I fixed my frame drops after i discovered my cpu was running too hot under heavier loads which was causing the cpu clock muliplier to drop affectively only giveing my 1500mhz or less. I bought a $50 liquid cpu cooler from corsair and went into my bios and dissabled all the power saving options under the advanced setting for the cpu. My bios (gigabyte MB) had a setting to lower the cpu speed to help maintain temperature, I disabled that as well. Disabling the power saving options affectively locked the cpu at it's full speed the entire time and doesn't let the system lower the mulplier. The cooler worked great dropping my cpu temps by about 40% (doesn't go over 50 Celsius now where as before I would get into the 70's and 80's).

 

This fixed my low fps problem that to me appeared to develop randomely. I have an older system - I7 920 chip that is pegged at 3000mhz, a gtx 760 2gb, and 6gb of dd3 memory. I am now at 25-45fps with a2a Comanche, my traffic 6 set at 30%, ASN weather, and photoscenery from Megascenery. Sliders are either all maxed or close to max. When i'm in non photoscenery areas I have autogen set to dense and my frames are about the same as my photoscenery areas.

My frames drop to 20 - 25 when i'm in the aerosoft a319 but things are still fairly fluid. Most importantly, its now consistent, no more crazy frame drops. I will admit my stock cooler I had prior needed new thermal grease as when I went to replace it I noticed that the original grease had turned to dust.

Thanks for the input guys. And a happy 2016 to all of you!

@IM, I only have the option to selech 60 Hz

@Decker; I know temps are important, but as you can see in an earlier post in this thread temps are not the issue.

 

Tomorrow P3D suddenly performed bad again. I decided to do a freah install of the simulator and all addons. I just finished setting up P3D. I locked my fps to 30 again. But the performance was still bad. At a default Friday Harbor I only get around 12-18 fps.

 

I know for sure now that it is not related to Orbx addons, as the issue now rises with a clean P3D install.

 

Looks fine to me CPU and process wise.

 

Can you install nvidia inspector.

 

Then take two screenshots of nvidia inspector, one when running at 30+FPS, and one when running in the low 14-ish.

Just curious about GPU temps / Load and P-State when the problem occurs.

 

I followed your advise and checked the values of my GPU with Nvidia Inspector. The P-state was at 5 most of the time. That can't be right as it should be at 0. At least that is the value when P3D performs normally as seen in my post #82. Hmmm. Maybe a GPU problem after all? If so it only happens with P3D.

 

Your PCIe interface stands on X16, X30 would normally!

 

holliwutt

Okay P5, here we are ^^

Go to the nvidia drivers settings, and make sure the power management mode is set to maximum performance instead of adaptative.

Go to the nvidia drivers settings, and make sure the power management mode is set to maximum performance instead of adaptative.

 

Thanks Jerome, I assume you mean this? If so, the setting was set at the first option, to let the 3D application decide: 

 

Bert,

 

Meant this one :

 

Interesting topic. I came here because I don't have the exact same problem but last week I did a complete reinstall of Windows 10 and P3D 3.1 plus Global and FTX Norway and somehow performance struggles big time in certain situations that didn't give me problems at all before. Like around sunset or near clouds. That used to be a problem with high AA settings using Inspector but I don't use those settings at all anymore. Performance can drop to (low) mid teens which never happened before with 3.0 and previous versions where fps would stay >30 all the time (and quite often a LOT higher too). I was wondering if your problems started with 3.1 or already with 3.0...? I get the feeling 3.1 is doing something different on my PC...

 

EDIT

Did another flight. Seems fps is lower all the time. Struggling to stay at 30 with fps unlimited and quite often performance gets noticably choppy. Can't say I like it...

Your PCIe interface stands on X16, X30 would normally!

 

holliwutt

 

Yeah I know. I have tested, but even with PCIe interface x30 and P-state at 0 frames were still only around 12 fps...

Bert,

 

Meant this one :

 

 

Thanks. I just tried these settings. Unfortunately they didn't help...

Before the reinstall of P3D I did this morning things actually went better. My previous install would perform well most of the sessions. Only ocasionally P3D performed at one third of what to expect. With my current install, which is a clean P3D without addons, I've only experienced bad performance, all the times I started it today.

I also have a thread at the Orbx forums, because I figured it might have something to do with their addons. I know now that is not the case. Someone overthere suggested to do a complete reinstall of my OS and then see what happens. I think I might just try that, although I'm also very curious about a solution that prevents a reinstall of the OS. Nevertheless, something is wrong...

