Thursday, November 04, 2010

 

SLI on Crossfire Mobos

http://xdevs.com/e107_plugins/content/content.php?content.30
Better Website:e
http://www.slipatch.com

Tested SLI working properly with the following hardware/software

ASUS P5E3 Deluxe Motherboard - X38 Chipset
ASUS SLI Ribbon Cable
2x ASUS 8800 GTX 768MB Graphics Card - (Configured for SLI)
1x Gigabyte 8800GT 512MB Graphics Card - (Configured for pure Physx)

Windows XP 32-bit
Slipatch 1.0
Quake 4 - Nexus Hub Tunnel Level

In the Nvidia Driver Configuration panel, the "enable SLI Indicator" option was set.
In Quake console,' com_showfps 1' was set, resolution to 1600x1200, with full eye-candy enabled.
Got around 60FPS most of the time, with smooth game play. (Looks like some cap is set on the fps in the game engine, else frame rates would have gone up by leaps & bounds)

In the past, without SLI, the screen used to stutter, at some places, particularly when viewing those huge pipes, but with SLI, rendering as as smooth and vibrant as molten lava!!

One thing to worry would be temperatures.
Could not touch the GPU for more than 2 seconds!
Moreover, all the 3 GPUs are so close to each other, that there would be only some 2 to 3 mm of gap between them.
Have to think some way of cooling this beast!!!

8800GTX GPU 1 was in the blue slot next to the CPU
8800GTX GPU 2 was in the next blue PCI-E slot
8800GT was kept in the left most black slot

See http://www.youtube.com/watch?v=TqVP3XYF8Js at 5:13, The glow in those pipes looked amazing!

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