After finishing my build today, when I turned my build on but my monitor doesn't detect anything. When I try using a HDMI cable it says "no connection detected", when I try using a DVI cable it says "no signal detected". All my fans run, my keyboard powers up, I've tried using both the HD/DVI ports on the GPU and on the I/O ports on my motherboard but none work, I've tried switching the memory slots, etc.
My build is:
CPU: Intel Core i5-3470 3.2GHz Quad-Core Processor
Motherboard: Gigabyte GA-B75M-D3H Micro ATX LGA1155 Motherboard
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive
Video Card: XFX Radeon HD 7950 3GB Video Card
Case: Zalman Z9 Plus ATX Mid Tower Case
Power Supply: SeaSonic 520W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply
Optical Drive: Lite-On iHAS124-04 DVD/CD Writer
Monitor: BenQ XL2420T 120Hz 24.0" Monitor
Other: Windows 8
Does that video card have a separate 'port' for a power supply connection? If 'yes', did you plug the power supply into this port? Does the video card show up in the Device Manager? I'm going to bet that it doesn't. If i'm right, remove the video card and reinstall it, making sure it is COMPLETELY seated in the PCIe slot. Then verify that the video card does show in the device manager. Then install latest driver. Then have lunch.
one quick test, take the memory out of the box (while the pc is shut down of course)
then try to power up. If you got a pc speaker you should hear beeps.
If not their is a problem with cpu/mobo/psu.
If you do, their is a problem with card or configuration.
In the bios you selected the dedicated gpu ?
Okay I tried something else when I asked on a different forum (powering the PC up without the graphics card inside) and it worked, I've set up Windows 8 and all my programs, including installing the drivers for my graphics card but it still doesn't work.
just went ot gigbytes web page the bios downloaded and unzipped fine for me. the bios.exe program unzipped an 8mb rom file on my downloads folder. all i had to do was movie it to a usb stick then boot into the bios and use the gigbyte bios updater.