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Started by Penn2170 | | 11 answers
Bad SLI Bridge? Terrible frames.
Hi. I have 2 gigabyte gtx 670's, i5 3570k @ 4.1Ghz, on a p8z77-v mobo. I also have a hx750 power supply. Each card runs fine on it's own but not so much on sli. Running with AFR I get frames constantly in the teens with an occasional blue frame in Battlefield. In titanfall, I get a bunch flickering and other artifacts. Video here: https://www.youtube.com/watch?v=EwsS3JoUZB8 Is it just a bad sli bridge? Could it be anything else? No matter what orientation I put the bridge in, it doesn't work.
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July 9, 2014 11:23:01 AM

Alexoferith said:
On Asus website, for this motherboard, in the spec it says "Supports NVIDIA® Quad-GPU SLI™ Technology *1". And "*1: With 2 PCIex16 graphics card." Now my worry is the "QUAD-GPU" bit. Your 660 is definitely not QUAD-GPU. I have been looking at this series of motherboard as well because I have a i5-2500k 3.3ghz cpu, looking to upgrade my motherboard but eventually I abandoned the idea due to the QUAD-GPU and 2 PCIe X16 cards. My two GT660 Ti are neither. My origingal motherboard is Z68XP-UD3P. Perhaps more experienced users out there can comment on this. But it makes me not to go for it.
The last thing I wanted to say is that have you tried turning the SLI bridge around. I mean have you tried it both way? I have posted a query earlier last week. In the end, I turned the bridge and plugged it in. The whole thing worked perfectly now. I thought that if the SLI bridge is plugged in the wrong way round, the system will not boot. Well, apparently not. It will boot and work as normal. Only noticed the problem when playing games.


So I bought a generic sli bridge for a few dollars about a week after I made this thread and the problem was completely resolved. Sorry I should have updated it. Thanks for the reply anyway and I really appreciate your help. Maybe your answer will help someone else.
July 9, 2014 6:05:41 AM

Alexoferith said:
On Asus website, for this motherboard, in the spec it says "Supports NVIDIA® Quad-GPU SLI™ Technology *1". And "*1: With 2 PCIex16 graphics card." Now my worry is the "QUAD-GPU" bit. Your 660 is definitely not QUAD-GPU. I have been looking at this series of motherboard as well because I have a i5-2500k 3.3ghz cpu, looking to upgrade my motherboard but eventually I abandoned the idea due to the QUAD-GPU and 2 PCIe X16 cards. My two GT660 Ti are neither. My origingal motherboard is Z68XP-UD3P. Perhaps more experienced users out there can comment on this. But it makes me not to go for it.
The last thing I wanted to say is that have you tried turning the SLI bridge around. I mean have you tried it both way? I have posted a query earlier last week. In the end, I turned the bridge and plugged it in. The whole thing worked perfectly now. I thought that if the SLI bridge is plugged in the wrong way round, the system will not boot. Well, apparently not. It will boot and work as normal. Only noticed the problem when playing games.


Quad GPU just means its can handle 4 way SLI (or 2 dual GPU cards like 690). It doesnt mean you have to run 4 way SLI....

Best solution chosen by Penn2170

July 9, 2014 6:00:47 AM

On Asus website, for this motherboard, in the spec it says "Supports NVIDIA® Quad-GPU SLI™ Technology *1". And "*1: With 2 PCIex16 graphics card." Now my worry is the "QUAD-GPU" bit. Your 660 is definitely not QUAD-GPU. I have been looking at this series of motherboard as well because I have a i5-2500k 3.3ghz cpu, looking to upgrade my motherboard but eventually I abandoned the idea due to the QUAD-GPU and 2 PCIe X16 cards. My two GT660 Ti are neither. My origingal motherboard is Z68XP-UD3P. Perhaps more experienced users out there can comment on this. But it makes me not to go for it.
The last thing I wanted to say is that have you tried turning the SLI bridge around. I mean have you tried it both way? I have posted a query earlier last week. In the end, I turned the bridge and plugged it in. The whole thing worked perfectly now. I thought that if the SLI bridge is plugged in the wrong way round, the system will not boot. Well, apparently not. It will boot and work as normal. Only noticed the problem when playing games.
March 13, 2014 4:12:28 PM

ezskills said:
If other games run fine in SLI then Titanfall has No SLI Support not all games support SLI or run smooth when they are first released


All games. I ordered an sli bridge replacement that'll come Saturday. Fingers crossed. Thank you though.
March 13, 2014 4:05:45 PM

You can try lowering one down from your current settings
March 13, 2014 3:03:55 PM

gregbattis said:
my bad
i think i found it out your mobo has 2 16 3.0 slots but when ran together you got 8 and 8.

PCI Express 3.0 x16
2 (x16/0 or x8/x8)


That's plenty of bandwidth for these cards. Not the problem.
March 13, 2014 2:58:07 PM

my bad
i think i found it out your mobo has 2 16 3.0 slots but when ran together you got 8 and 8.

PCI Express 3.0 x16
2 (x16/0 or x8/x8)
March 13, 2014 2:54:01 PM

gregbattis said:
whats your mobo?


So far all these questions have been answered in the original post. Asus P8Z77-V
March 13, 2014 2:52:11 PM

whats your mobo?
March 13, 2014 2:48:29 PM

gregbattis said:
Just to be sure make sure that the bridge is sli and not crossfire. Double check all settings and run the cards individually to see if there is an issue with a card.


They both run fine on their own. And of course the bridge I'm using is sli. Would a Crossfire bridge even fit?

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