 2009 "Econobox" except I use an EarthWatts 430W PSU instead of an EarthWatts 380W.

    My problem is that the system doesn't boot. There is no image on the screen and no beep. All the fans go, and I can hear the SATA devices spinning up. It does not even beep if I remove all PCI/PCIe cards and RAM. Naturally in this case I do not expect an image!

    I suspect something serious is wrong with either the motherboard, CPU or PSU, or maybe some combination of all three.

    Motherboard: Gigabyte GA-MA770T-UD3P rev 1.0
    CPU: Athlon Phenom II X2 550BE
    PSU: Antec EarthWatts 430W

    There are two things I can think of that might be wrong - other than faulty parts or some installation error like shorting:

    1. The PSU has a 4-pin 12V power connector, but the motherboard has an 8-pin (or 2x4-pin) socket. However I think this should be OK because the manual says on page 22 that 4 of the pins are "Only for 2x4 pin 12V". This wording implies to me that there is the possibility of using 1x4-pin connectors. I'm not sure why the manual would include that comment otherwise. Also posts on the net seemed to say that a single 4-pin connection will often be OK if the CPU doesn't draw too much power, and the X2 is rated at 80W. It is not some 120W+ CPU, for example. However the PC does not boot.

    2. I wanted to clear the CMOS in case that was the problem. When I tried to do this I discovered that the clear-CMOS jumper was already in place (i.e. it had shipped in place). The installation guide had not warned that it needed to be removed during installation. But in the section on clearing the CMOS the manual advises against turning the computer on with the jumper in place in case it cause damage: "...before turning on your computer, be sure to remove the jumper cap from the jumper. Failure to do so may cause damage to the motherboard." Unfortunately I had already turned the computer on with the jumper in place this because I tested the computer several times before I thought about trying to clear the CMOS and noticed this warning.

    What I'd like to find out is whether either of these are likely to be problems or whether I should start thinking about faulty parts or some other installation error. Should this motherboard/CPU combination work with a 4-pin connection? And what is the likelihood that the motherboard has been damaged by having the CMOS jumper in place while powered on?

    If the power connector is likely to be the problem then I will order an EarthWatts 500W, which includes an 8-pin EPS 12V connection. I will try out the new PSU with the motherboard. If it still does not work then I will try a replacement motherboard.

    If the 4-pin power connection is likely to work, but the CMOS jumper has probably damaged the motherboard then I'll get a replacement motherboard and try again.

    If the CMOS jumper damaged the motherboard then ideally I would like it to be replaced at no charge because I feel the installation instructions should have highlighted this clearly as a potential problem. i.e. The fact that the jumper was already in place and needed to be removed before first boot. There is a page that lists installation precautions, and one more bullet point would have saved the board. I read all the upfront warnings carefully, but I did not pre-read the entire 91 page manual and check every jumper! But maybe this is something obvious that I should have known about. Feel free to share your opinion. :)

    My feeling is that the motherboard is probably damaged and I should try to replace that first. But is there something else I should consider doing?

    Thanks for all advice. Let me know if there's any more information I can give.

    Thanks
    Rich
    Last edited by richd; 09-19-2009 at 07:09 AM.

  2. #2
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    check all your cables and you cpu heatsinks fitted correctly,and it should boot and run with just a 4pin cpu connector i ran my i7 off just a four pin connector till my 8pin psu arrived so i know it works, make sure you have your ram fitted in the correct slots
    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
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    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!!
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    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  3. #3
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Quote Originally Posted by wazza300 View Post
    check all your cables and you cpu heatsinks fitted correctly,and it should boot and run with just a 4pin cpu connector i ran my i7 off just a four pin connector till my 8pin psu arrived so i know it works, make sure you have your ram fitted in the correct slots
    Glad to know it worked for someone. There are various stories about whether it will or won't work scattered around the net. The consensus seems to be that it will be OK so long as your CPU doesn't draw too much current through the wires. I think it's OK in this case, but would appreciate confirmation!

    • CPU heatsink looks fine, it's all locked down and the fan spins.
    • Motherboard and CPU power connectors are in tightly and won't fit in any other way anway.


    Thanks
    Rich

  4. #4
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    Smile Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Quote Originally Posted by richd View Post
    Glad to know it worked for someone. There are various stories about whether it will or won't work scattered around the net. The consensus seems to be that it will be OK so long as your CPU doesn't draw too much current through the wires. I think it's OK in this case, but would appreciate confirmation!

