ATI 6870 not overclocking (Low FPS)

[Driftit]

Have been having major issues with Low FPS in game. 10-20fps max.

All settings on medium. No AA. Epi Filter off. Could not figure it out.

Until I noticed my card was not stepping up to its stock clock of 900mhz. It stays stepped down at 300mhz.

I have no idea why it is doing this. I checked with other games and they are fine. They all step the card up.

This could be why so many people are getting Low FPS on powerful machines.

[hc_wolf]

I can't confirm my cards not stepping up.

I run 2 x 285gtx with win7 64bit and Q6600 cpu with 8gig ram.

My system chokes on this game yet I can run ARMA2 on maxed out settings and that is way more demanding on CPU then COD.

Some guy posted his conf.ini settings and I am going to try them tonight.

maybe try yourself and back up your old one.

This goes in your documents user folder no where steam has installed.

just change the .txt to .ini let me know if it helps at all.

[Driftit]

I will give that a try. I also play Arma 2 and that was the other game I used to test if my card was stepping up. It does so fine.

It sounds like your cards are also not stepping up.

[Targ]

In the ATI tray bar on the bottom right , if you right click it and go to 3D settings you can force maximum clock speeds.

It's a pain but a work around until they hopefully fix it.


4870X2 here and same issue.

[Driftit]

Thanks for the info. But I don't seem to have this option which is a pain. Will figure it out.

[Targ]

Thanks for the info. But I don't seem to have this option which is a pain. Will figure it out.

You have CCC installed don't you?

Is it running in the tool bar?



If so, right click it and select ati radeon than 3d settings and force maximum clocks.

[Thee_oddball]

You have CCC installed don't you?
Is it running in the tool bar?
If so, right click it and select ati radeon than 3d settings and force maximum clocks.

look at my sig to see my system specs...i am running everything at MAX in this 4x4 battle...mind you it is mostly over water and when i flew over the city at treetop level (not in vid) it dropped to 11-15 fps :( but it should give you a good reference point :)

http://www.youtube.com/watch?v=PpgTfmkymDE


BTW i joined a DF server tonight and was getting 80-120 fps at low to medium settings :):):) it was ugly as hell but fluid :)

[Psycho_Ch!cken]

I can confirm this as an issue. I noticed immediately that performance on my crossfired 6950's was abysmal, even on medium settings, and that even with the Epilepsy filter disabled, the secondary card does not throttle up at all (i.e. Crossfire is completely non functional) while the primary card also runs at only 500MHz (instead of the usual 800MHz).

If you want to check your own cards, use GPUz from TechPowerUp. Just run it in the background, with the Sensors tab selected (make sure to tick the box for continuing to refresh the screen while it's running in the background) and then alt tab out to see what speeds it's been running at. Ignore the current speed though, that will generally drop when you alt tab, instead mouse over the red bar for the GPU Core Clock and the value it displays will be the one it was running at. If you have a second monitor though, naturally you can keep the window visible in that while you play.

http://www.techpowerup.com/gpuz/

I have a heavily overclocked i7 930, a pair of 2GB 6950's and 6GB of RAM, yet the game runs more poorly than Crysis did on my old Core 2 Duo/8800GT. Something is very wrong here.

[Flanker35M]

S!

Noticed same on my 6970HD. Core clocks do not go to full, but to 500MHz instead of 880MHz. Memory clocks go to 1375MHz as should. Also noted better image quality with AF overridden with CCC, some artifacts went away with this. I use latest 11.3 WHQL drivers.

[T_O_A_D]

I don't have a maximum clocks, and I'm not sure how to tell if its stepping up or down.
I have a pair of 4850's in crossfire, but they are not both working in this game, the splash logo comes on in other games but not this one.

I did go into CCC and allowed the auto tune to OC it.

If you can explain I'll check what you ask.

[Flanker35M]

S!

I left CCC open and alt/tab to check clocks during game. They did not go higher than 500MHz. I overclocked the card but still the same?!

Also these black cursors people talk about are gone for me. I closed all the info windows, could that do it? Also overriding AF in CCC helped with graphical artifacts.

