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EggXpert » Product Support » Computer Building & Upgrad... » Motherboards » ta790gxb with phenom II 940 combo

ta790gxb with phenom II 940 combo

Last post 07-07-2009, 5:42 AM by nit. 7 replies.
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  •  07-03-2009, 4:37 PM 542031

    ta790gxb with phenom II 940 combo

    what a waste of money shipping second day air!!

    after putting everything together the cpu fan won't turn on.

    check voltage between 4 pins connection, 1 & 2 no voltage, 1 & 3 and 1 & 4 does.(check by myself no tech support available)

    make a return on this but waste my weekend and money to ship this!!!

     

  •  07-03-2009, 11:18 PM 542110 in reply to 542031

    Re: ta790gxb with phenom II 940 combo

    I do not know the electrical layout of the CPU fan, but what voltages did you read on those pins that DID have voltage? 3.3, 5 or 12 Volts? Anything besides those would be problematic...

    Does the fan spinup at all because part of me thinks you may not have a problem or there is some weird catch holding you up.

    Slm

    Please, feel free to private message me if you are looking for help; just link me to the thread.

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  •  07-04-2009, 1:02 PM 542253 in reply to 542110

    Re: ta790gxb with phenom II 940 combo

    after putting everything back together and remeasure the voltage. i got power on 1&2 12v, 1 & 3 25v, 1&4 10v put the fan on still not spin.

    I move to 3 pins fan connector and it works but the wires have to go on top of the fan.

    so not sure what is wrong with the 4 pins fan connection!!!

  •  07-05-2009, 12:24 AM 542425 in reply to 542253

    • GmsCool is not online. Last active: 11-23-2009, 6:25 AM GmsCool
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    Re: ta790gxb with phenom II 940 combo

    The fan won't be turned on until the main board detects that the CPU is functioning.

    Do you have an older CPU to try in the main board?

    Do you have the 4/8 pin connector connected to the main board from the CPU?

    Do you have the main board mounted to the standoffs or screwed directly to the case?

    BioShock_sig

  •  07-05-2009, 9:46 AM 542496 in reply to 542425

    Re: ta790gxb with phenom II 940 combo

    Do you have the 4/8 pin connector connected to the main board from the CPU?

    I have 4/8 pins connector and I connect 4 pins that said cpu to the motherboard. other 4 left blank.

     

    Do you have the main board mounted to the standoffs or screwed directly to the case? 

    I have it mount to the case.

     

    Do you have an older CPU to try in the main board?

    I change the fan connection to JNfan1 and boot everything work and install window no problem. 

     

  •  07-05-2009, 12:50 PM 542532 in reply to 542496

    • GmsCool is not online. Last active: 11-23-2009, 6:25 AM GmsCool
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    Re: ta790gxb with phenom II 940 combo

    If its not mounted to these little doo-hickeys   then thats most likely your problem. If there not installed the main board will be short-circuiting to the main board.
    BioShock_sig

  •  07-05-2009, 2:18 PM 542561 in reply to 542532

    Re: ta790gxb with phenom II 940 combo

    yes it is install with those.

    I mean i can get it work if not connect to the cpu fan connector!

    cpu fan with turn on even if no power hook to cpu. I had try other motherboard i had so i going to call biostar monday see what they said thx.

  •  07-07-2009, 5:42 AM 543085 in reply to 542532

    Re: ta790gxb with phenom II 940 combo

    called biostar they said exchange for new one.

    chat with newegg and they will exchange but rma take 2-5 days they won't refund and let me purchase new one so i can get it quicker and customer service disconnect my chatting session that piss me off!! paid for 2nd day air and end up with problem over 2 weeks of downtime!

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