Sli dropping FPS - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > System Upgrades
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 06-06-2008, 02:54 AM   #1 (permalink)
Newb Techie
 
Join Date: Jun 2008
Posts: 4
Default Sli dropping FPS

I just recently bought a second 8800 gt from evga same type as the one i previously had and ran it in sli. When I loaded any game while using SLI my FPS dropped by about 20-30 and I cant figure out why. Im using a 780i evga motherboard which is the same brand as the video cards.

Newegg.com - EVGA 512-P3-N802-AR GeForce 8800GT Superclocked 512MB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready SLI Supported Video Card - Desktop Graphics / Video Cards
Newegg.com - EVGA 132-CK-NF78-A1 LGA 775 NVIDIA nForce 780i SLI ATX Intel Motherboard - Intel Motherboards
__________________

modek is offline  
Old 06-06-2008, 03:02 AM   #2 (permalink)
Monster Techie
 
brinks's Avatar
 
Join Date: Sep 2004
Location: Canada
Posts: 1,144
Default Re: Sli dropping FPS

Do you have enough power to run 2 cards?
__________________

brinks is offline  
Old 06-06-2008, 03:09 AM   #3 (permalink)
Newb Techie
 
Join Date: Jun 2008
Posts: 4
Default Re: Sli dropping FPS

650 watt power suply thats built for sli and the recommended for these cards in slie is 500 so i should be in the clear, But the thing is that i switched off sli and didn't uplug the card to test to see if i was really getting lower fps and it raised my fps when i unchecked the sli thing in nvidia control panel.
modek is offline  
Old 06-06-2008, 03:22 AM   #4 (permalink)
Monster Techie
 
brinks's Avatar
 
Join Date: Sep 2004
Location: Canada
Posts: 1,144
Default Re: Sli dropping FPS

Try switching the cards around and see how one compares to the other one. Maybe you got a bad card?
brinks is offline  
Old 06-06-2008, 03:32 AM   #5 (permalink)
Newb Techie
 
Join Date: Jun 2008
Posts: 4
Default Re: Sli dropping FPS

im runnin the new card as the primary card with monitor plugged into it, so when i removed sli on it it ran fine, dunno.
modek is offline  
Old 06-06-2008, 03:38 AM   #6 (permalink)
Monster Techie
 
brinks's Avatar
 
Join Date: Sep 2004
Location: Canada
Posts: 1,144
Default Re: Sli dropping FPS

Try other games and see what results you get, maybe it's just this particular game. Maybe upgrade the drivers if you haven't done so already. Maybe the sli bridge connector is bad?
Any heat issues?

I'm just throwing out suggestions since I really don't know what the problem is.
brinks is offline  
Old 06-06-2008, 03:42 AM   #7 (permalink)
Newb Techie
 
Join Date: Jun 2008
Posts: 4
Default Re: Sli dropping FPS

Well thnx for trying, ive tried a few games

Cod4
Age of Conan
Garry's Mod
Counter Strike

all gettting lower fps

my old vid card is running at 85-90c at load which i think really isny healthy but hasnt really locked up or given me any issues.
modek is offline  
Old 06-06-2008, 10:35 AM   #8 (permalink)
Lord Techie
 
veedubfreak's Avatar
 
Join Date: Jul 2007
Posts: 6,979
Default Re: Sli dropping FPS

Something isnt configured correctly. I get nearly double the framerate with SLI enabled in AoC and CoD4. Not sure abot the other 2 games. I know i get a framerate drop with SLI turned on in WoW.
__________________
Nothing to see here.
veedubfreak is offline  
Old 06-08-2008, 10:50 AM   #9 (permalink)
TF's First Dry Ice User!
 
Peter.Cort's Avatar
 
Join Date: Jul 2007
Location: Boston, MA
Posts: 5,018
Default Re: Sli dropping FPS

so far your 2 posts haven't been very productive SonOfRedmo0n. I suggest you stop throwing out your opinions without any backing for your own well being on the forums.

and to the OP you were able to run both cards and didn't have any problems with either correct? also try running each card in a different PCI-e slot. you might have a bad slot.
__________________
A notice to EVERYONE who has posted here with a computer problem, I highly encourage you to keep current with the forums, even if it's browsing for 10-15 minutes during lunch, or before you go to bed at night. There are many things that you can learn and apply to future issues. My goal is to help people get to a point where they can use their own knowledge to help themselves, and others.

Also please use the search button. You've got a 50/50 chance that someone's asked your question and we've answered it.
Peter.Cort is offline  
Old 06-08-2008, 12:17 PM   #10 (permalink)
Wizard Techie
 
Drizzt's Avatar
 
Join Date: Oct 2007
Location: Somewhere inbetween FL and NY
Posts: 3,187
Send a message via AIM to Drizzt
Default Re: Sli dropping FPS

Quote:
Originally Posted by SonOfRedmo0n View Post
That's because WoW sucks.
Did you join JUST to say this?

I know you said they are the same exact card. But just double check that also. Is one superclocked and one isn't?
__________________

__________________
CPU:Q6600 G0 @ 3.7Ghz (410x9 w/1.475v)
Motherboard:Asus P5E X38
Memory:2x2GB OCZ Reapers DDR2 1066
Graphics Card:GTX460 768MB @ 880/1760/2000
Hard Drive:2x WD Black 1TB
Power Supply:Xion 800W
Case:3DAurora
CPU cooling: H50
GPU cooling: Best Stock Cooling I Have Ever Had
Monitor:24" LG
Drizzt is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Tech Forums Official Crysis [Warhead] GPU Benchmark Thread gurusan Overclocking and Modding 543 03-12-2010 12:32 AM
9800 GTX vs. SLI vs. 3-way SLI. vs. Quad SLI veg1992 New Technology and Products 2 05-31-2008 10:59 AM
SLI ready RAM? Is it any better? What does SLI mean for RAM? StealthTools Overclocking and Modding 12 04-17-2008 09:27 PM
SLI + Dual Monitors WORKS.... Black Falcon 921 Monitors, Printers and Peripherals 4 03-22-2008 10:34 AM
NVIDIA Launching 3 way SLI Osiris Monitors, Printers and Peripherals 0 12-12-2007 09:55 PM



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:03 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.