    • CPU heatsink looks fine, it's all locked down and the fan spins.
    • Motherboard and CPU power connectors are in tightly and won't fit in any other way anway.

    Thanks
    Rich
    the cpu power (4pin block) will only go in one way and leave four open sockets,it will work you dont need an 8pin cable tho if you have one use it....sometimes if your cpu heatsink isnt fitted correctly the cpu gets hot and the motherboard shuts down causing bootloops...other than that i dont know what else to suggest
    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!!!!!!!!!!!!!!!!!!!!!!

  5. #5
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Quote Originally Posted by wazza300 View Post
    the cpu power (4pin block) will only go in one way and leave four open sockets,it will work you dont need an 8pin cable tho if you have one use it....sometimes if your cpu heatsink isnt fitted correctly the cpu gets hot and the motherboard shuts down causing bootloops...other than that i dont know what else to suggest
    Thanks Wazza - all help is appreciated!

  6. #6
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Most likely the clear cmos jumper damaged the bios if the board was plugged in with the clear cmos jumper on. I understand it was shipped this way and you were not aware that it was jumped. When you assembled and tried to boot the bios was damaged. Please make a printout of your post to send with the motherboard. Contact Gigabyte for an RMA. You can find the contact information in the back pages of your motherboard manual. You will need the motherboard repaired and flashed with the F2 or F3 updated Bios for that CPU to function properly anyway.
    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


  7. #7
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Quote Originally Posted by artdrivers View Post
    Most likely the clear cmos jumper damaged the bios if the board was plugged in with the clear cmos jumper on. I understand it was shipped this way and you were not aware that it was jumped. When you assembled and tried to boot the bios was damaged. Please make a printout of your post to send with the motherboard. Contact Gigabyte for an RMA. You can find the contact information in the back pages of your motherboard manual. You will need the motherboard repaired and flashed with the F2 or F3 updated Bios for that CPU to function properly anyway.
    Thanks. I'll try putting it together once more, then it sounds like it's worth trying to repair or replace the motherboard.

  8. #8
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    When you have a no P.O.S.T. Just before sending it back you will want to remove the motherboard from the case and perform a P.O.S.T. bench test to it.
    Instructions as follows.
    Please follow the following simple steps.
    1. Place the motherboard on top of the cardboard box (you can use the motherboard box)
    2. Install the CPU, CPU fan, Memory, Power supply plugs (plug the 1 X 20 pin and 1 X 4 or 2 X 8 pin from the power supply unit) and a video card.
    3. Hook the monitor to the video card and be sure the monitor is switched on.
    4. Turn on the system board by using the case "Power on" switch.
    If the system fails to POST, check the components' insertion again to ensure they are all connected properly.
    Then RMA. This may save you some time and S&H charges if it is a short from the case.
    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


  9. #9
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Quote Originally Posted by artdrivers View Post
    When you have a no P.O.S.T. Just before sending it back you will want to remove the motherboard from the case and perform a P.O.S.T. bench test to it.
    Instructions as follows.
    Please follow the following simple steps.
    1. Place the motherboard on top of the cardboard box (you can use the motherboard box)
    2. Install the CPU, CPU fan, Memory, Power supply plugs (plug the 1 X 20 pin and 1 X 4 or 2 X 8 pin from the power supply unit) and a video card.
    3. Hook the monitor to the video card and be sure the monitor is switched on.
    4. Turn on the system board by using the case "Power on" switch.
    If the system fails to POST, check the components' insertion again to ensure they are all connected properly.
    Then RMA. This may save you some time and S&H charges if it is a short from the case.
    I'd tried this before, without the RAM and video card, but no luck with them either.

    I haven't yet tried removing and reinserting the CPU and heatsink. Are there any things that I need to be careful about? Would I need more thermal compound (there was already some on the bottom of the heatsink but I don't have any more), or can I just take the heatsink and CPU out and then put them back in again?

  10. #10
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    Default Re: GA-MA770T-UD3P: No boot: 4-pin 12V connector / CMOS jumper?

    Are there any things that I need to be careful about?
    Be carefull not to get compound on the pins. Check the pins for any bent pins.
    Would I need more thermal compound
    Under the circumstances I would'nt be concered at the present for cleaning the old compound off to test for P.O.S.T. If it works replace the compound before using though.
    Last edited by artdrivers; 09-19-2009 at 12:06 PM.
    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


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