Hoping for some help here please.. I have just built a new Gaming PC and I cant wait to get it all running.. although I am having a problem and think it is the graphics card.
RAM: 16GB Corsair
Mobo: Asus P8Z77-V Pro
GPU: Gigabyte Radeon 7870 OC 2
PSU: NRXN 600w (80+)
Case: CM HAF 912
The problem I am having is that when I have power going to the GPU, I get no display output (HDMI) from either the iGPU or the new OC 7870.. if I remove power to the new GPU, then I can get display output from my Internal HDMI output..
Looking at the the Graphics setting in the BIOS, the default option for which GPU to use is on "Auto". I change this to iGPU, and then can have power to the 7870 and still get output from the iGPU... it is then seen in Device Manager in Windows and I can add the drivers.. although if I change the HDMI cable over to the new card (7870), I still see output until I reboot the system and then I get nothing from the new card.. Is there something wrong with the new card?
Is there a power issue? I had initially only 1 6Pin PCI-E power connector and the card fans were not spinning up until I had plugged in 2x 6Pin Power cables...
Looking forward to some help..
Do I need to modify something else? what is the problem..
Is there an option in the bios to switch to check pcie for primary graphics? If so that's the one you want to select.
I believe the saw this option in the BIOS for Primary Graphics.. I have not tried this one yet.. what happens if I put it on PCI-E and then still don't get display? Will I be able to get output from iGPU or do I need to reset BIOS then? Not sure how to go about that if i need too... USB BIOS backup I assume..
You should have it enabled to pcie for primary. Make sure proper cables are connected and seated. Make sure the monitor is plugged into your card and not your igpu/ motherboard port. If all these are in order your gpu should work. If not I would say you have a defective card.
I will try this when I get home from work and let you know how I get on.
Hey my pleasure. Also, the 6 +2 pin is for the most expensive boards that need 8 pins. It's fine to leave the spair 2 dangling or even tied back with a bread tie or something. Gotta have both 6 on their though. Good luck!