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flinstone

macrumors member
Original poster
Apr 14, 2005
30
0
Amsterdam
Hi all,
I was wondering if I can put in two nVidia 8800GT's to boost performance (sins there are two pci-e 2.0 16x slots now) And if so will it only work in Windows'???
Thanks...
 
The simple answer is no, you won't be able to run SLI on your current machine.

The detailed answer is you won't be able to run it because of your motherboard. SLI will only work with nForce chipsets, and since it's awfully unlikely your current mainboard has one, you'll only be able to take advantage of the second GT by using it to drive additional displays, as Umbongo said previously. Your cards are SLI-ready, and SLI will work on all flavors of Windows XP and Vista (even Linux) but not any of the Mac platforms, in case you were wondering.
 
Actually, it is a simple driver switch that determines whether or not you can enable SLI. Pretty silly of NVIDIA for not making it work on most motherboards.
 
Nvidia does it to keep their motherboard business afloat. And yes, its really just a driver line that is used to enable/disable it, but Nvidia has encoded that sucker heavily.
 
I thought you needed two PCI Express x16 slots and that the Mac Pro only had 1 x16 and three x4s. Either way, Apple doesn't really seem to be trying to be gamer-friendly anymore.

The 8800GT is lightyears ahead of the overpriced, underpowered, two-and-a-half generation-old X1900XT, but they're charging $100 more than the retail on the PC-side... and you can't even SLI. I do see the 8800GT as the perfect top-of-the-line card for Apple (as to get a faster card you'd have to move up to the GTX, which is a lot more, and not always faster, if not the Ultra which is obscenely expensive), but the lack of in-between cards is sad (a 2600XT is not a mid-way between a 8800GT and a- oh right.. there's no low-end...)
 
I was reading ArsTech's system guide and they mentioned something: apparently the Quadro cards can be SLI-ed using any motherboard. Does this hold true for the mac?
 
I was reading ArsTech's system guide and they mentioned something: apparently the Quadro cards can be SLI-ed using any motherboard. Does this hold true for the mac?

Maybe, but OSX doesn't support it (I assume you still need application support). It would be interesting to get an answer on though.
 
To do SLI with two 8800s, if its possible, you'd need the SLI bridge for one.

Also, you'd have to have hacked drivers that allow SLI on any chipset, like they had for the 7300GT.
 
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