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  1. #1
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    Zephyrus S GX502GW massive FPS drops

    Specs:
    - GPU: RTX 2070
    - RAM: 32GB
    - CPU: i7-9750H
    - Storage: 1TB primary SSD, 2TB secondary SSD

    Issue:
    Since about 2 weeks ago, I've been having massive FPS drops while gaming, as for the first few minutes or so after startup, I get normal FPS (150-240 in most games), but then the FPS drops to between 9-30 and does not recover, and the GPU shows 99% usage, even in older games. I've run a system diagnostic on the memory, clean reinstalled the NVidia drivers, made sure that the GPU wasn't in power saving mode, and the driver update provided only minimal improvements. This is really annoying me, and I was wondering if anyone else had the same issue, and if so, if they had a fix.

  2. #2
    New ROGer Array fbajjar PC Specs
    fbajjar PC Specs
    Laptop (Model)ASUS ROG Zephyrus S GX502GW
    MotherboardIntel HM370
    ProcessorIntel Core i7 9750H
    Memory (part number)Samsung 16GB 2666Mhz SDRAM
    Graphics Card #1NVIDIA RTX 2070 Max-P
    Sound CardRealtek ALC294
    MonitorSHP14D3
    Storage #1Intel 660p NVME SSD 1TB
    Power SupplyADP-230GB B
    Mouse ROG GLADIUS II
    Headset ROG CERBERUS
    OS Windows 10 Home 64bit
    Accessory #1 ROG Eye Webcam

    Join Date
    Dec 2019
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    First, verify that you are n discrete graphics mode not optimus (in armoury crate you have a simple indicator for that, if you see optimus then click on it to change it to discrete graphics and reboot as prompted.)
    Second, check your temperatures, from what you have described, there is a high chance that it is the laptop massively overheating and throttling either your GPU or CPU hard to prevent damage.
    If it's the temps and your laptop is under warranty i recommend you RMA it ASAP because using the laptop like that could damage the components due to excessive heat.

  3. #3
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    Are these temps an issue?

    Quote Originally Posted by fbajjar View Post
    First, verify that you are n discrete graphics mode not optimus (in armoury crate you have a simple indicator for that, if you see optimus then click on it to change it to discrete graphics and reboot as prompted.)
    Second, check your temperatures, from what you have described, there is a high chance that it is the laptop massively overheating and throttling either your GPU or CPU hard to prevent damage.
    If it's the temps and your laptop is under warranty i recommend you RMA it ASAP because using the laptop like that could damage the components due to excessive heat.
    Thanks for the response, I am definitely in discrete graphics mode, and my CPU is running at about 95-98 C while gaming, while the GPU is running at around 87-95 C. Are these temperatures enough to be causing the massive throttling?

  4. #4
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    Hello GarudaXx,
    May you double check if your BIOS has been updated to the latest version?
    https://www.asus.com/supportonly/GX5...Desk_download/
    Thank you.

  5. #5
    New ROGer Array fbajjar PC Specs
    fbajjar PC Specs
    Laptop (Model)ASUS ROG Zephyrus S GX502GW
    MotherboardIntel HM370
    ProcessorIntel Core i7 9750H
    Memory (part number)Samsung 16GB 2666Mhz SDRAM
    Graphics Card #1NVIDIA RTX 2070 Max-P
    Sound CardRealtek ALC294
    MonitorSHP14D3
    Storage #1Intel 660p NVME SSD 1TB
    Power SupplyADP-230GB B
    Mouse ROG GLADIUS II
    Headset ROG CERBERUS
    OS Windows 10 Home 64bit
    Accessory #1 ROG Eye Webcam

    Join Date
    Dec 2019
    Reputation
    20
    Posts
    15

    Quote Originally Posted by GarudaXx View Post
    Thanks for the response, I am definitely in discrete graphics mode, and my CPU is running at about 95-98 C while gaming, while the GPU is running at around 87-95 C. Are these temperatures enough to be causing the massive throttling?
    Dude the GPU is at 87-95C??! RMA it asap, it shouldn't even reach these temperatures because by design it should HEAVILY thermal throttle when it reaches 87C. In my Zephyrus S GX502 even at stock without undervolting and such the GPU NEVER goes beyond 85C (with undervolting the CPU its 82C). No wonder you have such massive fps drops, the GPU is limiting itself hard because its beyond the maximum temp that is designed for it.
    Sorry for the late reply btw, i'm not that active here.

  6. #6
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    We have the exact same configuration even with the SSDs and I am not getting this issue. Would you be able to run a gaming benchmark (3dmark Stability Test, Heaven) then run a hardware monitoring tool? (Afterburner/RivaTuner, FPS Monitor, HWMonitor)

    After a couple of loops, observe the behavior of your cpu-gpu temps and usage. This will help you pinpoint the issue.

    Also note that if you lower the settings and resolution enough, the CPU actually becomes the bottleneck and the GPU should not be 99%. If it still 99%, it might be a hardware issue (RMA) or another process is using your GPU. (malware/cryptominer)

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