I recently picked up this motherboard from local store. Everytging works fine, well almost. Motherboard can't detect gpu. Gpu does power on, but after a while bios beeps 1 long 2 shorts (gpu error). I noticed that motherboard does not have sli switch card. Is that ther reason of not working gpu? It's not a probpem with gpu, I tested it, works fine on other motherboards.