I tested Very High settings and got 11-38FPS over sea/land. Lowering to High helped a bit, but there is a lot of pauses and stutter. When these issues are solved the game will look simply gorgeous :)

[Targ]

I don't have a maximum clocks, and I'm not sure how to tell if its stepping up or down.
I have a pair of 4850's in crossfire, but they are not both working in this game, the splash logo comes on in other games but not this one.

I did go into CCC and allowed the auto tune to OC it.

If you can explain I'll check what you ask.

I have a second monitor and have the CCC open when in game for monitoring.

The setting for force maximum clocks is only in the ati tray bar. right click, select your top card (either one will work) than 3D settings and than force maximum clocks/enable

If that does not force one of your cards to ramp up to 3D speed than you will need to disable one of your cards.

[Kankkis]

i dont have that force maximum clock speeds option there, i have ATI5970

I have 10.3 drivers.

Kankkis

[Devastat]

I don't have that option either, Radeon 5850.

[Flanker35M]

S!

Same here, no override option on 11.3's.

[Kankkis]

Any help?

[Bertram W. Wooster]

Noticed the same behaviour with my 4850 - the core clock speed remains at the idle underclock speed of 160MHz throughout the entire game session, confirmed using GPU-Z sensor logging. This doesn't happen with any other games I have tested, just CoD.

I'm running v10.10 of the Catalyst drivers and don't see the force clock speeds option either. However, I was able to force the clock speeds using the ATI Overdrive option in ATI Tray Tools (http://downloads.guru3d.com/download.php?det=733).

Unfortunately, forcing the clock speeds didn't seem to noticeably improve performance.

[Kankkis]

Noticed the same behaviour with my 4850 - the core clock speed remains at the idle underclock speed of 160MHz throughout the entire game session, confirmed using GPU-Z sensor logging. This doesn't happen with any other games I have tested, just CoD.

I'm running v10.10 of the Catalyst drivers and don't see the force clock speeds option either. However, I was able to force the clock speeds using the ATI Overdrive option in ATI Tray Tools (http://downloads.guru3d.com/download.php?det=733).

Unfortunately, forcing the clock speeds didn't seem to noticeably improve performance.

Installed, i don't have even there that option?

[Bertram W. Wooster]

Installed, i don't have even there that option?

Right-click on the ATI Tray Tools icon in the taskbar and select Hardware | ATI Overdrive 5. For reference, I'm running ATI Tray Tools v1.7.9.1557

[JG301_HaJa]

Sorry but I have to concur on this one. No override in the 11.2 version 64 bit W7 here
either no matter where I look.

On the other hand I don't have the option for individual profiles activated?! Perhaps
one can do it in there?

[Kankkis]

Right-click on the ATI Tray Tools icon in the taskbar and select Hardware | ATI Overdrive 5. For reference, I'm running ATI Tray Tools v1.7.9.1557

Thanks a lot

[JG301_HaJa]

Ah, sorry I didn't notice that youre talking about ATT and assuemed it was about CCC
My bad sorry. I need to install that again :D

[oxygenthief]

open the catalyst control centre (im running the latest drivers) click on performance then clock controls, then amd overdrive, you can see your current values at the bottom of the amd overdrive interface,

in order to change anything on this screen you will need to click the little key icon above "enable AMD overdrive" to unlock the interface and allow changes

if you have the benefit of two monitors you will be able to monitor this in game, both my gpu clock and memory clock increase when the game is running and at 890 mhz and 1215 mhz on the ram my performance in game was pretty much unchanged.

the game as others have mentioned is hardly touching the CPU im only using 17% of cpu capacity and only 2 gig of my 6 gig ram is used

[Phazon]

I'll also confirm that AMD PowerPlay (the thing that downclocks AMD cards when they aren't in use) does not work with Cliffs of Dover at all. It is like it does not consider Cliffs of Dover to be a 3D game.

My GPU/Memory clocks registered as 500Mhz/500Mhz using GPU-Z sensor logging. Their normal clocks during 3D gaming are 750Mhz/900Mhz.

Overclocking the clocks using Overdrive in the CCC will not have any effect as it does not disable PowerPlay which is what controls the GPU and memory clocks. Only forcing settings for the clocks using a third-party utility will get around this.

