Two Geforce 760's and a LSI RAID card on one motherboard?

CPFCbus

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Jun 8, 2014
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Hello, I'd like to build a computer with two 760's and a LSI RAID card on the same motherboard. I've used OEM versions of the LSI RAID cards in servers over the years, and I've always been blown away by their performance, but these have always been on server motherboards that were paired up with the Dell or HP-branded version of the LSI card.

I'm sure if I bought a server motherboard I could use the LSI card, no problem, but I'd like to use a desktop board, and two video cards. Has anybody tried this? I was thinking about trying this with a board with as few onboard features as possible, hoping it would leave more open PCI-X lanes to the slots on the board.
 

terroralpha

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Jun 23, 2009
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i tried this. it was horrible. the drives (WD RE3 drives) were moving slow as molasses. far, far slower than on the built in intel ports.

i manage a cluster of Dell R720 servers. and before that I managed a cluster of PowerEdge 6800 servers so large that ConEd (NYC's main power provider) had to split off an underground power line from another grid to the building we housed them in. so as you can imagine I've had my fair share of experience with LSI and PERC controllers. no idea why. it just didn't work right
 

CPFCbus

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Jun 8, 2014
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Sorry Terroralpha, I didn't word my question very well.

I meant two GeForce 760's, not two PowerEdge 760's. :) I'm looking at building a personal computer with two videocards and an LSI RAID card on a workstation or enthusiast motherboard. I didn't know if anyone's had success with this before. Server RAID cards often have issues on non-server motherboards let alone without dual-SLI eating up PCI-X lanes.



 

terroralpha

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yea i know. the reason i mentioned that was to illustrate that actually know how to use the RAID card. and I did try to use an LSI card on a Z68 and X79 board. I had 4x SSDs in RAID 10 on one channel and 4x WD RE3 drives in RAID 5 on the other. both arrays moved slooooooooooooooow. and i could not figure out for the life of me why that was. those same drives performed better on the Intel controllers in the same configurations.