Double check power lines to the GPU. Make sure the PCI is actually clicked in. Double check monitor cable. Double check monitor power. Try the same GPU in another system. Try another GPU in the new system.
Double check power lines to the GPU. Make sure the PCI is actually clicked in. Double check monitor cable. Double check monitor power. Try the same GPU in another system. Try another GPU in the new system.
Double check power lines to the GPU. Make sure the PCI is actually clicked in. Double check monitor cable. Double check monitor power. Try the same GPU in another system. Try another GPU in the new system.