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Games running choppy or top of screen only in SLI mode

Last response: in Graphics & Displays
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November 4, 2011 7:22:33 PM

I just bought another GTX 550 Ti video card in hopes of running both cards in SLI for better gaming FPS. When I enable SLI. Game play is very choppy or I only see the top half of the game. Also, when I disable SLI my games run fine. I just didn't know if anyone knew why I'm having problems in SLI mode ?
This is what I have for a PC:
My Computer is as of 11/3/11
Motherboard is: ASUS, M2N32-SLI, Deluxe
AMD Socket, AM2+/AM2
NVIDIA nforce 590 SLI
2xPCI-E x16 Slot,Nvidia SLI Support, At Fullx16x16 Speed
Dual Channel DDR2 800/667/533 Memory/Ram
Bios updated 5/3/11 to 5002
CPU/Prossesor is: AMD Athlon 64x2 Dual Core Processor 6400+
P/S is a: Ultra Xfinity Dual Rail Technology 600 Watt. ATX, SLI ready
Ram/Memory is:
Total Memory is : 3070MB
4 sticks total
2 sticks are: 1024MB,667mhz(speed) 64bit
2 sticks are: 512MB,667mhz(speed) 64bit
2 Hard Drives:
Maxtor S TM3200820AS SCSI
WDC WD32 00AAKS-00B3A
DVD/CD Drives:
TSSTcorp CD/DVDW SH-S182D
ASUS SDRW-08D1S-U USB
Grafix Card's:( 2) One Evga Geforce GTX 550Ti and one PNY Geforce GTX 550Ti as of right now. They are not running in SLI mode. SLI Disabled.
Sound Blaster Sound card
Monitor is: ASUS 24" HD Running at 1920x1080px32
OS is: Windows XP

I also just ordered a new CPU for my motherboard. AMD Phenom IIx4 955 Quad Core Black edition.

I hoping the problem with running SLI is my CPU getting bottlenecked from the two GTX 550 Ti video cards in SLI mode. I was running two GT 9800 video cards before in SLI with no problems.
Also, when I disable SLI my games run fine. I just didn't know if anyone knew why I'm having problems in SLI mode ?
a c 172 U Graphics card
November 4, 2011 7:56:14 PM

install the SLI bridge??
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Best solution

a b U Graphics card
November 4, 2011 8:45:46 PM

Yeah, make sure the SLi bridge is on and also, you might be getting screen tearing. Turn on V-sync. Tell me if it helps.
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November 14, 2011 8:37:50 AM

Best answer selected by kegga62.
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a b U Graphics card
November 14, 2011 3:55:13 PM

kegga62 said:
Best answer selected by kegga62.

nDid it work?
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