Why does my cpu bottlenecks my GPU???

[Rcr1094]

Hello people.. My pc specs are here;

Amd fx 8350
Sapphire R9 290x Tri-x
ddr 3 1600 mhz
MSI 990 FXA GD65

My problem is that I never see my GPU usage at %100 and I get lower FPS than I should.. My gpu usage is fluctuating between 0-100 constantly, it is really really unstable.. But when I downclock my GPU on MSI afterburner, GPU load hits %100.. I tried to overclock my cpu to 4.4 or 4.5 but my pc shuts itself in short time.. BTW I have a gigantic cpu cooler that barely fits in my pc case.. Here's the solutions I've tried so far;

- Changing my GPU with another one by warranty..
- Uninstalling the gpu drivers by DDU and re-install them
- Installing the latest driver & bios to my MOBO
- Installing the latest GPU drivers
- Re-Installing my OS
- Overclocking my cpu; changes a bit but not much.. GPU load is still unstable, fluctuating between 0-100 constantly.

I searched the internet for a while and found out that many people had issued with these 2 (r9 290x and FX 8350) but I also saw people with no problem with them. and many people can hit %100 GPU usage with these 2??.. I do not know what is wrong and I am running out of options.. After changing my GPU with new one by warranty, I started to think that problem is my cpu.. What do you guys suggest? Thanks.

 

[Neutr1n0]

All i can say is you should have bought intel haswell cpu for gaming...

 

[Rcr1094]

All i can say is you should have bought intel haswell cpu for gaming...

well, thank you for your answer.. but not really a solution.

 

[bradsctt]

What is your CPU usage looking like in games?

 

[Rcr1094]

What is your CPU usage looking like in games?

I checked it couple of times.. I does not hit %100 either.. most of the games do not use 8 cores anyway...

 

[bradsctt]

Sounds like a background process is hogging resources. Check your start-up programs to see if there's anything that you don't need running from start-up, and if that doesn't help we will go from there.

 

[Rcr1094]

Sounds like a background process is hogging resources. Check your start-up programs to see if there's anything that you don't need running from start-up, and if that doesn't help we will go from there.

I doubt it.. Because I re-installed the whole system couple of times and the problem was still there + nothing extra was running on the background...

 

[yorel140]

Its seems like a GPU problem as you thought but have you seen the HDD usage? sometimes when you have a malware, or the HDD have a "broken" sector you can get this kind of problems. If the HDD usage its normal try changing the GPU because as you said its in warranty

 

[Rcr1094]

Its seems like a GPU problem as you thought but have you seen the HDD usage? sometimes when you have a malware, or the HDD have a "broken" sector you can get this kind of problems. If the HDD usage its normal try changing the GPU because as you said its in warranty

Ty for the reply.. I forgot to mention I bought my HDD and SSD just 2 months ago.. They are new too and looks normal.. When I try a lower GPU like GTX 470 or HD 7850, there are no bottlenect or usage problems.. But when I put R9 r90x gpu usage starts fluctuating randomly between 0-100.. Sometimes it hits 0 and just waits there.. I gave the card back to the warranty and they replaced it with a new one.. But same problem still occurs..

 

[yorel140]

Its seems like a GPU problem as you thought but have you seen the HDD usage? sometimes when you have a malware, or the HDD have a "broken" sector you can get this kind of problems. If the HDD usage its normal try changing the GPU because as you said its in warranty

Ty for the reply.. I forgot to mention I bought my HDD and SSD just 2 months ago.. They are new too and looks normal.. When I try a lower GPU like GTX 470 or HD 7850, there are no bottlenect or usage problems.. But when I put R9 r90x gpu usage starts fluctuating randomly between 0-100.. Sometimes it hits 0 and just waits there.. I gave the card back to the warranty and they replaced it with a new one.. But same problem still occurs..

