hawk269


Have to go to work in about an hour or so, but started testing at 110+ offset and 400+ on memory with power set to 132% and been through 2 runs and now running a benchmark run on Unigine with no....never mind..just crashed.  It looks like +100 is the best I can do in SLI.  Little dissapointed in that.  Temps never hit above 64c too...so the cards are not overheating or anything.

Would you be dissapointed if 580´s running on sli at 1100MHz with 64C´s ?

Junglekorak

hawk269


Have to go to work in about an hour or so, but started testing at 110+ offset and 400+ on memory with power set to 132% and been through 2 runs and now running a benchmark run on Unigine with no....never mind..just crashed.  It looks like +100 is the best I can do in SLI.  Little dissapointed in that.  Temps never hit above 64c too...so the cards are not overheating or anything.

Would you be dissapointed if 580´s running on sli at 1100MHz with 64C´s ?

On Air???  The best I could get my 580's was 975mhz with temps hitting 78c..that was on air though.
 

hawk269

Junglekorak

hawk269


Have to go to work in about an hour or so, but started testing at 110+ offset and 400+ on memory with power set to 132% and been through 2 runs and now running a benchmark run on Unigine with no....never mind..just crashed.  It looks like +100 is the best I can do in SLI.  Little dissapointed in that.  Temps never hit above 64c too...so the cards are not overheating or anything.

Would you be dissapointed if 580´s running on sli at 1100MHz with 64C´s ?

On Air???  The best I could get my 580's was 975mhz with temps hitting 78c..that was on air though.

 
Flip it sideways, set dry ice on the vapor chamber... proceed directly to winning.
 
J/K, it doesn't do too much... will help you need a few degrees to set a personal record but it's nothing like using actual DICE pots or LN2.

FYI, I just put the backplates on... and I can confirm 2*C lower temps on each... so with backplates... lower any temps by 2*C... I now stay under 70*C in BF3 at all times.

so without backplates, I should expect around 72-75c SLI , ultra , maxed out at 1080p 120hz? I get much higher with current 580sli, almost 90c at times. If that is my case I should expect similar results or slightly better temps than my 580's?

Strange.. TC's results are better than mine all around.. He gets like 5-6 fps or so over my setting and higher score in benchmark all around except for 3d mark 11. Is it because he's having sandy bridge-e extreme processor? I heard this processor don't effect much in gaming so it comes down to.. err.. having x79 motherboard and running in pci-e 2.0 @16x speed? Maybe he enabled pci-e 3.0 and running it @ 16x speed. Who knows? My board is pci-e 2.0 and I can only run sli @ 8x speed.

shinobier


Strange.. TC's results are better than mine all around.. He gets like 5-6 fps or so over my setting and higher score in benchmark all around except for 3d mark 11. Is it because he's having sandy bridge-e extreme processor? I heard this processor don't effect much in gaming so it comes down to.. err.. having x79 motherboard and running in pci-e 2.0 @16x speed? Maybe he enabled pci-e 3.0 and running it @ 16x speed. Who knows? My board is pci-e 2.0 and I can only run sli @ 8x speed.

 
The difference is yours is SLI @ PCI-E 2.0 x8/x8 link vs SLI @ PCI-E 2.0 x16/x16.  The give back is about 2-4% in interface throughput which more than likely accounts for some, if not all, the difference.

Ok, I put these on a few days ago, but didn't bother taking pics or whatever til this afternoon.  Here's the rig again, with backplates on the 680s... a much sleeker, look if you ask me.
 

Okay, this is probably the final update, but I wanted to document things here for *posterity*.
 
So, I've been out of town for a bit and finally got back in to install the high-flow brackets.
 
After 45 minutes in BF3, where temps were usually around 62*C at 22*C ambient, they're now down to 56*C.  It appears the highly-restrictive stock brackets are really killing the airflow on these cards.  For the high-flow brackets to affect a 6*C delta is pretty impressive.  I wanted to be sure I shared this with the group as it will directly relate to the GPU Boost potential.
 

mwparrish, is not that the high flow bracket helped that much, it is mainly because ever since the last BF3 patch the GPU usage has dropped quite a bit in SLI systems.
 
