Intel 965p motherboards can support Quad SLI?

[Manoj]

I thought that both the PCI-e slots are running at different speeds.

http://www.tbreak.com/forums/showthread.php?p=266475

[djoekie]

I thought that both the PCI-e slots are running at different speeds.

http://www.tbreak.com/forums/showthread.php?p=266475
Well if you are talking about hardware then, yes it works but you are limiting one card (or two if you're using the 7950GX) with only pci-e 4x.

If you're talking about software then SLI will offcially not work on non-nvidia chipsets. Workarounds are avaiable btw as you see.

[Ad1tya]

Hmm.. Interesting....

I thought the 965's wont allow it at all :S..> Even w/ workarounds

Even though, the 2nd PCI-e Slot is x4 btw ... Not x8 even.. So there will be a MAJOR performance hit..

[taemun]

Even though, the 2nd PCI-e Slot is x4 btw ... Not x8 even.. So there will be a MAJOR performance hit..

/me shudders at the thought of a 7950GX2 (2 cores) on a PCIe 4x bus .... :mad: :(

[Andrewv]

I saw it today P965 + QuadSLI (http://www.tbreak.com/forums/showthread.php?p=266475) too ... maybe it right

[ShiningArcanine]

You know, I do not understand why the motherboard manufacturers did not make it possible to run two PCI Express cards at 8x/8x or two PCI Express cards at 16x/4x with a jumper or some BIOS setting.

There is nothing stopping them from doing that. Then again, I guess there is Intel.

[Ad1tya]

t looks like Quad SLI can be enabled on Conroe / Gigabyte 965P mobo after all, at least on ours :) Due to certain reasons i won't post any numbers. Take a look :

Certain reasons include, that the No.'s SUCK... Lol..

[Mr. Popo]

What about running Quad-SLI on a 975X system?

[ShiningArcanine]

Certain reasons include, that the No.'s SUCK... Lol..
He might be under a non-disclosure agreement.

[tdx]

This is really cool, but, will the general public (i.e. us) ever get our hands on these drivers?

Even the hacked 975x driver is near impossible to find. Will this one be any different, or will it remain a bragging tool for a select few?

[alucasa]

Why wouldn't the guy post any numbers? Maybe, he couldn't get any numbers.

[Ad1tya]

How can he be under an NDA?

Quad SLi 7950GX2's have been launched long back.

He got it to work, thats fine, but the no's suck. I can bet on that. 16x + 4x Quad SLi isnt exactly any good...

[ShiningArcanine]

He has a Gigabyte GA-965P-DQ6 before everyone else. He might be under a NDA for how SLI performs with it.

[Funky]

Umm, board does not even suppor SLI officially. So where does the question of NDA comes into picture? Maybe he himself knowns :S:

[grimREEFER]

my guesstimate:
sam told him not to post numbers lol

[ScottFern]

No offense but why would someone want Quad SLI? Seems a little outrageous at the moment.

[Vric]

No offense but why would someone want Quad SLI? Seems a little outrageous at the moment.
If Quad Sli work, that mean SLI is working too, and this is much more interesting...

[Ad1tya]

@ Vric, SLi would work yes, but it would be in the same way.. x16 for the first card, and x4 for the 2nd Card.. Major Performance hit :).

[djoekie]

PCI 132 MB/s
AGP 8X 2,100 MB/s
PCI Express 1x 500 MB/s
PCI Express 2x 1000 MB/s
PCI Express 4x 2000 MB/s
PCI Express 8x 4000 MB/s
PCI Express 16x 8000 MB/s
PCI Express 32x 16000 MB/s

I could imagine that putting a simple single card in that pci-e 4x slot wouldn't have a large impact on its performance. A dual card like Nvidia 7950GX however would be seriously slowed down because each core would get only two pci-e lanes for itself.

[Vric]

@ Vric, SLi would work yes, but it would be in the same way.. x16 for the first card, and x4 for the 2nd Card.. Major Performance hit :).
Well I want to see numbers and not go "on paper". Performance hit between 16x and 8x isn't the end of the world. Maybe 8x and 4x... well, we will see.