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GPU Usage Dropping In Demanding Environments

post #1 of 11
Thread Starter 
Hi everyone!

So a few weeks ago I bought a custom-build gaming pc.

Specs:
-16GB DDR3-1600 RAM
-I7-3820 @3.60ghz
-XFX 7970 DD ghz edition - 3Gb
-Windows 8 64-bit
-ZX850W Gold
-2TB HDD 7200rpm

I noticed some GPU % usage drops randomly right after I bought it, and found out it was because my i7-3820 was maxing at 1.20ghz. I solved this issue by changing an ecological setting somewhere in the BIOS. Everything went great from there on, I tested over 10 of the newest games, and they were all running great. I wasn't monitoring my GPU usage anymore, because it wasn't necessary. So, a few days ago, I start playing Crysis (1) for the first time, and I noticed when I entered heavy environments (big battles, lots of vehicles, great views...) that my fps dropped (they dropped to about 40).

At first, I thought. "Well, Crysis is a demanding game, so it'll probably just be maxing out my GPU". A little time after that, I wasn't feeling very good about it, because I pumped about €1.500 in my system and really wanted to have a great gaming experience. So I checked my GPU Usage in %, GPU memory usages and the frequency with afterburner, and found out my GPU usage, in more demanding environments, dropped from 99% (or something above 80%) to about 40%, because **** logic, that's why. I tested other games (BF 3, Saints Row 3 , etc.) and saw this was hapenning on every game.

The first thought I had was: maybe some other hardware is limiting my GPU.

So I check my RAM, on Crysis, it was only using about 2.5gb or something, so I had a big amount left

My CPU was using about 50-60% at 3.60ghz, so it had some unused pottential aswell.

Just to be sure nothing was faulty. I used Prime95 to max my CPU and to load my RAM with 10gb, and using openhardwaremonitor, it showed it was really running at 100% and about 11gb RAM.

I also used MSI combustor to see if it could push my GPU to 100% usage, and it did.

Then I thought, because in some situations (often cinematics and menu's) my PSU made a little noise, there was something wrong with my PSU (850W - Gold). So I make Prime push my CPU to 100% and my RAM to 12Gb + I run Kombuster to see if my GPU reaches 100% in that case.

It did, and now I'm really wondering what's hapenning. I searched the internet for some information (because I don't have a lot of knowledge about it) and they say it could be a problem with throttling etc., but e.g. Metro 2033 can run my GPU at 100% (or 99%, not sure) all the time for a really long time. I also noticed that my GPU temperature doesn't affect my GPU usage %.

I see people with almost the same system specification making their GPU always run at 99-100% on BF3, and I would really like my GPU to always run at about 100%. My v-sync was not running at the time of the drops.

I've literally got NO idea what's wrong, and what I can do about it. I, with very, very basic knowledge about the BIOS, made some changes in its options in the beginning, so I'm going to take some screenshots of it and post them here so maybe you can see if I did something wrong.

If You could help me, I would be very, very thankful.

Jenssky

P.S.: I still have warrenty, but because I pass al the stress tests, I'm scared that they're not going to change parts / solve my (probable) software issues.

Anyway, thanks for your time
post #2 of 11
Thread Starter 
These are all my Bios settings: http://s1298.photobucket.com/user/Jenssky/library/?sort=3&page=1
post #3 of 11
Thats one of the most annoying problems out there.. sorry you got hit with it wink.gif

Have you made sure you dont have VSYNC or a frame limiter app running [Msi OSD has one, if you have that, be sure its set to "0" [or 60 if thats your goal]

Monitor CPU frequency in game with something like HWInfo, make sure it isnt dropping. Also, try overclocking it to see if it aids at all.

Have you tried uninstalling drivers, doing a driver sweep, and reinstalling the latest ones?

How about a different vBios?

Lastly, try increasing Power Limit [%] in MSI AB to +20 if it isnt there already.

I really doubt this is a hardware issue. Something is wrong on the software level..

good luck
Edited by Derpinheimer - 5/27/13 at 8:04pm
post #4 of 11
Welcome to OCN Jenssky thumb.gif Enjoy your stay mate biggrin.gif
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post #5 of 11
have you tested the video card with something like occt? i have rma'd my XFX 7970(2x), 4 times and would probly have to do it again because the fan died again(only 1) so i put them on water blocks biggrin.gif


also which motherboard?
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post #6 of 11
Thread Starter 

Is everything OK Here? I wonder why it says that the pcie v3.0 x16 is only running at 8GB/s. Shouldn't it run at 16GB/s or as mentioned on my motherboard box (X79A-GD45) 32GB/s? How can I change this?

Also, benchmark results:


Using HWInfo to monitor CPU Usage ingame, I don't see any link between my GPU usage dropping and the % of my CPU used.
Edited by Jenssky - 5/28/13 at 3:08am
post #7 of 11
Thread Starter 
Thanks sir.
post #8 of 11
Thread Starter 
Quote:
Originally Posted by lon5210 View Post

Welcome to OCN Jenssky thumb.gif Enjoy your stay mate biggrin.gif
Thanks sir.
post #9 of 11
Thread Starter 
Quote:
Originally Posted by leighspped View Post

have you tested the video card with something like occt? i have rma'd my XFX 7970(2x), 4 times and would probly have to do it again because the fan died again(only 1) so i put them on water blocks biggrin.gif


also which motherboard?
X79A-GD45
post #10 of 11
Thread Starter 
Quote:
Originally Posted by Derpinheimer View Post

Thats one of the most annoying problems out there.. sorry you got hit with it wink.gif

Have you made sure you dont have VSYNC or a frame limiter app running [Msi OSD has one, if you have that, be sure its set to "0" [or 60 if thats your goal]

Monitor CPU frequency in game with something like HWInfo, make sure it isnt dropping. Also, try overclocking it to see if it aids at all.

Have you tried uninstalling drivers, doing a driver sweep, and reinstalling the latest ones?

How about a different vBios?

Lastly, try increasing Power Limit [%] in MSI AB to +20 if it isnt there already.

I really doubt this is a hardware issue. Something is wrong on the software level..

good luck

VSYNC or a frame limiter are not running. I monitored my CPU usage with HWInfo ingame, but didn't find a link between it and my GPU usage drops. I once did a full driver sweep some time ago.
I increased my power limit to +20% and didn't notice any difference. How can I use a different VBios? (I don't really know what a VBios is tongue.gif). Thanks for your time.
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