Originally posted by j369852147412
i want to get sli because my geforce 6600 isnt fast enough anymore and neither is my proccessor. i could upgrade to an sli motherboard but i think my proccessor is still too slow.
The only thing holding your processor back is the 533MHz FSB. I honestly doubt your processor is slowing your system down so much that you have to upgrade. You said you have a "gaming rig" so I assume you game. In that case, the only thing, potentially, holding you back is your video card.
Since you have AGP, there isn't much you can upgrade to for much longer. I recommend getting the 7800GS http://www.newegg.com/Product/Produc...2E16814130269.
It's the best AGP card you can get.
Upgrading to a PCIe board would end up costing you more money, if you chose to achieve the same or greater performance. If you do upgrade your board, I would get a 7600GT or a 7900GT, depending on how much money you have. (To answer your other question, yes a 7900GT is faster than 7600GT's SLI'd.) You may have to switch to DDR2 RAM, if you currently have DDR.
I personally recommend upgrading your video card right now, then saving for a new system in about a year when you need it more.