GTX 260 in SLI on pcie 1.0 mb...

First of all here is my build...

My PC...
Q6600 @ 3.0 Ghz (stock voltage)
Artic Cooling Freezer 7 Pro
ASROCK Penryn 1600SLI-110db
EVGA GTX260 Core 216 896MB Superclocked Edition
WD Black 1TB
WD Black 750GB
8GB (4X2GB) PC2 6400 Corsair XMS2 (DDR2800)
Sony DRU810A DVDRW
Pioneer DVDRW
Coolmax 950 PS (CUG-950B)
Antec NineHundred Ultimate Gamer Case
2 - Acer AL2223W 22” LCDs
Dual OS Boot
W7 Ultimate 64-Bit
XP Pro 32-Bit


I am looking at getting a 2nd identical GTX 260 to use for adding 2 extra monitors to my set up and to run some of the newer games in SLI (Metro 2033 specifically). I have a concern though. Below is the link for my motherboard...


http://www.asrock.com/mb/overview.asp?Model=Penryn1600SLI-110dB


It is a 650i mb and supports SLI, specifically for the GTX 260, but it is pcie 1.0 and will run SLI in only 8x8 instead of 16x8. I am just curious of what if any bottleneck would occur to run SLI using this board. If it is going to be quite significant then I may fore go spending $130 on an older GTX 260 and just use my old 7900 GTO for the additional monitors in addition to my GTX 260 for my primary monitors.

Also, If I do use the 7900 GTO I will have both cards each in a pcie 1.0 8x slot. Currently my GTX 260 is in the pcie 1.0 16x slot and it runs fine. Will I see a bottleneck with the GTX 260 in that 8x slot alone or will it run at it's full capacity?

I've thought about getting a different board but I just can't justify the cost of $70+ for an older board.

Any ideas or opinions are appreciated.

Thanks...EWB
4 answers Last reply
More about pcie
  1. 8x hardly bottlenecks a Radeon 5870 so a 260 will be fine.
  2. Thanks jryan388 for the reply. Just to be clear you do mean that my GTX 260 will operate without a bottleneck in an 8x pcie 1.0. I just want t make sure you didn't mean 8x pcie 2.0 instead (which is equal to pcie 1.0 16x). Thanks again...EWB
  3. I've also been toying with the idea of upgrading my GTX 260 to a GTS 450. They are around $130 on Newegg (depending on which one you get). Of all the benchmarks I've seen, the GTS 450 scores just under a hd 5770 and if overclocked will meet and often exceed the 5770.

    That said, and considering my current motherboard, would it be favorable to try a GTS 450 sli setup in my 650i board and sell my GTX 260 on eBay for @ $120 or so (that's what they are going for now). If I do that I will end up spending @ $130-$150 which is what I was considering for a 2nd GTX 260 anyway.

    Any thoughts are appreciated.

    Thanks...EWB
  4. Here is a member who recently posted this video, he bought a 2nd gtx 260,
    you need 3 like monitors. same resolution.
    http://www.youtube.com/watch?v=ubUUEHN9GJc
    nVidia 3D Vision Surround Checklist - What You Need to for Ultimate Gaming Linus Tech Tips
    LinusTechTips 593 videos
    http://www.youtube.com/watch?v=3Rz51v8Mmg0&feature=related
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