Help with SLI on new PC

milamber

Just setup a new PC (I had some help because I barely know what I'm doing but they had to leave and now I'm stuck) and having trouble getting the GTX 570s working.

The mobo PCI-E cables are 12 pins at one end split off to a pair of 6+2 pin ends. The 570s are 6+8 pin. My power supply (AX-850) only has room for one PCI-E cable. There are pins free but the PCI-E cable won't fit into them.

I've tried with just the one 570 but I get a blank screen. I had to disconnect the PCI-E cable just to get the onboard GPU going.

I don't have a manual and Asus don't have one on their website.

milamber · 02-05-2012, 13:17 | posts: 710 | Location: Australia

Well, I got one gtx 570 working on the 2nd slot. But now I need to figure out why I can't fit another PCI-E cable into the PSU.

jayman · 02-05-2012, 13:30 | posts: 47

that corsair AX850 it's not the right PSU you need,
http://www.newegg.com/Product/Produc...82E16817139011
Also if your using the Asrock mainboard you posted, look on Asrock for the manual
http://www.asrock.com/mb/manual.asp?...xtreme7%20Gen3

milamber · 02-05-2012, 13:39 | posts: 710 | Location: Australia

I had my SLI GTX 570 and Corsair AX850 running with an Asus P8P67 Pro a few months ago no trouble. I didn't install that PC myself though.

FatBoyNL · 02-05-2012, 13:44 | posts: 1,112 | Location: The Netherlands

Just found a pic of your PSU and it seems that you should be able to connect the cables normally for SLI.
See http://www.corsair.com/media/cms/Blo...-PSU/Pic_2.JPG

The connectors in the green section are the ones to be used. Are you sure that you're using the right cables?

CoreyPL · 02-05-2012, 21:07 | posts: 915 | Location: Poland

Remember, that ASRock suggests also using molex power connector on motherboard, when doing a SLI of high-powered cards. You can find this molex connector above first PCI-E x16 slot - it is this black one with 4 pins.