"ASRock says :
We found that VIA PT880 PRO/Ultra chipset does not support GEN2 mode VGA card.
The only solution is to set 8800GT PCIE VGA card to GEN1 mode.
We have tested ASUS EN8800GT PCIE card.
After flashing GEN1 mode BIOS for ASUS EN8800GT PCIE card, it works fine on PT880 PRO/Ultra chipset motherboard.
If user asks the issue, please suggest to user to contact VGA card vender to get the VGA BIOS with GEN1 mode for your 8800GT PCIE VGA card"
Zda se, ze aspon nejake reseni pro nas s VIA MB. Teda krome prechodu na intel...
EDIT: a jeste maly bench (nikoliv muj) pro hrubou predstavu (teda ne ze by 3dmark mel nejakou vypovidaci hodnotu) :
*ASRock 775Dual-VSTA, VIA PT880
*Intel E6600, 2.4GHz@2.66GHz
*2x1GB G.Skill DDR2-800
*eVGA 8800GT KO (stock speeds)
3DMark01SE: 33,101 3DMarks
3DMark03: 34,393 3DMarks
3DMark05: 14,527 3DMarks
3DMark06: 9,284 3DMarks