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slow SLI..

post #1 of 44
Thread Starter 
ok.
today for the first time in my life i had 2X 8800GTS 640MB in sli.

puts the new 8800gts in my rig and fired up.ok happy days..


thing is my computer plays games faster whan it's not in sli mode,
in other words sli is slower, why is this need help.

i have spent 1500 uk pounds on this computer up to yet.help.

NO SLI 160FPS SLI 80 FPS
    
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post #2 of 44
Is SLI enabled in the BIOS? Is the bridge on securely? Did you enable SLI in the Drivers?
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post #3 of 44
Thread Starter 
Quote:
Originally Posted by Jubbi View Post
Is SLI enabled in the BIOS? Is the bridge on securely? Did you enable SLI in the Drivers?
yep yep yep.

checked it all ..installed the newest drivers and all but no luck.
    
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post #4 of 44
I've heard there have been all sorts of problems with 8800 SLI in Vista.
post #5 of 44
Hope this don't happen to me....
 
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post #6 of 44
Thread Starter 
Quote:
Originally Posted by Namrac View Post
I've heard there have been all sorts of problems with 8800 SLI in Vista.
one thing I'm not in vista I'm in xp pro
    
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post #7 of 44
Hows your case temps look? Get every kind of cooling monitoring software going and see whats going on running prime95. Then check gpu temps with ATItool. My brother had a similar setup like you and there was so much heat he had to go liquid cooling but I dont even know if it helped because i havent talked to him in a while.
    
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post #8 of 44
What are you using to test SLI btw..? Not all titles support SLI

My advice is give 3DMark06 a run see what you get.
 
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CaseAudio
Lian Li PC-O8WX ATX Cube Case Logitech Z906 5.1 Surround 
CPUMotherboardGraphicsRAM
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2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
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post #9 of 44
Thread Starter 
Quote:
Originally Posted by shaggy56 View Post
Hows your case temps look? Get every kind of cooling monitoring software going and see whats going on running prime95.Then check gpu temps with ATItool
temp full load is 40c

idle 25c

gts is 60c load..

gts idle..45 c
    
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post #10 of 44
Thread Starter 
Quote:
Originally Posted by Mhill2029 View Post
What are you using to test SLI btw..? Not all titles support SLI
need for speed corbon
need for speed under grund 2
need for speed most wonted .
trains simulator 2006.
TmNations
World Racing 2 Demo

man there is loads
    
CPUMotherboardGraphicsRAM
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Hard DriveOptical DriveCoolingOS
samsung ssd  SUPER WRITE MASTER. Cooler Master Hyper 212 Evo win10 
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MouseAudio
logitech m185 onbord. 
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CPUMotherboardGraphicsRAM
6700k z 170 pro gameing GTX980 16 
Hard DriveOptical DriveCoolingOS
samsung ssd  SUPER WRITE MASTER. Cooler Master Hyper 212 Evo win10 
MonitorKeyboardPowerCase
ASUS VW 199D g510 G7.. BitFenix Merc Beta Mid ATX Case 
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logitech m185 onbord. 
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