Motherboard or cpu - how to diagnose which might have an issue?

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Forums › Desktop computing › Motherboard or cpu - how to diagnose which might have an issue?

davidcole

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#177838 15-Aug-2015 18:45

I was transferring to a new case and once transferred connected it all up and nada. No lights, beeps or attempts for the fans to spin.

How would I go about determining if it's the CPU or the motherboard? Would it be worth taking to a repair shop? Could they diagnose it? I don't mind replacing one of the other if I've busted it, but wouldn't mind knowing for sure which one it is.

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JaseNZ

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#1367108 15-Aug-2015 18:54

Power supply ok ?? , right cables connected up for the power on button to the mother board.

No action on the monther board at all as in fans moving when power button is hit sounds more like power issue.

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hyperman

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#1367109 15-Aug-2015 18:55

guessing that it used to work
seems more likely that the connection from the psu is not making connection or the power switch it not connected ....

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ludez

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#1367115 15-Aug-2015 19:14

Take it back out of the case and test on a box or bench.It could be shorting somehow

davidcole

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#1367119 15-Aug-2015 19:25

hyperman: guessing that it used to work
seems more likely that the connection from the psu is not making connection or the power switch it not connected ....

Yeah right before I pulled it out I shut it down.

So should it work if I don't connect the front panel? Ie just giving it the PSU power etc? I have a very similar make and chipset board that I can run without connecting the front switches and that works...I'm currently thinking about trying to shoehorn the other board (fm1) and hope I can get the busted one (fm2) hard drive to use it.

Just downloading the chip set drivers to try and load those. As it hangs on graphics at the moment. The busted system is gigabyte fm2 a10 APU...the other working one is gigabyte fm1 a6 or 8 APU

davidcole

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#1367120 15-Aug-2015 19:28

ludez: Take it back out of the case and test on a box or bench.It could be shorting somehow

I did try it on a box with same result. It s a pity these motherboards have no lights on them or anything to tell if they're getting power.

I plug in the 24 (I think) motherboard header and the 8 pin atx power plug and ope it goes....and get nothing.

andrewNZ

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#1367121 15-Aug-2015 19:29

How are you trying to tell it to power on if the switches aren't connected?

If the other machine just powers on, that's a bios setting.

davidcole

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#1367126 15-Aug-2015 19:38

andrewNZ: How are you trying to tell it to power on if the switches aren't connected?

If the other machine just powers on, that's a bios setting.

Hmm yeah ok, the other one just started. Ok I was having issues possibly with the switch and wonder if it's busted. I think I have another one I can try or put it back in it's original case.

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hyperman

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#1367127 15-Aug-2015 19:40

davidcole:
andrewNZ: How are you trying to tell it to power on if the switches aren't connected?

If the other machine just powers on, that's a bios setting.

Hmm yeah ok, the other one just started. Ok I was having issues possibly with the switch and wonder if it's busted. I think I have another one I can try or put it back in it's original case.

rather than using the switch in the case remove the connection to the mobo and use something small and conductive to short the pins

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davidcole

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#1367130 15-Aug-2015 20:02

hyperman:
davidcole:
andrewNZ: How are you trying to tell it to power on if the switches aren't connected?

If the other machine just powers on, that's a bios setting.

Hmm yeah ok, the other one just started. Ok I was having issues possibly with the switch and wonder if it's busted. I think I have another one I can try or put it back in it's original case.

rather than using the switch in the case remove the connection to the mobo and use something small and conductive to short the pins

ok will try that. fingers crossed.

davidcole

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#1367171 15-Aug-2015 21:37

Oh well that was successful. Put a screw between the pin and the cpu fan spun up. Awesome. So I can look at putting it back together tomorrow.

timmmay

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#1367174 15-Aug-2015 21:43

I had a faulty power button on a case once, took a while to diagnose. Shorting the pins did it. Pain in the butt. Sounds like you have the same issue.

Jase2985

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#1367179 15-Aug-2015 21:48

could just plug the reset button in temporarily?

davidcole

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#1367182 15-Aug-2015 21:51

Jase2985: could just plug the reset button in temporarily?

I thought I'd tried that. Maybe they're both fried. They front an old case in a custom mount. And I hot glued them. Maybe I killed them.

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