Can someone tell me why SLI visual indicator drops half green bar and my fps drops ?

ravndal15 · Jun 6, 2013

Hi guys .
I'm using 2x gtx 780's and I'm wondering why at times the SLI visual I dictator drops half in my games . When it happens my fps also drops ?

http://tinypic.com/view.php?pic=2vcc39k&s=5

http://tinypic.com/view.php?pic=9gvp6a&s=5

As to can see the green visual SLI indicator changes . Why is this ? Power problem ? Connector problem ? Just a usual normal thing ? I wish to know because when I drops my fps drops also ?

alexander0884 · Jun 6, 2013

Temperatures maybe? Are you monitoring those?

ravndal15 · Jun 6, 2013

alexander0884 :

Do you mean monitoring the graphics cards temps ? I'm not doing that . How can I do that ?

avenseth12 · Jun 6, 2013

download GPUZ; it will show the temp of your cards. If that game is wow; wow is not geared for SLI or xfire.

ravndal15 · Jun 6, 2013

avenseth12 :

One card in tomb raider had average 56.9 C and 64.4 max
The second card had 58.8 average and 77.0 C max
It's was after playing Tomb Raider for 15 minutes and some most stressful places . Interesting to note though this time the SLI indicator stayed pretty much full green always . Not like in WoW . But one time earlier this evening it did dip in Tomb Raider . That was when I first installed the cards . Maybe it was just unfortunate spot in the game though because this last 15 mi items has been great pretty much . Getting 144 fps most times . Dipping to 120/130 occasionally in hard spots .

alexander0884 · Jun 6, 2013

Dude 120FPS is excessive, I am guessing your monitor refresh rate is like what 60? I doubt youd see any real difference in actual gameplay.

77C Is quite high for your GPU temp and my guess is that it was the reason for your "drop".

Whatever software you are using, maybe download MSI afterburner and set your GPU FAN settings to max to ensure they are getting the most out of cooling and see if any difference.

Mousemonkey · Jun 6, 2013

alexander0884 :

No it isn't stop being stupid!

ravndal15 · Jun 6, 2013

alexander0884 :

Monitor refresh rate is 144 hz and yes I see a difference man . A big one .

alexander0884 · Jun 6, 2013

Mousemonkey :

Well, after a short time of gaming, 77 is quite high in my opinion and I do not know if he is overclocking/running any software that cuts power after a threshold is reached. Though GPUs are designed to sustain much higher temps, it is clear that one of his cards is in a place where heat isnt dissipating as effectively and probably elading to a cut off in performance/power past a certain termperature. Im guessing its probably parked right next to one of the bridges heatsinks.

With regard to noticing framerate difference @144 I highly doubt you notice a sliver of difference at those ranges with the exception of the actual number indicattion obviously. If you are noticing some kind of micro-stuttering then thats a SLI issue and nothing with performance.

Mousemonkey · Jun 6, 2013

alexander0884 :

Mousemonkey :

Well, after a short time of gaming, 77 is quite high in my opinion and I do not know if he is overclocking/running any software that cuts power after a threshold is reached. Though GPUs are designed to sustain much higher temps, it is clear that one of his cards is in a place where heat isnt dissipating as effectively and probably elading to a cut off in performance/power past a certain termperature. Im guessing its probably parked right next to one of the bridges heatsinks.

With regard to noticing framerate difference @144 I highly doubt you notice a sliver of difference at those ranges with the exception of the actual number indicattion obviously. If you are noticing some kind of micro-stuttering then thats a SLI issue and nothing with performance.

Without knowing what the OP's ambient temps are and no knowledge of what kind cooling setup the OP's case has to say that 77c is high is nonsense IMO as the the cards have a max of 95c according to Nvidia so anywhere into the high 80's is OK.

alexander0884 · Jun 6, 2013

Mousemonkey :

alexander0884 :

Without knowing what the OP's ambient temps are and no knowledge of what kind cooling setup the OP's case has to say that 77c is high is nonsense IMO as the the cards have a max of 95c according to Nvidia so anywhere into the high 80's is OK.

Its a common encounter with these sort of problems. Mostly related to overheating/cooling, sure you are right I dont know what cooling methods he utilises or the ambient temperatures. However I am pretty sure he is running stock coolers on his GPU's and a single card overheating in SLI is not uncommon.

bystander · Jun 6, 2013

alexander0884 :

Most reference cards will run at 80C or higher in any demanding games, even with the most perfect air flow designed cases. 77C is not a problem.

Your opinion on 144hz is obviously not coming from experience. The difference isn't really seen though, it is felt. It is far more responsive. It also gives you another frame interval that makes v-sync stutter less when not maintaining your refresh rate.

ravndal15 · Jun 6, 2013

bystander :

alexander0884 :

Most reference cards will run at 80C or higher in any demanding games, even with the most perfect air flow designed cases. 77C is not a problem.

Your opinion on 144hz is obviously not coming from experience. The difference isn't really seen though, it is felt. It is far more responsive. It also gives you another frame interval that makes v-sync stutter less when not maintaining your refresh rate.

By the way they are 2 gtx gigabyte overclocked editions with 3 fans on each card . Not standard 780's

Mousemonkey · Jun 6, 2013

ravndal15 :

bystander :

By the way they are 2 gtx gigabyte overclocked editions with 3 fans on each card . Not standard 780's

What is the ambient temp of your location?

ravndal15 · Jun 6, 2013

Mousemonkey :

ravndal15 :

What is the ambient temp of your location?

It's winter here in Australia . Inside my room tonight I really don't know it must be about 20 degrees .
Day temps outside is 21 today . That's 69.8 farenheit

alexander0884 · Jun 6, 2013

ravndal15 :

Mousemonkey :

It's winter here in Australia . Inside my room tonight I really don't know it must be about 20 degrees .
Day temps outside is 21 today . That's 69.8 farenheit

Inside your case, not inside your room lol.

You got the GTX windforce yeah? So its still pretty hot in my opinion but whatever I guess people will always argue irregardless of what I think.

bystander · Jun 6, 2013

The point is, 77C is not a problem. It is not a matter of what is ideal, but 77C isn't really far off from ideal either.
http://www.guru3d.com/articles_pages/gigabyte_geforce_gtx_780_windforce_oc_review,8.html
This review showed 67C under load on an open table with a room temp of 21C. You can expect several degrees higher when inside a case.

You may also note just how hot many other cards get.

Mousemonkey · Jun 6, 2013

alexander0884 :

ravndal15 :

Mousemonkey :

It's winter here in Australia . Inside my room tonight I really don't know it must be about 20 degrees .
Day temps outside is 21 today . That's 69.8 farenheit

Inside your case, not inside your room lol.

You got the GTX windforce yeah? So its still pretty hot in my opinion but whatever I guess people will always argue irregardless of what I think.

Actually I meant the room not the case and yes regardless of what you think, 77c is not high.

ravndal15 · Jun 6, 2013

Mousemonkey :

alexander0884 :

ravndal15 :

Inside your case, not inside your room lol.

You got the GTX windforce yeah? So its still pretty hot in my opinion but whatever I guess people will always argue irregardless of what I think.

Actually I meant the room not the case and yes regardless of what you think, 77c is not high.

I thought you meant room lol . In summer I run an air conditioner in this room. We have hot summers here 40 plus and my room faces the west . If I dont have air con forget gaming through the day. Not gonna happen

Can someone tell me why SLI visual indicator drops half green bar and my fps drops ?

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