I'm quite annoyed learning about this today. Its clear that this game was not tested with any AMD cards at all. Its time to get out of bed with Nvidia now.

[PzMeyer]

Got similar problems with nvidia card.
First clocks are at normal 3D clocks but suddenly after some time go down to 400 coreclock. I recognized some memory overflow posted in another thread with screenshot.

[T_O_A_D]

Ok, this is what I just got.

If I'm reading it right the first card is not being used, but the second one is 100%?

Catalyst Version 11.2

ATI Radeon HD 4850 x2

[Razorhead]

That's strange, but at this moment crossfire is nog supported.

[kalimba]

That's strange, but at this moment crossfire is nog supported.

Have you read this ;)

http://forum.1cpublishing.eu/showthread.php?t=20055

All the answers for low fps...

Salute !

[Triggaaar]

So once we've established that our AMD Overdrive is enabled, but the GPU clock doesn't go above 500 MHz whilst in game, what do we do to force faster clocks?

[Flanker35M]

S!

Would be nice to know as I am sure a missing 380MHz will affect performance...

[Mango]

Can anyone tell me how to view the FPS counter directly in Cliffs of Dover?

[Triggaaar]

Map a command to open the control panel

When in it, type
fps SHOW START

[Targ]

How to force max clock speeds in CCC

http://www.youtube.com/watch?v=b4uNfWI6TiE

[seaeye]

Same problem here. My 6870 doesn't budge, and I don't have the opyion to force clocks as described.

11.3 drivers

ASUS M4A79XTD EVO MOBO
Phenom X4 965 BE 3.4Ghz
8Gb DDR3 1600 RAM
ASUS 6870 DRIECT CU 1Gb DDR5
WD Caviar Blue 500Gb HD

Getting 10-20 FPS most settings Low some medium. No trees, no roads, noanyhting really. Think I'll stick with 1946 until this mess gets sorted.

[Triggaaar]

How to force max clock speeds in CCC

http://www.youtube.com/watch?v=b4uNfWI6TiE

I don't get that 'force max clocks' option.

[Phazon]

The video Targ posted only applies to Crossfire users, who have additional driver settings available to them.

For single-card users you will have to use a third-party overclocking program like MSI Afterburner to force clock speeds and overrride PowerPlay.

[Mabroc]

I have a Sapphire 6950 and the underclock problem (average low FPS) tested the problem and used MSIafterburner utiilty to OC my CORE and MEMORY clock by only 1MHZ each.
Started the game again and the FPS improved a lot (still stuttering randomly and the "lagginess" feeling) went back to desktop and the charts in the utility showed the correct throttle up when in game of the Mhz and the throttle down when in desktop.
The utility is free and work with every ATI/AMD RADEON card, you can get it from www.guru3d.com.

[JG301_HaJa]

Well I have crossfire and that option is still not available for me CCC 11.2 in either
crossfire enabled or disabled mode.

[Triggaaar]

For single-card users you will have to use a third-party overclocking program like MSI Afterburner to force clock speeds and overrride PowerPlay.I've tried running MSI afterburner, but I can't find an option to 'force' a faster clock speed. Any hints?

[T_O_A_D]

Yep same here, twin 4850's and they don't have that option either, when looking for it, as Targ's video shows.

[Razorhead]

Have you tried Ati Tray Tools? (hardware -> overclock settings)

[Triggaaar]

Have you tried Ati Tray Tools? (hardware -> overclock settings)I don't know what ATI tray tools is - I don't have it under my list of programs, or via CCC, can't see anything in control panel either.

[Driftit]

Well since I created this thread I have not been able to solve the problem. I have not been able to force my card to move from idle while in this game.

Infact the game makes it step down to idle. Running another 3D game at the same time as soon as I started COD it dropped to idle.

My card is one of the supported/tested cards. Yet everyone I know with the game and this card has the same issue.

[Triggaaar]

I don't know what ATI tray tools isOk, googled and downloaded ATI tray - complicated, no idea how to use it

[Targ]

Odd that so few cards would have that "force max clock speed" setting?

Maybe it's only on duel GPU cards only?

[Razorhead]

Ok, googled and downloaded ATI tray - complicated, no idea how to use it

Right below is a ati tray tool icon.

