No Video

A new client called me for help. Here is the whole story. He has a gaming computer with a Gigabyte GA-F2A88-YM-D3H motherboard and a GeForce GTX1050 video card. A friend of his suggested he replace his motherboard to improve perforance. He purchased whatever it was his friend suggested not realizing his CPU was not compatible. He had already completely disassembled his PC so he had to put it back together. Once he did it initially would not power on. The lights and fans would come on briefly and the go off. He disconnected everything and reconnected one piece of hardware at a time. It would then power up as he added each piece of hardware until everything was back in place. Now the PC powers up but there is no video. I have removed the video card and tried the onboard VGA and DVI connections. No video but when the cable is plugged in the monitor will initially flicker as though it will come on but it just goes back to powersaver mode. I have tried multiple monitors woith no luck. I have also removed each RAM stick at a time but still no video. I tried using known good RAM but still no video. I removed the CMOS battery and reinstalled it but still no video. Are there troubleshooting steps I am missing? Please advise.

Robert
Robert EhingerIT specialistAsked:
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dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
Test the video card in another machine and determine if that is OK.

Remove CPU and check for bent pins, missing pins.  Replace heatsink compound and then replace CPU and test.  Check fan is connected to motherboard.  Power up and check fan spins (if only briefly).
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Robert EhingerIT specialistAuthor Commented:
It powers up, the fans spin. I don't really have another PC to test the video card which is why I tried the onboard video connections. I will check the pins on the CPU.
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RaminTechnical AdvisorCommented:
In addition to the above suggestions, check all cable connectors (disconnected and reconnected  all).

Disconnected everything and reconnected one more time,

Also if possible try with another Power Supply.

it can also be a Hardware Issue, probably CPU or Motherboard.
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dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
If it is powering up and the fans spinning and you have NO video and the machine keeps running like that then (with the power off) remove the video card and connect the monitor to the onboard VGA.

Then power it up.
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nobusCommented:
check in the bios if the video card is seen - and selected
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Robert EhingerIT specialistAuthor Commented:
When I removed the CPU I found several bent pins. A new CPU has been ordered.
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