The SLI performance is not as good as it used to be prior the patch, sadly this affects all SLI systems, wether they're GTX500, GTX400, or GTX600 cards.
 
You're probably on lower temperatures because your cards at not being as much stressed as before. 
 
Mine hit 56-60ºC with fan set at about 70%-75%. 
 
Play a couple rounds, mainly in 64 player servers on maps like Caspian Border, Kharg Island, Operation Firestorm... You will see your GPU usage drop quite often even below 70%. 

Nice job good pics...
 
Thanks,
Mack 4033

kcuestag


mwparrish, is not that the high flow bracket helped that much, it is mainly because ever since the last BF3 patch the GPU usage has dropped quite a bit in SLI systems.

The SLI performance is not as good as it used to be prior the patch, sadly this affects all SLI systems, wether they're GTX500, GTX400, or GTX600 cards.

You're probably on lower temperatures because your cards at not being as much stressed as before. 

Mine hit 56-60ºC with fan set at about 70%-75%. 

Play a couple rounds, mainly in 64 player servers on maps like Caspian Border, Kharg Island, Operation Firestorm... You will see your GPU usage drop quite often even below 70%. 

 
All of my comments were based on post-update testing.  I've had some time to tinker... but not enough time to play as much as I like.  Your point is valid and well taken, but I'd already factored that in.

I recieved a high-flow bracket but I simply can't install it because the original bracket is too hard to remove. I keep trying to remove the screws with the proper screw driver but it's IMPOSSIBLE, they're way too hard, as if they had super glue on them. 
 
Any tips?

kcuestag


I recieved a high-flow bracket but I simply can't install it because the original bracket is too hard to remove. I keep trying to remove the screws with the proper screw driver but it's IMPOSSIBLE, they're way too hard, as if they had super glue on them. 

Any tips?

 
No super glue... but there is blue loctite!  I find by pressing down and applying gentle torque works best... more downward pressure than torque gets it done.  The real pain is fumbling with the DVI port screw posts in my opinion.

Thanks, will give it another try tomorrow!

With the "EVGA GTX 680s SLI - +100 Mhz Offset" when you get 18k performance score, was both card really hot? Do you think if I used those setting I would need cooling?
 
thanks

pinealogik


With the "EVGA GTX 680s SLI - +100 Mhz Offset" when you get 18k performance score, was both card really hot? Do you think if I used those setting I would need cooling?

thanks

 
Ha, no. Highest temps at 85% fan is around 65*C on my system.  If you're case has poor ventilation or your ambient temps are hot (no A/C), then you'll see some issues.

You use 85% fan speed for gaming? Whoah that's loud!
 
I use ~75% to keep them below 65ºC-66ºC at most.

mwparrish

pinealogik


With the "EVGA GTX 680s SLI - +100 Mhz Offset" when you get 18k performance score, was both card really hot? Do you think if I used those setting I would need cooling?

thanks

Ha, no. Highest temps at 85% fan is around 65*C on my system.  If you're case has poor ventilation or your ambient temps are hot (no A/C), then you'll see some issues.

 
Well, that.s not too bad. I'm used to lots of noise with my 480's, so that's nothing!I've got a very good case too, so that's not a problem.
 

pinealogik

Well, that.s not too bad. I'm used to lots of noise with my 480's, so that's nothing!I've got a very good case too, so that's not a problem.

 
The 480s are noise monsters... the 580s are much better acoustically... the 680s are similar to the 580s.

kcuestag


You use 85% fan speed for gaming? Whoah that's loud!

I use ~75% to keep them below 65ºC-66ºC at most.

 
Yeah, but I only game wearing headsets so I don't notice it over the din of pew pew.