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i7-5820k bottlenecking gtx 1080 ti, frame rate drops and stuttering

7K views 53 replies 19 participants last post by  LancerVI 
#1 ·
So, for almost 6 months I have been getting massive frame rate drops and stuttering in games. I tried everything I was recommended including a fresh clean windows install. I even had my pc checked for any faulty hardware, cleaned of all virus' and malware (which there was a trojan and some adware), & stress tested. I got my rig back and it still was dropping frames making games unplayable. I found out what the problem is, my i7-5820k CPU is using 100% on all cores when playing games which in return is bottlenecking my Gtx 1080 ti. I have tried to stop processes which showed only the games are taking up all the CPU power, uninstall apps that were installed when this started, and lower graphics options (which i shouldn't have to do with a brand new and one of the fastest graphics cards available. My temps are fine the cpu is not getting over 50 degrees celsius at 100% load and my gpu is not getting over 70 degrees celsius. The rest of my hardware is as well not overheating. I have updated the bios to the current one, updated any and all drivers. Does anyone have any suggestions? My cpu should not be bottlenecking the gpu. I did have 2 980 ti's and the same cpu and it worked for 2 years without any fps drops and/or stuttering but then started to about 6 months ago. Thank you. My other specs are
Asus X99 Pro MB
16 gigs Corsair Vengeance LPX 2666mhz Ram
Samsung SSD
Western Digital Black HD
1300w EVGA PSU
Plenty of fans and great airflo
 
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#3 ·
What games? I'm curious because I have a similar setup. I7-5820k, 16 GB of RAM, and a 1080 ti. After burning out my 980's, I reset everything to stock and haven't gotten around to re-overclocking the CPU. Also, what size are your drives? I'm assuming the SSD is a boot drive and games are stored on the mechanical drive.
 
#5 ·
Quote:
Originally Posted by xSociety View Post

Something very weird is going on for sure. I have a 5820k and a 1080 Ti and never see my CPU being taxed that hard. What games are you noticing this on?
+1

The only game where iv noticed any difference between stock and overclocked is PUBG, Where overclocking gains a extra 60fps almost everywhere in the game.
But never see any games take it over 60% CPU useage.
 
#6 ·
I'm also curious about what games since none of the ones I play come close to using 100%. Are you sure you have 12 threads showing in task manager? Also based on your temperatures, you should be able to overclock to get some extra performance.

On a side note, going to 2400MHz+ ram may be a worthy swap.
 
#8 ·
I have updated the bios, have the cpu overclocked to 4.2 and the ram is at 2666mhz, and updated all drivers. The weird thing is I used to get normal CPU usage and no framerate dips, then all of a sudden stutter city even on games that never had frame rate issues. The CPU power% goes to 99-100% on all 6 cores and all 12 threads but like I said it used to be normal like 50-70% on load. Most of my games have fps drops, i.e. The new Prey, Mass Effect: Andromeda, Gears of War 4, Dark Souls 3, Ghost Recon: Wildlands, Battlefield 1, and many others. Even old games like Dead Space use 96% on 4 of the 6 cores and fps dips. I have tried everything, putting the CPU to stock frequency, clean windows install, uninstalling anything that I installed when this started. I even had my rig tested for any faulty hardware but I am thinking the guy must have missed something. Could it be one of the cores on the CPU is dead or is my PSU dying? I obviously have enough wattage but I have noticed a couple of the USB ports on the back of the motherboard will either not detect when something is plugged in or it will turn off whatever is plugged in.
 
#9 ·
Quote:
Originally Posted by Some Random Guy View Post

What games? I'm curious because I have a similar setup. I7-5820k, 16 GB of RAM, and a 1080 ti. After burning out my 980's, I reset everything to stock and haven't gotten around to re-overclocking the CPU. Also, what size are your drives? I'm assuming the SSD is a boot drive and games are stored on the mechanical drive.
The new Prey, Mass Effect: Andromeda, Gears of War 4, Dark Souls 3, Ghost Recon: Wildlands, Battlefield 1, and many others. Even old games like Dead Space use 96% on 4 of the 6 cores and fps dips. SSD is 500gb and my mechanical is 2TB. I thought maybe it was a drive issue but I have games that are stuttering on both drives
 
#10 ·
One thing I have noticed, on HWinfo Monitor under my motherboard it says it is 30 degrees Celsius but below that is 3 different temps 2 of them are 46 degrees Celsius and one is 100 degrees Celsius. All of my other hardware have regular temps no overheating but i am curious what temp. 3 is?
 
#12 ·
Quote:
Originally Posted by MeloDRUMatic View Post

One thing I have noticed, on HWinfo Monitor under my motherboard it says it is 30 degrees Celsius but below that is 3 different temps 2 of them are 46 degrees Celsius and one is 100 degrees Celsius. All of my other hardware have regular temps no overheating but i am curious what temp. 3 is?
Those will be vrm, chipset temps, I wouldnt worry about them, I have an asus p5k that has a 125°C temp, can I beleive it not a chance.

Silly question, but did you install the mobo drivers?
 
#14 ·
Check and see what's using up the resources. I had this issue awhile back noticing my idle temp on my Sandy spiking. Disabled Windows update, which i found out as the culprit and my temp went back to normal. So did my fps in games. It could be something else like chrome.
 
