a brief confirm nvidia SLI on GA-EX58 UD3R, and officially supports
first i download the official BIOS on GIGABYTE website, F5
here is the link, http://www.gigabyte.com.tw/Support/...=2989#anchor_os

Test enviroment.
CPU, Intel core i7 975 sample @ 4.4GHz
CPU HSF, Thermalright utlra 120
M/B, GIGABYTE GA-EX58-UD3R , F5
Mermory, Kingston KHX16000D3T 3CH , 2GHz 1.65v
VGA, GIGABYTE GV-N28-1GH-B *2
PSU, Silverstone 1200w
NVdriver:Physx off
OS,Vista 32bit

Hardware picture


Turn on SLI


200Bclk*20, 4.4GHz, 1.45v for CPU, QPI-VTT 1.41v, DDR3-2GHz 1.66v
GTX 280 oc to 700GPU/1300GDDR3


if can't see the pictures, check this link
http://forums.vr-zone.com/hardware-...tml#post6580574