Installed all the new hardware last night. Once everything was ready to go, I booted up the computer but I get nothing on the monitor. When I press the menu button on the monitor it states, "There is no signal coming from your computer." I can however hear Windows 7 boot up just fine. If I press the power button again, I can again hear Windows 7 powering down. Thus far, I have been able to repeat that as necessary.
My graphics card is an EVGA 8800 GTS. I have tried switching it to the other PCI-E slot and rebooting. No help there.
The GPU has power as the fan is spinning.
I have verified that the PCI-E power cable is firmly plugged in to the GPU.
I have verified that the GPU is firmly and fully positioned in the motherboard.
I have tried another monitor. (I usually run dual screens)
I have tried another PCI-E power cable to the GPU.
I have tried a different, older GPU (also PCI-E).
I have tried resetting the monitor settings.
I have even tried removing all but one stick of RAM and testing it in each RAM slot.
All of these lead to the same result: No signal to the monitor. After testing all of these I decided to take the computer into the living room and test the onboard HDMI. I plugged that into the HDTV and viola, I've got video out. So what does this likely mean? Bad motherboard slots? What's the next step? Is it possible that these GPU's are not compatible?
Again, the hardware I'm using is:
Motherboard - GIGABYTE GA-Z68XP-UD3
CPU - Intel i5 2500K
PSU - Corsair HX 750W
RAM - G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL
EDIT: I plugged my speaker in and I'm only getting the one, short beep when the system powers up, so as far as that goes, the PC is saying everything is powered up and OK.
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