LatencyMon Spikes with Wooting 60HE+ on NZXT N7 Z790 + StarTech PCIe USB Card — Seeking Support

[astral yew]

Hey everyone — I’m running into some frustrating input inconsistency issues with my Wooting 60HE+, and I’m hoping to get some support or community insight.

I’m experiencing irregular movement behavior in Valorant (floaty strafes, inconsistent resets, RT misfires), and after deep testing, LatencyMon shows recurring DPC and ISR spikes tied to USB-related drivers.

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System Specs:
• CPU: Intel Core i7-14700K
• Motherboard: NZXT N7 Z790 (BIOS up to date)
• RAM: Corsair Dominator Titanium DDR5-7000MHz (2x16GB)
• GPU: PNY RTX 3070 Ti
• Storage: Samsung 990 Pro NVMe
• PSU: NZXT C850W Gold
• Cooler: NZXT Kraken Elite 360
• Case: NZXT H6 Flow RGB
• OS: Windows 11 24H2 (Build 26100.3476)

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Connected USB Devices:
• Keyboard: Wooting 60HE+ (plugged into StarTech card)
• Mouse: Logitech G Pro Superlight 2 (USB 2.0 on motherboard)
• Audio Interface: GoXLR Mini (USB 3.2 Gen 1 on motherboard)
• Expansion Card: StarTech PEXUSB3S44V (SATA-powered, 4x Renesas controllers)

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What I’ve Done:
• Disabled USB Selective Suspend + Fast Startup
• Plugged devices into separate controllers (no hubs)
• Verified DPC spikes mostly tied to:
• Wdf01000.sys
• USBXHCI.sys
• Occasionally ACPI.sys
• Disabled CPU C-States + SpeedStep in BIOS
• Verified stable polling + clean analog curves in analog.wootility.io
• Ran Wootility Stable and saved profile directly to keyboard

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Still Seeing These Issues:
• LatencyMon shows spikes during gameplay, even with minimal background tasks
• Movement sometimes cuts late or RT doesn’t fire cleanly — even with calibrated switches and solid config (1.2mm actuation, 0.35/0.50mm RT)
• Mouse input also feels inconsistent under full load (suggests controller bottleneck?)

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My Ask:
1. Is this a known limitation with Z790 chipset USB interrupt handling?
2. Could Wooting’s analog signal polling contribute to higher DPC load?
3. Are there Wooting firmware settings or smoothing toggles that reduce interrupt strain?
4. Would moving to a different USB card (Inateck KT4006, Sonnet Allegro) offer cleaner performance?

Open to all suggestions — really just trying to isolate the root cause of input inconsistency in a high-performance setup. Appreciate any feedback from the devs or others with similar builds.

Thanks!

[fallen bay]

Thanks for posting your support request!

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[brittle surge]

Gotta ask the obvious question - Did you try the 60HE directly into the Motherboard instead of through a PCIE card?

Also... why do you need this card exactly in the first place? The motherboard has a dozen USB ports.

[bold patio]

It’s also a shitty motherboard with terrible amount of driver issues. (Source: I have one paired with a 14900k that I’m trying to sell)

Part of it can be attributed to 14th gen, but whatever NZXT added to the motherboard to make it their own (originally sourced from asrock), just causes problems.

[astral yew]

I’ve tried all ports it doesn’t matter. I have 3 devices gpro superlight 2, goxlr mini and wooting. Why do I have so many issues with this keyboard.

The onboard memory never sticks. The keyboard feels different in between rounds. Extreme input lag, high dsp latency.

I’ve tried the desktop app, the web wootility, and the beta. Analog monitor shows issues every time.

I’ve tried 3 different switches

[stone sparrow]

so heres the answers:

1. not that im aware of so it would be pcie card or specific motherboard issues in this case
2. the analog signal isnt polled as usb keyboards dont know what analog is per the default drivers. this would only happen if you have software running actively using our analog sdk.
3. as our keyboard is just using default drivers it would be polled and any interrupt related strain would be caused by not us basically.
4. not sure most people dont need USB cards in the modern age of computers.

to me these issues sound more like inconsistent voltage to the keyboard tbh

[astral yew]

✅ Troubleshooting Completed So Far:
Wooting 60HE+ is now plugged directly into the rear motherboard ports (NZXT N7 Z790), no front panel, no PCIe USB card, no hubs involved.

Performed full firmware reset, profile export/import, and confirmed in-game profile saves mid-match in Valorant.

Disabled USB Selective Suspend, Enhanced Power Management, C-States, and SpeedStep in BIOS.

Ensured Windows is running Ultimate Performance, and tested without GoXLR, Corsair iCUE, or Wootility running.

Removed all non-essential USB devices to rule out polling saturation or shared IRQ issues.

Used LatencyMon, which still shows DPC latency spikes with the keyboard connected directly to the motherboard.

Observed analog input inconsistencies happening regardless of whether I use the Wootility Web or Desktop version.

🔁 Current Symptoms:
Input feels inconsistent from round to round in Valorant — sometimes actuation is snappy, other times there’s perceptible float or input delay.

This happens even when no SDK-related software is active (just standard Wootility + firmware).

DPC latency spikes remain, even with minimal USB devices and the Wooting on a direct motherboard port.

There seems to be no consistent behavior between the web and desktop Wootility apps — same settings, same profile, yet feel varies.

🤔 Possible Theories/Questions:
Voltage stability: Is there any recommended way to log USB voltage behavior from the keyboard? I’m using a solid 850W NZXT PSU, and no evidence of undervolt or USB brownout via HWInfo or system logs — but the suggestion makes sense.

Wootility versioning: Could the constant auto-updating of Wootility desktop or Web app changes be unintentionally affecting polling, debounce, or analog profile consistency?

Could there be a driver-level conflict or signal misinterpretation with NZXT/ASRock-based Z790 boards specifically?

Really trying to isolate what’s going on — love the Wooting, but this has been very frustrating mid-game. Appreciate your support and happy to share logs, test builds, or try other configurations.

Thanks again 🙏