hello, i just completed new pc from fresh components:
MOBO: GIGABYTE Z77-D3H
CPU: Intel Core i5-3470
MEM: corsair 8GB KIT DDR3 1600MHz CL9 XMS3
PSU: Corsair CX500
GFX: ZOTAC GeForce GTX 650 Ti 1GB
after connecting all componets (+ feeding gfx card with 6pin extra power) computer starts but freezes on bios page asking for del/f11/f9, but keyboard doesn't react (only for ctrl-alt-del)
tried to connect gfx card to x4 slot with same result
after unplug of gfx card and connecting onboard intel gfx computer boots normally
i had tried inserting gfx card into other pc and it worked ok
can anybody suggest further steps ?
many thanks for any help