Sign-in / Sign-up
Your question
Solved

Why do most (if not all) Micro ATX motherboards sacrifice a PCI Express slot in a dual SLI/xFire setup?

Tags:
  • Dual
  • ATX
  • SLI
  • Motherboards
  • PCI Express
Last response: in Motherboards
November 27, 2013 1:27:16 PM

Hi I'm new to these forums and any help you could offer would be much appreciated :) 

I'm looking to build a Micro ATX gaming rig with dual SLI/xFire setup, in a case that has five expansion slots. I also have a x1 PCI-e TV Tuner which I was looking to install alongside. I have noticed however that most Micro ATX mobos I have looked at such as the ASUS Maximus VI Gene, have a PCI-e x4 slot that would be inaccessible in a multiple GPU setup.

My question, is there a reason why gaming/micro atx motherboards favour the first PCI-e slot to be x16 (distance from graphics cards to CPU maybe) and not any other way? My setup would work with the above mentioned motherboard if the PCI-e x4 was first, followed by dual x16 slots.

Many thanks :ange: 

More about : micro atx motherboards sacrifice pci express slot dual sli xfire setup

Best solution

a b V Motherboard
November 27, 2013 1:31:22 PM

You are using a micro atx board in an enthusiast role. They are not designed for that, get a full ATX board or deal with the lack of slots.

Also the closer the slot is to the CPU the better the transmission rates are.
Share
a b V Motherboard
November 27, 2013 1:33:26 PM

Because it's a smaller form factor, can't mash everything onto it, and as ahnilated said, when you talk CPU's and MOBO even microscopic scales have effects on performance.
m
0
l
November 27, 2013 1:49:11 PM

I did wonder, thanks for the quick responses :) 
m
0
l