I have a weird conflict in my PC. When i start Windows 7 with Gigabyte graphic card 630 GT 1 GB PCI-e installed and 2 memory RAM modules 2 GB each, my graphic card is not recognized by Windows, i see an exclamation in PCI Express in Windows Device Drivers.
I had tried with memory in Dual Channel and without, and the problem continue. When i remove one RAM module and run computer only with 2 GB, my graphic graphic card is recognized and problem dissapear.
I never saw this kind of error and i need your help please.
CPU Core 2 Duo 3.0
Motherboard AsRock conree1333-esata2
2xDDR2 667 Mhz 2 GB each
Graphic Card Gigabyte GT630 1GB DDR3 PCI-express