Sudden low fps on really good pc

i have been playing alot of nba 2k18 and have had zero problem with fps but all of a sudden it has dropped to a stable 30fps its fine in cutsceens going up to about 200fps. i have been wathing how much my system is using and it all looks fine. It is a completly new 1080ti. My cpu temp. in game is around 46°c ( I have the same problem with multiple games not just nba)
My specs are:

Processor:
Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz
Manufacturer Intel
Speed 3.3 GHz
Number of Cores 6
CPU ID BFEBFBFF000306F2
Family 06
Model 3F
Stepping 2
Revision

Memory:
RAM 24 GB DDR4

Video Card
NVIDIA GeForce GTX 1080 Ti
Manufacturer
Chipset GeForce GTX 1080 Ti
Dedicated Memory 12 GB
Total Memory 12288 MB
Pixel Shader Version 5.1
Vertex Shader Version 5.1
Hardware T & L Yes
Vendor ID 10DE
Device 1B06
Plug and Play ID VEN_10DE&DEV_1B06&SUBSYS_85EA1043&REV_A1
Driver Version 23.21.13.9077

Operating System Microsoft Windows 10 (build 16299), 64-bit
Service Pack 0
Size 64-bit
Edition NVIDIA
Version 10.0.16299
Locale 0414
13 answers Last reply
More about sudden low fps good
  1. 1. Make sure all drivers/windows updates are current.
    2. Clean install OS and clean dust in the case.
  2. vapour said:
    1. Make sure all drivers/windows updates are current.
    2. Clean install OS and clean dust in the case.


    All drivers are updated with driver booster 5
    And my case is dust clean i have a pc vacuum cleaner
  3. are you playing 1080p or what? Is setting ultra?
  4. I had very similar issues (and currently too) with high-end hardware, clean OS reinstall many times, latest drivers, different versions of some drivers (tried old, new, etc.) and currently I'm in even worse situation...

    You can try testing the DPC Latency and Interrupt-To-Process Latency. This causes so many issues and it's more than just pain in the back to identify and "fix" in some way. The best way to test this is to download LatencyMon (The current vesion is 6.51) and to run in for a while, then report back the results.

    I currently don't have any potential fixes for all of my problems and headaches, but in most cases it's related to DirectX Graphics Kernel Drivers and System Components / Drivers.

    Here is my "novel" / explenation in more detail. (I am not asking for help or advice here, only if someone is interested in reading / looking at it for extra information)
  5. vapour said:
    are you playing 1080p or what? Is setting ultra?


    Im playing at 2560*1440p on medium settings
  6. If you change to ultra, any changes to the fps?
    How about 1080p?
  7. vapour said:
    If you change to ultra, any changes to the fps?
    How about 1080p?


    Not really, i get 25-30fps regardless. But when i play on low settings 1080p i get around 40-50 fps
  8. try a clean install then. 40-50 in 1080p doesn't make sense.
  9. vapour said:
    try a clean install then. 40-50 in 1080p doesn't make sense.


    Tried clean install, nothing changed still 25-30fps
  10. Remove all graphics drivers with DDU. Even on a clean install, Windows 10 is notorious for auto installing incorrect/outdated drivers. It's best to run DDU in safe mode to insure the most thorough removal process.
  11. Ethan Murphy said:
    Remove all graphics drivers with DDU. Even on a clean install, Windows 10 is notorious for auto installing incorrect/outdated drivers. It's best to run DDU in safe mode to insure the most thorough removal process.


    Tried that, no differnce.
  12. Thanks for the support guys. I somehow managed to fix it, not sure how. But here is what i did: Applyed new thermal paste to cpu (NOCTUA NT-H1 Pro-grade Thermal Grease) and changed the location of the grafic card. Turn on my pc again expeting no change but it actually worked i have no problem playing games at ultra in 2560x1440 now
  13. Congrats, could be pcie Lane/ slot issue.
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