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9800gt sli problem

T

twitchee2

Limp Gawd
Joined
Nov 14, 2005
Messages
154
I have a i5 760 @2.93 with an MSI P55-GD65 mobo running 2 9800gt's in sli, or so it was. Everything worked perfectly until last night when I added some new parts. I just put in a TX850 psu(leaves lots of head room to upgrade), 16gb of ram and a new storage hdd. Ive got one card that works just fine and the 2nd is not being detected at all. I switched the cards out and got nothing, no video not sure if it posted or not. Drivers are the newest available. anyone have an idea? or where to start? could it be possible the card just up and died?
 
the card works and boots up fine on a different system. is there a setting i am missing somewhere?
 
check all the connections from the psu, um try resetting the cmos since you added more ram and if you were running different timing on the other ram that doesn't work with the new stuff.. i'm leaning toward the issue being memory first before it being the cards.
 
Well when i tested each card individually, i used the same pci-e socket with the same power connector. All the Ram is the same timing. i got 2 of the same 2x4gb sets. Ill play more with it. I know the card is not bad. It worked perfect in a different board, i just hooked it back up and bench tested it.
 
yep thats why i'm thinking its ram related. it could be the time, it could also be that you are putting a higher load on the NB and may require a slight voltage increase.
 
I think i got it down to psu related. You name it i tired every power configuration possible on the board. with no change.

I hooked my old ocz520w modstream i replaced just because its pushing 8 years old, and with the OCZ hooked up everything worked perfect, sli worked just fine with no issues... this is all with the new ram installed.
 
huh weird that it would just go bad like that.. at least its new so its still under warranty..
 
twitchee2 said:
the card works and boots up fine on a different system. is there a setting i am missing somewhere?
Click to expand...

First make sure you BIOS is up to date, remove all PCI/PCI express components. Second if your motherboard still uses the a battery to save you configuration, pull that out for 30 minutes. Press the bios reset switch. Place the battery back. Put the PCI/PCI express devices back. If it posts then it worked. If not, start examining the mothebroad for any swollent caps and such. If it posts and everything is gravy you might have to reformat the OS like I did for my crossfire system. Windows 7 for some odd reason didn't like the change in my hardware setup for some odd reason. But it's fixed now and everything is running great. Hopefully yours will also.
 
ive checked every bios setting along with my buddy. nothing wrong there. this install of windows is about 6 days old. its psu issues, thats what ive got it boiled down to.
 
well i confirmed that its a bad psu. went to BB bought a corsair gs700, plugged everything in. booted right up, sli was working as it should and there was no problems. I'm gonna call newegg tomorrow and figure it out.
 
So I am very confused. I confirmed what was the only logical explanation I could come up with, a PSU. I RMA'd the 850w corsair and received a brand new one today. the EXACT same issues are coming up. The 2nd card is not being detected at all, ive got nothing. Maybe the card has something bad going on with it?
 
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