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Cant get 8800GT SLI to work

Forum Graphic & Displays : Nvidia - Cant get 8800GT SLI to work

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harock   06-18-2008 at 02:33:18 PM

These Questions have most likly been ask many times so heres my stick onto the fire

ok first here is my set up

MotherBoard: GA M55sli - S4
CPU: AM2 5800 + 2.8Ghz
Sound Card: On board
Hard Drive: 500Gb
GPU: 2 x 8800GT's 1 is gigabyte 1 is generic (EliteGroup)
PSU: Coolermaster 650W

ok i have been trying to get this thing working for the passt week with no luck
i have installed the 2nd card but it has not poped up in my device manager i have tried each card one at a time and they are both working
i have reinstall the lastest drivers for both my video cards and motherboard. i think my powersupply is powerfull enof and i have checked there doesnt seem to be any setting in the bios to activate SLI and theres no switches on the motherboard itself

anyideas :??:

Cheers

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englandr753   06-18-2008 at 02:46:44 PM
- 1 +

Do you have an additional molex power plug connected to the molex power connector on your motherboard above the 1st video card and the processor? (you have to have this when you run two cards)

Check the bridge connector and make sure its correctly seated between the two video cards.

There is a setting that you go into to "enable SLI". Go to your control panel, then Nvidia control panel and then "set SLI configuration" and make sure SLI is enabled.

I had that board and it worked great.


Message edited by englandr753 on 06-18-2008 at 02:53:31 PM
Reply to englandr753
harock   06-18-2008 at 03:25:54 PM
- 0 +

yep thx i pluged that in thou it didnt have any effect its still not detecting the 2nd card thx anyway :(


Message edited by harock on 06-18-2008 at 03:34:34 PM
Reply to harock
jtelep   09-10-2008 at 02:04:31 AM
- 0 +

You need to change all of the jumpers (4-pin blocks) betweeen the 2 X16 PCI-e slots. I think there are 2 long rows and 4 short rows. By default the board comes in a single card configuration and will not recognize the other card until you make the change to those jumpers. Be careful though as I had many of the actual metal portions of the jumpers remaining stuck to the board after the block was removed! Tedious but in the end worth it.

Reply to jtelep
V3NOM   09-10-2008 at 10:12:23 AM
- 0 +

hey, never having tried SLI before, but hoping to at some point in the near future, does it matter which end of the bridge is connect to which card?

Message quoted 1 times
Reply to V3NOM
yetyhunter   09-10-2008 at 02:08:47 PM
- 0 +

V3NOM wrote :

hey, never having tried SLI before, but hoping to at some point in the near future, does it matter which end of the bridge is connect to which card?


Yes it matters.

Message quoted 1 times
Reply to yetyhunter
Bronze Graphics badge mousemonkey   09-10-2008 at 07:02:44 PM
- 0 +

yetyhunter wrote :

Yes it matters.


Provide some proof please.

------------------------------ [:mousemonkey:1] http://img29.imageshack.us/img29/5041/vr2009champ.jpg
 Reply to mousemonkey
V3NOM   09-11-2008 at 09:02:38 AM
- 0 +

yeah, i would kind of like an answer, something along the lines of "this end of the bridge connects to this card" -_-

Message quoted 1 times
Reply to V3NOM
Bronze Graphics badge mousemonkey   09-11-2008 at 06:32:40 PM
- 0 +

V3NOM wrote :

yeah, i would kind of like an answer, something along the lines of "this end of the bridge connects to this card" -_-


There are two types of SLI bridge, one for a dual card set up and one for a triple card and as far as I'm aware they only come packaged with the motherboard and I have not seen them on sale on their own but someone else might have. A dual card SLI bridge can be put onto the cards either way round and I have not seen any performance difference if I put on upside down (although there are no direction or PCI-e1/PCI-e2 markings) as it where.

HTH.

------------------------------ [:mousemonkey:1] http://img29.imageshack.us/img29/5041/vr2009champ.jpg
 Reply to mousemonkey
V3NOM   09-13-2008 at 09:49:24 AM
- 0 +

ok, thanks.

Reply to V3NOM
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