Overclock.net › Forums › Graphics Cards › NVIDIA › SLi without SLi bridge...
New Posts  All Forums:Forum Nav:

SLi without SLi bridge...

post #1 of 20
Thread Starter 
The title doesn't lie. I was testing my two cards, switching them around and what not when I forgot to add the bridge. When Vista loaded it said that SLi was enabled. I confirmed this with GPU-Z and ran 3DMark06 and got roughly the same score as before with the bridge.
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
post #2 of 20
maybe your mobo has an internal SLI switch card
?????????
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Quad Q6600 G0 @3000Mhz 1.35vcore Gigabyte GA-P35-DS3L Radeon HD 4870 1GB XFX 2GB DDR2 Novatech (2x1GB) + 1GB OCZ DDR2 800 
Hard DriveOptical DriveOSMonitor
160 GB WD SATA2 + 500 GB WD SATA 2 SONY DVD-RW 16x DL Windows XP Home Telefunken 22" 1366x768 (unknown model) 
KeyboardPowerCaseMouse
A4 Tech X7 Satellite 600W Some Sentey Case A4 Tech Glaser 5 
Mouse Pad
Generic 
  hide details  
Reply
?????????
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core 2 Quad Q6600 G0 @3000Mhz 1.35vcore Gigabyte GA-P35-DS3L Radeon HD 4870 1GB XFX 2GB DDR2 Novatech (2x1GB) + 1GB OCZ DDR2 800 
Hard DriveOptical DriveOSMonitor
160 GB WD SATA2 + 500 GB WD SATA 2 SONY DVD-RW 16x DL Windows XP Home Telefunken 22" 1366x768 (unknown model) 
KeyboardPowerCaseMouse
A4 Tech X7 Satellite 600W Some Sentey Case A4 Tech Glaser 5 
Mouse Pad
Generic 
  hide details  
Reply
post #3 of 20
The bridge is not really needed on slower/worse cards but as soon as you hit faster more powerful cards you will want the bridge because of the bandwidth.
His
(9 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen R5 1600 Asus Strix B350-F MSI GTX 1060 6GB OC 2 x 8gb Gskill Ripjaw V 3200MHZ 
Hard DriveOSMonitorPower
1TB Samsung EVO 850 Windows 10  X-Star 27" 1440p @ 96hz Silverstone Strider 1000w  
Case
Corsair 270R 
  hide details  
Reply
His
(9 items)
 
  
CPUMotherboardGraphicsRAM
Ryzen R5 1600 Asus Strix B350-F MSI GTX 1060 6GB OC 2 x 8gb Gskill Ripjaw V 3200MHZ 
Hard DriveOSMonitorPower
1TB Samsung EVO 850 Windows 10  X-Star 27" 1440p @ 96hz Silverstone Strider 1000w  
Case
Corsair 270R 
  hide details  
Reply
post #4 of 20
Thread Starter 
Just did a search on this matter and found out the 8600GT cards have a low bandwith and can communicate over the board, where as a more powerfull card would need the bridge to communicate with one another to work optimally. I would think my new 8800GTs would need the bridge since they have the 6-pin connector, while my old 8600GTs didn't.
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
post #5 of 20
Thread Starter 
This makes me think my cards are worthless.
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
post #6 of 20
Im pretty sure other cards will work too without bridge at reduced capacity.
I had two 7900gtx cards I ran in sli without a bridge.
Frankenputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6550 3.4 EVGA 780i 3870x2 2x1 Tracer 
Hard DriveOptical DriveOSMonitor
2x160 DVDRW Vista Ultimate 64bit 42 Panasonic 
KeyboardPowerCaseMouse
Yes BFG 800 CM MX518 
Mouse Pad
Yes 
  hide details  
Reply
Frankenputer
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6550 3.4 EVGA 780i 3870x2 2x1 Tracer 
Hard DriveOptical DriveOSMonitor
2x160 DVDRW Vista Ultimate 64bit 42 Panasonic 
KeyboardPowerCaseMouse
Yes BFG 800 CM MX518 
Mouse Pad
Yes 
  hide details  
Reply
post #7 of 20
unbeknownst to many, this is totally possible... the SLI bridge just increases bandwidth so the cards communicate more easily (really only needed by higher end cards)

to quote wikipedia, the God of All Knowledge:
Quote:
The SLI bridge is used to reduce bandwidth constraints and send data between both graphics cards directly. It is possible to run SLI without using the bridge connector on a pair of low-end to mid-range graphics cards (e.g. 7100GS or 6600GT) with Nvidia's Forceware drivers 80.XX or later. Since these graphics cards do not use as much bandwidth, data can be relayed through just the chipsets on the motherboard. However, if no SLI bridge is used on two high-end graphics cards, the performance suffers severely as the chipset does not have enough bandwidth.
post #8 of 20
Thread Starter 
Quote:
Originally Posted by lsclincoln View Post
Im pretty sure other cards will work too without bridge at reduced capacity.
I had two 7900gtx cards I ran in sli without a bridge.
I had to take a second look at your avatar.
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
post #9 of 20
Thread Starter 
I'm taking the 8800GTs back. I don't think there worth the trouble. I will probably end up getting a 9000 series card after I get the money back from the two.
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
Black Matter
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon 64 X2 6400+ / Dual Core 3.2Ghz ASUS CROSSHAIR BFG 8800GT OC Edition 2x2GB OCZ SLI-Ready (PC6400) DDR2 800 
Hard DriveOptical DriveOSMonitor
WD Caviar 500GB (x2) sATA 1Tb | SG 1.5TB Barracuda LG BD\DVD-RW Windows 7 Ultimate 64bit Acer 23" H233H 
KeyboardPowerCaseMouse
Logitech MX3200 Wireless BFG 550-Watt RocketFish Full Aluminum Tower Logitech MX3200 Wireless 
Mouse Pad
My Couch 
  hide details  
Reply
post #10 of 20
Quote:
Originally Posted by Xx_xBLADEx_xX View Post
I had to take a second look at your avatar.
What are you seeing? all I see is a girl holding her *****^(-1)

*edit* Wait.... would the inverse of a cat be a mouse?
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › SLi without SLi bridge...