 

Interesting topic. I came here because I don't have the exact same problem but last week I did a complete reinstall of Windows 10 and P3D 3.1 plus Global and FTX Norway and somehow performance struggles big time in certain situations that didn't give me problems at all before. Like around sunset or near clouds. That used to be a problem with high AA settings using Inspector but I don't use those settings at all anymore. Performance can drop to (low) mid teens which never happened before with 3.0 and previous versions where fps would stay >20 all the time (and quite often a LOT higher too). I was wondering if your problems started with 3.1 or already with 3.0...? I get the feeling 3.1 is doing something different on my PC...

 

As I wrote in the first sentence of my original post it all started with P3D v3 Jeroen. And it continued with v3.1. Those sessions that P3D performed normally I also experienced a drop in frames at dusk, especially when viewing in certain directions. I could live with that. I can't live with a sim that performs well one session and gives only one third of the fps the next...

I guess there´s no PCI Express x30. The fastest today is the x16. 

Your PCIe interface stands on X16, X30 would normally!

 

holliwutt

 

 

I guess there´s no PCI Express x30. The fastest today is the x16. 

 

Ah, ok. Looking at the PCIe Express value as seen in the screenshot in post #92 it's value is 3.0 @ 1.1 x 16. Maybe holliwutt means the value should be 3.0 @ 3.0 x 16. When running games like Project Cars and Dirt my GPU has that last value. P3D has it also, but as said it didn't help fps.

Ah, ok. Looking at the PCIe Express value as seen in the screenshot in post #92 it's value is 3.0 @ 1.1 x 16. Maybe holliwutt means the value should be 3.0 @ 3.0 x 16. When running games like Project Cars and Dirt my GPU has that last value. P3D has it also, but as said it didn't help fps.

 

He was talking about the speed I guess.

 

Anyway, you should look the reason your GPU is in P5 state. The clocks are under the normal. Your GPU is not boosting.

 

In here, the moment I open P3D, GPU goes to P0 state and the core clock goes to the normal value (1190 Mhz). When the fly iniciates, core clock goes to it´s boost state (1392 Mhz).

 

Yours, in the middle of the flight, is in 772Mhz. I guess it´s caused by the change to P5 state.

 

 

Looking at the PCIe Express value as seen in the screenshot in post #92 it's value is 3.0 @ 1.1 x 16

 

Hi Bert,

 

Without P3D v3.1 running my P-State is P8 and PCIe Interface is 3.0 @ 1.1x16.  When I start P3D my P-State drops to P0 and PCIe Interface value is 3.0 @ 3.0x16.  Just to confirm, you have set both nVidia Control Panel and Inspector to Single Display and Prefer Maximum Performance in global and P3D settings?

 

Have you tried the nVIdia PowerMizer utility?  It might help.  http://forums.guru3d.com/showpost.php?s=a3e8df0212388d33581a13acb42f0b09&p=5100475&postcount=11

Thanks for your input Robert. When I started P3D my P-State dropped to P0 as well. The PCIe Interface value was also 3.0 @ 3.0x16. But FPS was still only 12. During a P3D session I did today I did see P-state drop to P5 and the PCIe Interface back to 3.0 @ 1.1x16 though, even though I was cruising low in the default Raptor and one would expect the GPU to work at maximum power. At a certain point I also noticed the P-state and PCIe Interface value go back up again, but that didn't restore FPS...

Later today I decided to do a clean install of my OS and Prepar3D. So I'm now typing this post from a virgin Windows 10 PC. I have Prepar3D already installed, but I'm unable to test it because my activation has reached its limit. I've sent LM an e-mail, but I guess it will be after the weekend when they reply. I will make sure I'll check the settings as you suggest. I hope reinstalling Windows has solved my issue, but I'll have to wait a few more days to find out.

Oh shoot!  That's too bad Bert, did you uninstall P3D before working on the PC?  I wonder if your settings are too high, v3.1 has improved on surface reflections which are real hard hitters on a system.  Have a look at Matt Davies youtube vid and try to set your settings as he has:

 

 

Maybe that will help.

 

Robert

Oh shoot!  That's too bad Bert, did you uninstall P3D before working on the PC?  I wonder if your settings are too high, v3.1 has improved on surface reflections which are real hard hitters on a system.  Have a look at Matt Davies youtube vid and try to set your settings as he has:

 

 

Maybe that will help.

 

Robert

 

Thanks for the link, I'll check it out. Yes, I always did a proper uninstall of P3D. I don't think my settings were to high. I have had very enjoyable P3D sessions with most sliders to the right with a framerate of 30fps. Then the next session I would only get 12 fps. This has also happened with V3...