1. click on it
2. click on hardware
3. click on overclock settings
4. change the clocks to the desired clocks
5. click apply

[Triggaaar]

Right below is a ati tray tool icon.

1. click on it
2. click on hardware
3. click on overclock settings
4. change the clocks to the desired clocks
5. click applyThanks very much for posting that, much appreciated.

I had found that screen and I changed it from 500 to 880, clicked ok, and my PC crashed (can't remember, maybe I needed to adjust the voltage too). I haven't been able to run the ATI tray since, so I uninstalled it.

Reading another thread on this subject I'm not sure if you should only increase the clock speed by 1, which just gets it going (for want of a better phrase) and allows it to go up once the game starts. Anyone got it to work?

I also looked at editing the MSIafterburner cfg file, but that's not straightforward either, so I'm going to leave it until after the weekend patch, just in case the developers put something in.

[Razorhead]

What card do you have? What catalyst do you use?

You should get the normal clocks without editing the voltage.

[hoarmurath]

i use a crossfire of 4850 toxic, and using the latest ATT, i displayed the gpu frequencies while playing.

The primary gpu ramped up to 675 mhz without problem, all normal here, and the second gpu stayed at 500, as is usually the case with games not using the crossfire.

[David198502]

how to overclock my card without crashing my computer???i just downloaded ATI tray but my attempt lead to a fully crash of my rig.how can i know how much a can increase the clocks?
btw: i have a crappy hd 5570 card

[69iAF~Mike]

ATT works great! My HD6870 finally shows some power.
You can create a 3D clock profile and then use it in a game profile that will only set the clocks to the 3D setting when you launch "launcher.exe", then set it so the clocks return to 2D levels when you close the game.

[Driftit]

I will try the ATI Tray tool if the patch does not solve the problem. Will let you all know the results in this post.

[gabuzomeu]

ATI tray tools, 870MHz on 4890 fixed everything: enjoyable (patched) game, 50fps over sea, 25 over land, everything high in 1680x1050, no AA yet.
Looking at beta patch thread, most if not all ATI owners are disappointed, Nvidia see improvement -> points to GPU speed being the limiting problem on ati cards ...

[Driftit]

Well the beta patch did not fix the idle step up problem at all. Very dissipointed. Other than the stuttering this has to be the biggest problem. Has it even been addressed at all?

Will try ATI tray tools now. And hope it doesn't crash my machine like it does with my friends.

[jibo]

the idle step problem will be address in the final version

[Triggaaar]

This is what's worked for me:
I turned off "enable hardware acceleration" in Flash player. My card then worked as expected for a 3D application.

I just open youtube, pick a video and right-click the viewing area and select settings.

It should open on the first tab, which is where that option is.
After doing that, my clocks have been at full speed.

EDIT
Having received today's patch, this no longer works.

So how do we set up a profile with ATT?

[Driftit]

After many hard crashes I got ATT to keep my card in a stepped up state. This allowed me to play the game.

Something I am keeping an eye on though is the card temps while running ATT. I am not sure yet if ATT is using its own temp/fan profiles. As the card is getting hotter than it normaly would say playing ARMA2. So I have bumped the fan speed up a little to be safe.

ATT is a temp fix if you have this issue. Also a way to stop the hard crashes in ATT is to switch the voltage option to a higher voltage. This is found in the same screen where you set the clock speed.

[LeLv8_Archi]

ATI tray tools, 870MHz on 4890 fixed everything: enjoyable (patched) game, 50fps over sea, 25 over land, everything high in 1680x1050, no AA yet.
Looking at beta patch thread, most if not all ATI owners are disappointed, Nvidia see improvement -> points to GPU speed being the limiting problem on ati cards ...

Hi,

I have also 4890 and trying to get the max out of it so could you post some (AtiTrayTools) setup specs since it crashes my computer every time I try to set it up...

Thanks

[Ataros]

Stock speed of my 4890 is 850:975. It crashes if I overclock it usually.

Try making a profile for ATT for this speed.

[LeLv8_Archi]

It's no go with the ATT profile-thing :( pc freezez when launching the profile.

