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was: pci e extension cable? NOW PCI-e SPLITTER

Posted: Sat May 22, 2010 2:03 pm
by studiocampus
does anybody tryed to use all the pci_e slots of a supercomputer card (asus) bypassing the proximity problem of using double size cards by cable extensions for the slots?
PE-FLEX16-1new.jpeg

Re: motherboards and double module cards: pci e extension cable?

Posted: Sat May 22, 2010 2:24 pm
by studiocampus
take a look here:
http://www.mycableshop.com/items.asp?Cc ... atus=1&Tp=

or, for explanation

http://www.adexelec.com/pciexp.htm#PEXP4-SX-4/1


as reference motherboard, I'm thinking to asus supercomputer P6T6WS (4 pci_e to use for multi gpu plus one pci_e for the "pure" video card. A dream come true, but the slots are spaced for single slot cards.

news.....GeForce GTX 480 PCI-Express Scaling

Posted: Sat May 22, 2010 7:17 pm
by studiocampus
I was wondering on optimization of rare PCIe 2.0 x16 slots on current motherboards, focusing on the problem caused by proximity of the slots, than I found out this: PCI-E x16 -to- 2 PCI-E x8
RSC-R2UT-2E8R.jpg
you can find it here http://www.supermicro.com/support/resou ... riser.aspx
it basically splits a x16 in two x8.

well, the fact is that GTX 480 works good (2% less fast) on x8 ports
you can read about this here:

http://www.techpowerup.com/reviews/NVID ... ing/1.html

maybe this can solve a lot of problems, adding just a splitter and a couple of extension cables, as in my previous post.

bye

Re: was: pci e extension cable? NOW PCI-e SPLITTER

Posted: Sun May 23, 2010 12:54 am
by havensole
Should interesting to try out. I can see it handy for those boards that place the pcie ports right next to each other. The 8x versus 16x is not a big problem. The only time you would notice it is when Octane first loads the scene to the video card(s).