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Issues, Workarounds & Localization

 
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GTX 780 (SLI) Memory Clock Drops affecting FPS (1440p monitor)

Author
Esharan
State War Academy
Caldari State
#1 - 2014-01-15 23:11:14 UTC  |  Edited by: Esharan
Hey,

So I have 2x GTX 780's running in SLI, and I've noticed a problem since the most recent nvidia driver and EVE-Online update.

Regardless of what I'm doing in-game, my cards will randomly down-clock the memory clock speed from full speed (1,502 Mhz) down to around 450 Mhz. This coincides with a frame rate drop from 60fps solid (to between 38-45fps (yes v-sync enabled)

I am playing on 1440p - so the memory clock is certainly more of a factor I know, and I'm fairly certain this clock drop might at least be part of why my FPS is dropping. However, this also happens on 1080p but when the memory clocks drops there it doesn't impact my FPS nearly as much. Obviously, the 1440p requires the extra memory clock speed to run stable at 60fps.

This appears to be a new issue, prior to this I've never had FPS drops - lets face it 2 GTX 780's is way over-kill for EVE and with v-sync I should have 60FPS pretty consistently . However, since the latest nvidia driver 332.21 - which added a SLI profile for EVE-Online I have been experiencing this issue. It is only happening in EVE, all other games run full memory clock consistently, with stable FPS and no large drops.

Anyway, I did some more troubleshooting and I'm pretty sure I narrowed it down further. I think there might be a problem with the SLI profile for sure. It seems that in EVE and only in EVE my bottom card runs at 90% utilization, where the top card runs at 50% utilization. Obviously this makes no sense and is backwards, yet in EVE it's the case.

So I did some a little more tinkering and as I thought, when I disable SLI there are no issues, the top card runs at 99% utilization as it should, and I don't get any sort of FPS drop whatsoever . In-fact with SLI disabled, I get very slightly higher FPS (when v-sync is off) - so there must be something wrong with the way SLI is working with the new Nvidia driver or EVE patch or something right? Anyway, like I said prior to the latest Nvidia patch, there were no issues - and SLI would always run faster than single GPU.

Please advise, and can DEV's comment?
Esharan
State War Academy
Caldari State
#2 - 2014-01-16 01:13:41 UTC  |  Edited by: Esharan
[Deleted - added via edit to first post]
Esharan
State War Academy
Caldari State
#3 - 2014-01-16 01:21:50 UTC  |  Edited by: Esharan
[Deleted - added via edit to first post]
Onisean
Perkone
Caldari State
#4 - 2014-01-16 18:14:47 UTC  |  Edited by: Onisean
Hey man, Im here with my 780 sli too and just downloaded new nvidia driver ...

Check it out ... as it says ... New in GeForce 332.21 WHQL drivers - Eve Online – created DX11 profile

yay !
Esharan
State War Academy
Caldari State
#5 - 2014-01-16 20:32:28 UTC
Onisean wrote:
Hey man, Im here with my 780 sli too and just downloaded new nvidia driver ...

Check it out ... as it says ... New in GeForce 332.21 WHQL drivers - Eve Online – created DX11 profile

yay !



Um...Yah I know - my problem is with this driver, was not an issue prior too...

Sarah Nalelmir
Imperial Academy
Amarr Empire
#6 - 2014-01-17 14:05:03 UTC
Esharan wrote:
Onisean wrote:
Hey man, Im here with my 780 sli too and just downloaded new nvidia driver ...

Check it out ... as it says ... New in GeForce 332.21 WHQL drivers - Eve Online – created DX11 profile

yay !



Um...Yah I know - my problem is with this driver, was not an issue prior too...



Hi Esharan

In the NVidia control panel do you have Power management mode set to prefer maximum performance ?

Its under manage 3d settings > program settings > eve.exe > power management mode

Sounds like the card is downlocking itself.

I noticed with 780 ti sli the gpus only get pushed to around 35% for me but its not gpu or cpu bottlenecking as cpu usage for me is also low.

Eve cant really push 780/780ti sli to its max (unless you run across 3 monitors in a fight with a lot of players/npcs) so it sounds like the card is downclocking itself due to low gpu utilisation.

Forcing power management mode to performance should stop this.
Sarah Nalelmir
Imperial Academy
Amarr Empire
#7 - 2014-01-17 14:07:40 UTC
Also try force alternate frame rendering 2.

That for me was the default eve sli mode before the latest drivers. I don't recommend going back however to earlier drivers, as the previous one for me was causing a crash with the client where in game windows would randomly close.

I will check today at some point with gpu-z in the background and let you know if im getting same problems but the new drivers seem to be fine for me in eve.
Dadbbad
Dadbbad Corporation
#8 - 2014-01-19 21:57:27 UTC
I had same problem with down clocking. Download evga precision. Under the voltage settings you will find kboost. Its designed to stop your cards from down clocking. After enabling this I had no more problems.