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Motherboard not responding

seth125

My motherboard... well... the onboard graphics has not output signal at all, and I have no video even after installing a graphics card. The speaker beeps not, not even after removing the memory or the CPU. I changed the PSU as long as every other hardware just to discard a malfunction, but I have not the tools (aka another computer with the same socket/slots) to test the CPU or the Memory, but I know the motherboard is not quite dead 'cause when I turn it on the fans spin. And thats all the pc does. 

 

Any tip or advice? the mobo is a p4m900 m7 fe Biostar

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3 minutes ago, seth125 said:

My motherboard... well... the onboard graphics has not output signal at all, and I have no video even after installing a graphics card. The speaker beeps not, not even after removing the memory or the CPU. I changed the PSU as long as every other hardware just to discard a malfunction, but I have not the tools (aka another computer with the same socket/slots) to test the CPU or the Memory, but I know the motherboard is not quite dead 'cause when I turn it on the fans spin. And thats all the pc does. 

 

Any tip or advice? the mobo is a p4m900 m7 fe Biostar

When you installed the GPU, where is your video cables connected to? The motherboard rear I/O or the GPU itself?

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Is the PC on continuously after you hit the start button, do the fans and such continue to be powered on? or does it switch off after a few seconds?

 

Please quote my post, or put @paddy-stone if you want me to respond to you.

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  • PCs:- 
  • Main PC build  https://uk.pcpartpicker.com/list/2K6Q7X
  • ASUS x53e  - i7 2670QM / Sony BD writer x8 / Win 10, Elemetary OS, Ubuntu/ Samsung 830 SSD
  • Lenovo G50 - 8Gb RAM - Samsung 860 Evo 250GB SSD - DVD writer
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  • Displays:-
  • Philips 55 OLED 754 model
  • Panasonic 55" 4k TV
  • LG 29" Ultrawide
  • Philips 24" 1080p monitor as backup
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  • Storage/NAS/Servers:-
  • ESXI/test build  https://uk.pcpartpicker.com/list/4wyR9G
  • Main Server https://uk.pcpartpicker.com/list/3Qftyk
  • Backup server - HP Proliant Gen 8 4 bay NAS running FreeNAS ZFS striped 3x3TiB WD reds
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  • Gaming/Tablets etc:-
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  • Xiaomi/Pocafone F2 pro 8GB/256GB
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11 minutes ago, BlueChinchillaEatingDorito said:

When you installed the GPU, where is your video cables connected to? The motherboard rear I/O or the GPU itself?

To the GPU of course. I tried several cards, a radeon 7550 and a gtx970

7 minutes ago, paddy-stone said:

Is the PC on continuously after you hit the start button, do the fans and such continue to be powered on? or does it switch off after a few seconds?

 

Yes, they do. All the fans keep powered on, the CPU's, the GPU's, the PSU's and the case's. That's the only way i know it is turned on, but otherwise it does nothing

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Just now, seth125 said:

To the GPU of course. I tried several cards, a radeon 7550 and a gtx970

Yes, they do. All the fans keep powered on, the CPU's, the GPU's, the PSU's and the case's. That's the only way i know it is turned on, but otherwise it does nothing

OK I would theorize then that the computer is in fact on, and that you just can't see a display output:-

 

Try a different output from the GPU if you can.

Try a different cable.

Try a different display.

Please quote my post, or put @paddy-stone if you want me to respond to you.

Spoiler
  • PCs:- 
  • Main PC build  https://uk.pcpartpicker.com/list/2K6Q7X
  • ASUS x53e  - i7 2670QM / Sony BD writer x8 / Win 10, Elemetary OS, Ubuntu/ Samsung 830 SSD
  • Lenovo G50 - 8Gb RAM - Samsung 860 Evo 250GB SSD - DVD writer
  •  
  • Displays:-
  • Philips 55 OLED 754 model
  • Panasonic 55" 4k TV
  • LG 29" Ultrawide
  • Philips 24" 1080p monitor as backup
  •  
  • Storage/NAS/Servers:-
  • ESXI/test build  https://uk.pcpartpicker.com/list/4wyR9G
  • Main Server https://uk.pcpartpicker.com/list/3Qftyk
  • Backup server - HP Proliant Gen 8 4 bay NAS running FreeNAS ZFS striped 3x3TiB WD reds
  • HP ProLiant G6 Server SE316M1 Twin Hex Core Intel Xeon E5645 2.40GHz 48GB RAM
  •  
  • Gaming/Tablets etc:-
  • Xbox One S 500GB + 2TB HDD
  • PS4
  • Nvidia Shield TV
  • Xiaomi/Pocafone F2 pro 8GB/256GB
  • Xiaomi Redmi Note 4

 

  • Unused Hardware currently :-
  • 4670K MSI mobo 16GB ram
  • i7 6700K  b250 mobo
  • Zotac GTX 1060 6GB Amp! edition
  • Zotac GTX 1050 mini

 

 

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18 minutes ago, paddy-stone said:

OK I would theorize then that the computer is in fact on, and that you just can't see a display output:-

 

Try a different output from the GPU if you can.

Try a different cable.

Try a different display.

Yeah... already try all of that. Tried VGA, HDMI, DVI and nothing. And the onboard speaker also worked before, but now it doesn't indicate a thing. Tried two different GPUs so I think it is safe to assume it's not a video issue

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