Yes then its a bottleneck as it seems, do the shop/web where you bought the GPU can change it for another different one? it should work

 

[Rcr1094]

Its seems like a GPU problem as you thought but have you seen the HDD usage? sometimes when you have a malware, or the HDD have a "broken" sector you can get this kind of problems. If the HDD usage its normal try changing the GPU because as you said its in warranty

Ty for the reply.. I forgot to mention I bought my HDD and SSD just 2 months ago.. They are new too and looks normal.. When I try a lower GPU like GTX 470 or HD 7850, there are no bottlenect or usage problems.. But when I put R9 r90x gpu usage starts fluctuating randomly between 0-100.. Sometimes it hits 0 and just waits there.. I gave the card back to the warranty and they replaced it with a new one.. But same problem still occurs..

Yes then its a bottleneck as it seems, do the shop/web where you bought the GPU can change it for another different one? it should work

So you think my GPU is bottlenecking? I was thinking about an issue with CPU since it overheats much even if I have a big cooler like this one here : http://www.vortez.net/index.php?ct=articles&action=file&id=22516

 

[yorel140]

If you overclocked the CPU too much try downclocking it and you will discover the problem, if its still too hot then it wont be a bottleneck.. its that simple, if you have another Cooler to test it try it if you dont then maybe will be that your cpu its broken

 

[Rcr1094]

If you overclocked the CPU too much try downclocking it and you will discover the problem, if its still too hot then it wont be a bottleneck.. its that simple, if you have another Cooler to test it try it if you dont then maybe will be that your cpu its broken

actually it runs on default setting without oc.. it is still around 55-60 degrees :/

 

[st3v30]

Which PSU do you have, it can affect system stability allot.

 

[Montblanchill]

Please let us know what PSU you are using - this sounds similar to power issues I have seen previously.

 

[yorel140]

I dont know if this are your specific components but you can check here that your cpu/gpu are compatible http://pcpartpicker.com/p/3Fjb23

 

[Rcr1094]

Please let us know what PSU you are using - this sounds similar to power issues I have seen previously.

http://www.thinkcomputers.org/reviews/tt_toughpowerxt_775w/6.jpg this one here..

 

[Rcr1094]

I dont know if this are your specific components but you can check here that your cpu/gpu are compatible http://pcpartpicker.com/p/3Fjb23

Like I said I know some other people have no issues using these two but it just happened to me...

 

[Dragos Manea]

Did u try bios upgrade both videocard and motherboard?

EDIT: it will not hurt to borrow a power supply from someone else to test your computer with it.

 

[Rcr1094]

Did u try bios upgrade both videocard and motherboard?

EDIT: it will not hurt to borrow a power supply from someone else to test your computer with it.

my MOBO bios is up to date V20.3 but I could not find any proper bios for my videocard other than the one I already have in mine.. BTW I checked the bios of my video card's both UBER and SILENT modes.. Both looks same in GPU-Z.. Can this be an issue??

 

[Dragos Manea]

well best setting is uber, but a little more noisy. This should not be such an issue even on silent u should not experience that.

 

[Rcr1094]

well best setting is uber, but a little more noisy. This should not be such an issue even on silent u should not experience that.

well, that's the issue.. There are no difference between Uber and Silent mode in practice.. Same fps, same values, same sound.. even their bios looks same in GPU-Z when it should not

 

[Dragos Manea]

Do the bechmark test to see if your computer behaves normally, some games are really bad optimised, just run 3d mark 11 post results and we will see after that.

 

[Rcr1094]

Do the bechmark test to see if your computer behaves normally, some games are really bad optimised, just run 3d mark 11 post results and we will see after that.

will do that in couple of hours.. I just do not understand why it is just me having this issue when others with same specs dont :/

Anyway, I will share the test results in 2-3 hours when I get back home.. Thanks for the help

 

[Rcr1094]

Do the bechmark test to see if your computer behaves normally, some games are really bad optimised, just run 3d mark 11 post results and we will see after that.

http://www.3dmark.com/3dm/6719434 here is my test.. Actually my score has increased since I did it last time... Here is the old test I previously did back in 2 months: http://www.3dmark.com/fs/3569351


But still my gpu usage if fluctuating and I am having lover fps than I should in GTA V