[JG301_HaJa]

My HD6870 now clocks up properly but the GPU sits as 100% or almost 100% all the time.

Also the CPU is at 26% load.

[Flanker35M]

S!

Ran AMD resource monitor during free flight over France. GPU load was 45-61% all the time, GPU clocks were at 3D speeds etc. CPU utilization was mere 23-27% on average, varied between cores.

GPU load seemed to increase when nothing was visible, like sea or sky. But when looked down on ground etc. it decreased. CPU utilization was pretty constant through the test.

[JG301_HaJa]

Did a new test with completely different results?!

I have set W7 performance to "adjust for best performance" or whatever it's called in the English version of OS. I have downloaded and used "Gamebooster 2" from IOBit and then I ran it again.

The 1 core is at about 40% to 60% all the time and the other flutter from 0% to 30%
The GPU load is around 50% after an initial 100% for about 20 seconds.

I havn't checked the FPS but it feels very playable atm. Have to fly some and see if it feels nice. All setting are at high except buildings and trees that are very low and also no grass.

[Phazon]

Hey guys, I was reading some of the Russian Clod forums and apparently the game still doesn't use a proper full-screen mode. It was still buggy and didn't make the patch. I think having a proper full-screen mode will fix the issue as it is unorthodox to have a intensive 3D program run in a window. The drivers are optimised to run in full-screen mode.

[Flanker35M]

S!

Thanks for the info Phazon. Hopefully a fix comes in future.

[Triggaaar]

This is a bit of a pain, can't get it working without CCC which I can't then set back to standard, or renoot it seems.

[Orpheus]

This is a massive issue for ATI users, my 5770 still won't go above 400 clock speed. This needs fixing asap!!

[Luftrofl]

Having the same problem with my 5750. Clocks stuck at 400MHz instead of 765MHz. They really should get this straightened out ASAP since regardless of what optimizations are made, we are basically trying to run the game with our hands tied.

[Phazon]

A simple fix has been discovered to fix the clockspeed issue. It is because of the flash Ubisoft logo video that plays when you start the game which confuses the card.

Simply rename or delete the Ubisoft logo video found in \Steam\steamapps\common\il-2 sturmovik cliffs of dover\parts\core\GUI.

It has fixed the issue for my HD4870 and alot of other AMD users! :)

[Thee_oddball]

A simple fix has been discovered to fix the clockspeed issue. It is because of the flash Ubisoft logo video that plays when you start the game which confuses the card.

Simply rename or delete the Ubisoft logo video found in \Steam\steamapps\common\il-2 sturmovik cliffs of dover\parts\core\GUI.

It has fixed the issue for my HD4870 and alot of other AMD users! :)
now give credit where credit is due Phazon ;)

BTW if you have the russian version you dont have this problem.....because there is no UBISOFT logo :)

[Phazon]

I didn't claim it was me who found out, just spreading the word. :)

[Blackdog_kt]

A simple fix has been discovered to fix the clockspeed issue. It is because of the flash Ubisoft logo video that plays when you start the game which confuses the card.

Simply rename or delete the Ubisoft logo video found in \Steam\steamapps\common\il-2 sturmovik cliffs of dover\parts\core\GUI.

It has fixed the issue for my HD4870 and alot of other AMD users! :)

Woot! I'm off to try this.

I have a 4890 which used to run at 240Mhz, after the latest beta patch it runs at 500Mhz. The maximum factory specified clock speed is 850 Mhz.

I set it to 850Mhz with Ati tray tools and got 30 or so extra FPS, but i don't know what else to change there (fan profiles, voltage, etc) so it ends up crashing and rebooting my PC after 40 minutes or so. I guess the catalyst drivers automatically take care of these things, because it uses 850Mhz on all of my other games without any problems.

If you solution works then the sim is fully playable for me. I'm currently getting 20-30 FPS with the GPU at 500Mhz and 50+ FPS if i run it at 850Mhz. While 30 is very playable for me, it gives less of a margin for them to drop when there's a lot of things suddenly happening at once on the screen. On the other hand, 50 is just great as i'm limited to 60 FPS anyway due to having Vsync on and a 60Hz monitor.