#15 ·
Quote:
Originally Posted by rdr09 View Post

Check and see what's using up the resources. I had this issue awhile back noticing my idle temp on my Sandy spiking. Disabled Windows update, which i found out as the culprit and my temp went back to normal. So did my fps in games. It could be something else like chrome.
From what I see in task manager, the games are the ones using up most of the resources which shows for i.e. Mass Effect Andromeda is using 100% but I will check again. And my temps are the same they always have been which is relatively low even on idle. How do you disable windows updates in Windows 10? You used to be able to tell Windows to only download and install updates but to ask first now I can't seem to change the options on them
 
#16 ·
Are you getting consistent CPU clock speeds under load? Have you tried any stability tests like Real Bench or Prime95?

I know your CPU temps are fine but depending on the location of the read point you might be getting throttling due to VRM temps? Knocked the VRM heatsink at some point?

GL.
 
#17 ·
Quote:
Originally Posted by Spanners View Post

Are you getting consistent CPU clock speeds under load? Have you tried any stability tests like Real Bench or Prime95?

I know your CPU temps are fine but depending on the location of the read point you might be getting throttling due to VRM temps? Knocked the VRM heatsink at some point?

GL.
Yes I am getting consistent CPU clock speeds. I have used Real Bench and Prime 95 and they run stable. I haven't knocked the VRM heatsink at some point. Were is the heatsink usually on a X99 Asus motherboard? The VRM's are showing 100 degrees celsius but Frostbite said it is normal. Is this a normal VRM temp?
 
#18 ·
The VRM heatsinks are directly above the CPU socket, between the ram slots. Assuming you've got a standard orientation case.

I don't know about "normal" @100C technically the mosfets can handle −55 to +150 but I wouldn't consider that a recommended range. Also I'm not sure where the thermal probe is located so that may be the temperature of the PCB near the mosfets not the actual chip temps. That still seems high to me for what is a pretty decent but not sky-high overclock.

Edit: Have a look at the thermal images in this review http://www.tweaktown.com/reviews/7130/asus-x99-pro-motherboard-intel-review/index8.html
Much lower numbers with a 4.5ghz overclock and an 8 core CPU.
 
#19 ·
If you're actually getting temps of 100C on the VRM that's quite toasty. It's possible they are throttling the chip in a way that isn't immediately apparent in software. That's an issue that's come up a lot recently with the X299 launch and how much power those chips are pulling and causing throttling under some heavy workloads. My 5820k is running at 4.8GHz under water at 1.38v and I'm only seeing VRM temps in the 70's. What voltage is your chip running?

Something seems very odd for some of those games to use so much of your CPU resources. I realize mine is clocked a bit higher but I've played all the games you mentioned and never had an issue with my CPU holding my 1080ti back. What resolution and refresh rate are you aiming for? (sorry if it was mentioned already, didn't catch it) I'm playing at 1440 ultrawide 100Hz. Haswell at 4+GHz should be able to push most games past 100fps assuming the video card can as well.
 
#20 ·
Quote:
Originally Posted by Fuzzywinks View Post

If you're actually getting temps of 100C on the VRM that's quite toasty. It's possible they are throttling the chip in a way that isn't immediately apparent in software. That's an issue that's come up a lot recently with the X299 launch and how much power those chips are pulling and causing throttling under some heavy workloads. My 5820k is running at 4.8GHz under water at 1.38v and I'm only seeing VRM temps in the 70's. What voltage is your chip running?

Something seems very odd for some of those games to use so much of your CPU resources. I realize mine is clocked a bit higher but I've played all the games you mentioned and never had an issue with my CPU holding my 1080ti back. What resolution and refresh rate are you aiming for? (sorry if it was mentioned already, didn't catch it) I'm playing at 1440 ultrawide 100Hz. Haswell at 4+GHz should be able to push most games past 100fps assuming the video card can as well.
^this. Make sure there is good airflow inside case. Direct a small fan on the ht sinks if needed.
 
#21 ·
Quote:
Originally Posted by Fuzzywinks View Post

If you're actually getting temps of 100C on the VRM that's quite toasty. It's possible they are throttling the chip in a way that isn't immediately apparent in software. That's an issue that's come up a lot recently with the X299 launch and how much power those chips are pulling and causing throttling under some heavy workloads. My 5820k is running at 4.8GHz under water at 1.38v and I'm only seeing VRM temps in the 70's. What voltage is your chip running?

Something seems very odd for some of those games to use so much of your CPU resources. I realize mine is clocked a bit higher but I've played all the games you mentioned and never had an issue with my CPU holding my 1080ti back. What resolution and refresh rate are you aiming for? (sorry if it was mentioned already, didn't catch it) I'm playing at 1440 ultrawide 100Hz. Haswell at 4+GHz should be able to push most games past 100fps assuming the video card can as well.
The voltage my chip is running is set to Auto and is using 1.2 i think nothing above that. The resolution I am using is 1440p @144hz. Does this mean I have a faulty MB? There is great airflow and I used to have better VRM's temps.

BTW, I think I said this before but I get throttling even on Stock CPU frequency.
 
#25 ·
Quote:
Originally Posted by MeloDRUMatic View Post

I will try hdtune,

I am not sure if the cpu is down clocking when it stutters. How do I watch hwinfo while a game is running?
Either a 2nd monitor or run the game at a lower res while in windowed mode.

Edit: Better yet if the game allows, run in windowed mode and just drag the window smaller so it's still rendering at 1440p.
 
#26 ·
Honestly with all the mess, i'd just try to RMA the mobo and hope for the best; that is you get a recplacement one without a bunch of going back & forth about warranty and the like.

You're going to be spending a ****load of time diagnosing this through software when swapping mobo with something identical (or at least same chipset) might already make the problem go away, pretty much providing the solution at the same time.
 
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