PC not recognizing monitor, keyboard and mouse

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itsreal

Honorable
Apr 22, 2013
7
0
10,520
I just received a new replacement for an RMAd motherboard but now when I turn on my PC, the monitor immediately goes into power saving mode and switches to an amber/yellow light while the kb&m remain off.

The monitor, kb & mouse work fine on another computer.

Things I tried:

- Resetting the CMOS by removing the battery and putting it back in.
- Unplugging all the wires connected to the PSU, using a can of compressed air to dust off the inside, then reconnecting the wires.
- Using different cables.
- Turning it on w/ only one gpu inside


Specs:
windows 7 64 bit
asus p8z77-Vdeluxe
16 gb DDR3 ram
intel core i7 3770K
x2 nvidia evga 670 GTX
corsair HX750

 
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I

itsreal

Honorable
Apr 22, 2013
7
0
10,520
Thx for the link I went through the check list but w/ no success

What I tried:
- Completely reassembling PC
- Checked for screws or wires under motherboard
- checked CPU position and thermal paste
- Checked for extra golden pins
- checked if wires are plugged in right
- Turned it on with only 1 RAM stick inside

And does this motherboard beep during errors or do I need to buy a motherboard speaker?
 
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A

avjguy2362

Honorable
Jun 21, 2012
732
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11,360
I can barely see in a photo of your MB, but it does appear to have the 4 LED start-up indicators: CPU, RAM, GPU, and primary HD. DO all of these LED's turn on and then each one is supposed to turn off to indicate that each device has been properly recognized?
 
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