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Mobo with 2 PCI-Express x8 /16

Last response: in Systems
January 26, 2007 8:10:03 PM

Hello everyone.

I'm finishing a build with the choice of the motherboard for C2D
I have a Radeon X1950 Ultimate, but also a RAID ARECA ARC-1210 which requires a PCI-Express x8 connector

Thus it seems I have to find a mobo with 2 x16 PCI connectors. Given the RAID card works at x8 will it reduce the spee of the graphic card ?

If not which mobo would you recommend ?

I'm considering the MSI Platinum Powerup but any advice is welcomed


More about : mobo pci express

January 26, 2007 8:41:08 PM

The nForce 680i will do 2 x16 slots and 1 x8 slot... I doubt you will want it because of your ATI video card.
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January 26, 2007 8:46:38 PM

The nForce 680i will do 2 x16 slots and 1 x8 slot... I doubt you will want it because of your ATI video card.

explain that statement please.

He thinks ATI and nVidia can't play nice.
January 26, 2007 8:49:05 PM

as im sure you know he would be wrong to think so.

Correct. :) 
January 26, 2007 8:50:10 PM

the reason for that will be physical size of the slot i would imagine.

Yeah exactly. The physical port is x8 but I don't know which is the speed needed

So which mb are you using ?
I'm looking for the most simple mobo since I already have my good old X-Fi Pro for sound and The PCI-e RAID controller, no need for wifi LAN is fine...


he does not need 4 of them and sure as hell does not need to spend all that cash.

Which is perfectly fine with me ;-)

January 26, 2007 9:09:45 PM

Just about anything with ATI's Xpress200 with crossfire support will do that. I have a Asus A8R-MVP that shares the x16 into 2 slots when you go crossfire, or presumably just have 2 x16 cards. In my case, the second slot is fitted with a terminator because I believe that you don't actually get 2 x8s, but a shared x16, there's a difference.

Something with ATI's Xpress3200 crossfire chipset like the Asus A8R32-MVP, has 2 dedicated x16 lanes so whether you use one or both slots, you get the full x16 lane for each card.
January 27, 2007 1:20:00 PM

A good number of motherboards restrict 16Xslots to video cards only, so an 8x card will fit but it wont work due to bios limitation. The 680 i would work, and if you wont be using crossfire should be fine.