I'm off to try it, wish me luck ;)

[Orpheus]

Did it work Blackdog? Interested to see if my fix works for all the ATI cards suffering the underclocking issue, the more positives we can get the better!

[Blackdog_kt]

So, i renamed the video file containing the animation of the Ubi logo and had a go late last night. I didn't have time to do in-depth tests, just a quick go in the low altitude bomber intercept mission.

Long story short, i can't really verify it but it seems to work.

To be more precise, when i alt-tab out of the sim to check what CCC says my clock speeds are, it shows it's underclocked to 240Mhz. However, when in the sim it's noticeably smoother than before.

My suspicion is that getting rid of the logo lets the drivers recognize there's a game running and from that point on, it dynamically throttles the GPU up/down as needed, clocking up when in-game and undeclocking it back down once i alt-tab to the desktop.
I mean, i do get the 240Mhz indication in the CCC when i alt-tab out of CoD, but when actually flying i was getting an average of 24FPS with a maximum of 50 (as displayed by the in-game fps counter). I think it was also a bit misleading as i ran the mission for just one or two passes and that included the initial merge where all the textures load, so the sample range was a bit "biased" to the low side. If i had played through it for 10 minutes or so i guess the average would be around 30-35 FPS as it certainly hovered around 30-40 FPS for the remainder of the mission with maximum in the 50s, compared to 25FPS with a maximum of 30+ before renaming the video file.

This is still lower than what i got by forcing 850Mhz via the Ati tray tools (that gave me an almost constant 40 FPS all the way into the high 50s), but it's still a perfectly working solution.

The biggest improvement was that it completely eliminated the stutters that used to happen as the textures loaded the first time i would approach bombers or go to zoom view.

Until the sim is further optimized, this temporary workaround gets a thumbs up from me. Just remember to go back and rename the video file again after each patch or whenever you verify the integrity of the game files via Steam, because it will revert it to its default state.

[Dokuro]

Hello, excuse me for my english, I have the same ring than orphéus

core I5 2.7 Ghz W7 64b 4 GB RAM and two ATI 5770 1 GB in CROSS OVER

and it's works very well for me ...

from 15 20fps to 30 40 fps with no stutters

by

[jdbecks]

I wonder if this can work for Nvidia cards too??

[Orpheus]

My suspicion is that getting rid of the logo lets the drivers recognize there's a game running and from that point on, it dynamically throttles the GPU up/down as needed, clocking up when in-game and undeclocking it back down once i alt-tab to the desktop.


Glad it's been an improvement. What seems to be happening, as I said before is that the Ubi splash forces the card to video clock speeds, but Powerplay (or whatever) isn't detecting the swap back to 3D speeds. If you check GPU-Z and make sure that it's refreshing while not on screen, you should be able to see if your card is clocking full during gameplay. Without the splash movie confusing the card, the game seems to clock normally :)


I wonder if this can work for Nvidia cards too??

If Nvidia cards are underclocking in the same way as the ATI ones then I see no reason why not - it's simply a case of the UVD setting overriding the usual 3D setting when the splash plays. To the best of my knowledge though, I've not seen any reports from Nvidia users complaining about underclocking, so afaik this is an ATI only issue.

[Thee_oddball]

Glad it's been an improvement. What seems to be happening, as I said before is that the Ubi splash forces the card to video clock speeds, but Powerplay (or whatever) isn't detecting the swap back to 3D speeds. If you check GPU-Z and make sure that it's refreshing while not on screen, you should be able to see if your card is clocking full during gameplay. Without the splash movie confusing the card, the game seems to clock normally :)




If Nvidia cards are underclocking in the same way as the ATI ones then I see no reason why not - it's simply a case of the UVD setting overriding the usual 3D setting when the splash plays. To the best of my knowledge though, I've not seen any reports from Nvidia users complaining about underclocking, so afaik this is an ATI only issue.

