Vista+SLI problems

[Guest]

I just bought a Vista Home Premium 64bit computer and am running with 2 MSI
8800 GTX video cards. The problem is, video games run slower with SLI
enabled, much much slower. Turning off SLI significantly speeds the system
up.

I was wondering if anyone knew anything about this effect and if there is
any work around? I dont like owning a $500+ piece of worthless hardware in
my machine.

Any help or suggestions would be greatly appreciated.

Ron

 

[Dave]

What graphical settings have you tried in Nvidia Control Panel and which
games are you getting worse performance in?

 

[Carey Frisch [MVP]]

Do your games have a built-in SLI Profile or are they SLI optimized?
See the following: http://www.slizone.com/object/slizone2_game.html

Also see: http://www.directron.com/whatissli.html

SLI Zone User-to-User Forums:
http://forums.slizone.com/index.php?showforum=4

--
Carey Frisch
Microsoft MVP
Windows Shell/User

---------------------------------------------------------------

I just bought a Vista Home Premium 64bit computer and am running with 2 MSI
8800 GTX video cards. The problem is, video games run slower with SLI
enabled, much much slower. Turning off SLI significantly speeds the system
up.

I was wondering if anyone knew anything about this effect and if there is
any work around? I dont like owning a $500+ piece of worthless hardware in
my machine.

Any help or suggestions would be greatly appreciated.

Ron

 

[Charlie Tame]

I just bought a Vista Home Premium 64bit computer and am running with 2 MSI
8800 GTX video cards. The problem is, video games run slower with SLI
enabled, much much slower. Turning off SLI significantly speeds the system
up.

I was wondering if anyone knew anything about this effect and if there is
any work around? I dont like owning a $500+ piece of worthless hardware in
my machine.

Any help or suggestions would be greatly appreciated.

Ron

There can be conflicts with cards plugged into ordinary PCI slots when
PCIE slots are in use, your MB docs may have something on this or the
website... You could just try locating any PCI card you have in a
different slot.

You could also go into BIOS and find the setting for Plug and Play OS
(Y/N) and try setting it to N. (If there is one in your BIOS)

I had 2 X 7950s and the extra speed, about 5% wasn't worth the hassle
because switching between XP and Vista forced me to crawl under the desk
and swap connectors, under XP the cards were one way around, under Vista
the opposite, and no way with either setup with SLI engaged could you
get sensible resolutions, we're talking 640 X 480 here, you had to swap
the connectors

I gave up and put one card in another machine when it's overclocked BFG
card melted.

You might ask in the games group also, a lot of people find problems
when demanding performance and that would be the place. Obviously
drivers play a part so maybe it's a known problem.

 

[Guest]

I have not tinkered with any control panel settings as I really dont know
what they do.

Im playin Everquest which is not SLI optimized as far as I know.

If there is a setting I should be aware of or can try direct me to it.

Thanks,
Ron

 

[forty-nine]

I just bought a Vista Home Premium 64bit computer and am running with 2 MSI
8800 GTX video cards. The problem is, video games run slower with SLI
enabled, much much slower. Turning off SLI significantly speeds the
system
up.

I was wondering if anyone knew anything about this effect and if there is
any work around? I dont like owning a $500+ piece of worthless hardware
in
my machine.

Any help or suggestions would be greatly appreciated.

Ron

If you have XP, I'd dual boot to XP.
That's what I do.
If you don't have it, its worth the $100 to buy XP.

Vista, games, and SLI don't give good performance yet.
If I turn on SLI for "global settings"....even the Vista Mahjong games gets
jittery.

 

[Charlie Tame]

If you have XP, I'd dual boot to XP.
That's what I do.
If you don't have it, its worth the $100 to buy XP.

Vista, games, and SLI don't give good performance yet.
If I turn on SLI for "global settings"....even the Vista Mahjong games
gets jittery.

Really? I must admit I though SLI at $350 a card was not cost effective,
but the damned plug swapping I had to 2 because XP like 2 of the 4
monitor outputs but Vista only liked the opposite 2 was so much nuisance
that eventually I took the second 7950 out again.