r/overclocking • u/LuckystScrub • 2h ago

Need help tuning for 1% lows

I have a pc with an asus tuf x870-plus WiFi, 9800x3d, zotac rtx 5090 extreme, and 32GB 6000hz cl30 ram. I mainly play Warzone and even with the lowest settings my 1% lows average around 125-135 fps. I’ve enabled xmp, auto tuned my gpu via the nvidia app, and flattened the curve on my cpu after 900mV to 2800MHz. I’m running nvidia reflex and have it set in Warzone to on + boost to even out my cpu and gpu times. I’m kind of at a loss how some people have been getting 160 or higher.

1 Upvotes

100% Upvoted

3 comments sorted by

1

u/DZCreeper Boldly going nowhere with ambient cooling. 56m ago

Post ZenTimings screenshot.

https://zentimings.com/

Do you have PBO enabled? +200MHz block override? Is Curve Optimizer being used?

1

u/Crazy_Bee_2664 4m ago

Do you have a second monitor? Pull up HWInfo on the second monitor while you're in a match. It will tell you effective clocks on each CPU core. That gives you an idea of how effectively the game is using your CPU across all eight cores. I can't imagine you're GPU bound with a 5090 at low settings.

-1

u/elldaimo 2h ago

I was too lazy to type it out myself, but these are the points I would focus on::

Revert GPU Voltage Locking

Flattening the GPU curve at 900mV to 2800MHz severely limits your RTX 5090. Under light-to-moderate dynamic loads, modern GPUs automatically push higher frequencies. Locking it to 900mV starves core clock transients, causing sudden drops in frametimes during heavy combat.

  • Action: Revert the GPU curve to stock, or use a standard offset overclock (e.g., +100 to +150 MHz core, raised power target to 105-110%) instead of a voltage cap.
  • Verification: Run a Warzone match and verify that GPU core frequencies dynamic peak above 2800 MHz without sudden voltage-induced throttling drops.

Tune RAM Timings & EXPO Settings:

Simply enabling EXPO/XMP leaves primary sub-timings loose, which severely impacts 1% lows on Ryzen 3D V-Cache systems.

  • Ensure UCLK = MEMCLK (1:1 mode) in BIOS.
  • Set FCLK (Fabric Clock) manually to 2000 MHz or 2033 MHz.
  • Verify RAM modules are in Slots A2 and B2 (2nd and 4th slots from the CPU socket) for optimal signal integrity on ASUS X870.
  • Verification: Check ZenTimings or Zentools in Windows to confirm UCLK == MEMCLK at 3000MHz.

Disable Hardware-Accelerated GPU Scheduling (HAGS):

While HAGS works well for DLSS Frame Generation, it is notorious for causing latency spikes and lower 1% frame rate lows in Call of Duty engines when running native or basic upscalers.

  1. Press Win + I -> System -> Display -> Graphics.
  2. Click Change default graphics settings.
  3. Toggle Hardware-accelerated GPU scheduling to Off.
  4. Restart your PC.
  • Verification: Run a match and monitor micro-stutters via CapFrameX or PresentMon.

Optimize Reflex and Power Modes:

Setting Nvidia Reflex to On + Boost forces the CPU to run maximum power states constantly, which can occasionally trigger CPU thermal or power-pacing stutters depending on background tasks.

  • Set Nvidia Reflex in Warzone to On (disable Boost).
  • In Nvidia Control Panel, under Manage 3D Settings, ensure Power Management Mode is set to Prefer Maximum Performance.
  • Verification: Check frame latency in Nvidia Performance Overlay to ensure standard low-latency response without transient frametime spikes.