Nvid cards wont be affected UVD is an ATI program

[O_Smiladon]

Glad it's been an improvement. What seems to be happening, as I said before is that the Ubi splash forces the card to video clock speeds, but Powerplay (or whatever) isn't detecting the swap back to 3D speeds. If you check GPU-Z and make sure that it's refreshing while not on screen, you should be able to see if your card is clocking full during gameplay. Without the splash movie confusing the card, the game seems to clock normally :)




If Nvidia cards are underclocking in the same way as the ATI ones then I see no reason why not - it's simply a case of the UVD setting overriding the usual 3D setting when the splash plays. To the best of my knowledge though, I've not seen any reports from Nvidia users complaining about underclocking, so afaik this is an ATI only issue.

Do you mean powercolor cards ?

I have a HD4890 1 GB powercolor and I am not to sure if I have an a improvment.

It still stutters down low sooooo not sure.

O_Smiladon

[Orpheus]

Nvid cards wont be affected UVD is an ATI program

Ahh right, thanks for the info!


Do you mean powercolor cards ?

I have a HD4890 1 GB powercolor and I am not to sure if I have an a improvment.

It still stutters down low sooooo not sure.

O_Smiladon

Smiladon - no, I mean the ATI Powerplay function:

http://www.amd.com/us/products/technologies/ati-power-play/Pages/ati-power-play.aspx

All it does is throttle up/down the GPU depending on load. It should detect changes and throttle the card appropriately. The Ubi splash video that plays on startup was locking the card to video speeds (UVD) and the Powerplay function wasn't detecting the return to 3D, so the game was effectively running on half a graphics card.

For ATI cards with the underclocking problem, when running GPU-Z I saw a max clock spike on initial load, then the Ubi splash locks the GPU clock at 400mhz. Removing/renaming the .wmv file solves the problem as there's no transition from 3D to 2D clocks - the game runs at full 3D clock speed.

If you're not sure if you have this issue, run GPU-Z before you load CloD and see how your GPU clocks up. If it's stuck at half clock speeds (400mhz in my case, may differ for different cards), try renaming the ubi splash. Not all ATI cards are affected by this issue, so if your card clocks properly there's no need to do it - but if your card isn't clocking properly, this will solve it & give you a nice performance boost.

[O_Smiladon]

Thanks Orpheus

O_Smiladon

[Phazon]

I recommend all ATI users do this fix regardless of their card model. New drivers may change your card's behaviour to cause you to be affected.

[Blackdog_kt]

Mine definitely clocks properly now, since i'm getting the same "reboot after 40 minutes" that i got when forcing the clocks via Ati tray tools :-P


It's weird because i've never had problems in any other game. I'll try switching it to a different slot so that it gets better ventilation within the case. Failing that, it could be a power supply issue (the leads could be delivering low amperage). I use a 700w thermaltake PSU that i recently got after my previous one died, maybe i have to RMA this one too...it's a good thing the guy i buy from only carries brands with a 3 year warranty :grin:

So, just in order to gradually eliminate possible causes and find out what's to blame, if i set GPU-Z to log the parameters to a file does it only log what has been monitored up to the point that i enable the log function and specify the file name? Or does it keep appending to that file for as long as it's running (which would mean it would record up to the point the PC reboots)?

The reason i'm asking is that i need a logfile showing my temperatures at the moment the reboot occurs, this way i can decide if i just need to add an extra case fan or if i should look for other problems. Any ideas?

[RE77ACTION]

You could try to underclock your CPU and/or GPU just a bit to get its power usage down (5 or 10% should already make the difference). This way you could test if your system holds out longer. Of course I've assumed you don't have any heat issues with your case, GPU or CPU. You could also check if the fan of your power supply is working properly.

[Renny]

A simple fix has been discovered to fix the clockspeed issue. It is because of the flash Ubisoft logo video that plays when you start the game which confuses the card.

Simply rename or delete the Ubisoft logo video found in \Steam\steamapps\common\il-2 sturmovik cliffs of dover\parts\core\GUI.

It has fixed the issue for my HD4870 and alot of other AMD users! :)

OMG THIS IS THE BEST ADVICE that made a big improovement...fps upfrom 22 to 60 no stutters you are a star..
;)

works on latest Beta too

forever in your debt

DEVELOPERS PLEASE FIX THIS IN NEXT PATCH

[David198502]

only a attempt to help,...but did you delete the ubi logo file??may this helps

[Renny]

Deleted ubi logo
But latest patch FRAPS not work see other posts about that