[MUST TRY] For Anyone having issues with mouse latency ( AM4)

Everything about latency. This section is mainly user/consumer discussion. (Peer-reviewed scientific discussion should go in Laboratory section). Tips, mouse lag, display lag, game engine lag, network lag, whole input lag chain, VSYNC OFF vs VSYNC ON, and more! Input Lag Articles on Blur Busters.
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Assticker
Posts: 29
Joined: 20 Aug 2023, 12:19

[MUST TRY] For Anyone having issues with mouse latency ( AM4)

Post by Assticker » 18 Jun 2026, 04:21

Lets try something:

-go to your bios
-Advanced > AMD CBS > NBIO Common Options
-search for DF C-States (Data Fabric C-States)
-disable it !
-put C-state ON

this thing manages the sleep mode of the memory controller and the internal communication bus (Infinity Fabric). It's the main culprit behind "cubic" aim because it delays the transit of mouse/network packets to RAM. By disabling only the C-State DF, your aim regains its full freedom, but your CPU cores can still boost cleanly without generating stutters, cause disabling C-state can cause stutter
anyway, for any one testing this , if it works idk write something , if you notice any thing just write it

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Assticker
Posts: 29
Joined: 20 Aug 2023, 12:19

Re: [MUST TRY] For Anyone having issues with mouse latency ( AM4)

Post by Assticker » 18 Jun 2026, 06:07

Also Bonus:
-If u have the option to toggle HPET OFF in the bios do it, windows 11 don't care about it cause it has a new clock system called tsc, a superior clocksource because it is built directly into your CPU, making it incredibly fast and efficient

juligannn
Posts: 2
Joined: 16 Jun 2026, 14:19

Re: [MUST TRY] For Anyone having issues with mouse latency ( AM4)

Post by juligannn » 18 Jun 2026, 17:38

Did it work for you, or is it just a suggestion?

SammYrai
Posts: 20
Joined: 28 Jul 2024, 15:30

Re: [MUST TRY] For Anyone having issues with mouse latency ( AM4)

Post by SammYrai » 19 Jun 2026, 03:39

please don't blindly disable HPET in BIOS your TSC needs a clock source and if you disable it in BIOS you will fallback to PMT most oft the time which you don't want unless you are playing some old emulated games (TSC won't sync against PMT)

I recommend rading this: https://sites.google.com/view/melodystw ... lztv9sgca5

MK92
Posts: 199
Joined: 06 Oct 2025, 15:11

Re: [MUST TRY] For Anyone having issues with mouse latency ( AM4)

Post by MK92 » 19 Jun 2026, 06:27

Lol another placebo bullcrap with those HPET timings without even knowing what this does because you read somewhere that this produced lag (yes it does - on Windows 7 or earlier, not 10/11), and all you would do by disabling all C states and power savings settings is massively increase your electricity bill and shorten the lifespan of your hardware, nothing else, so do not mess with stuff you don't understand

Flexoh17
Posts: 4
Joined: 19 Sep 2024, 12:13

Re: [MUST TRY] For Anyone having issues with mouse latency ( AM4)

Post by Flexoh17 » 24 Jun 2026, 03:00

MK92 wrote: ↑
19 Jun 2026, 06:27
Lol another placebo bullcrap with those HPET timings without even knowing what this does because you read somewhere that this produced lag (yes it does - on Windows 7 or earlier, not 10/11), and all you would do by disabling all C states and power savings settings is massively increase your electricity bill and shorten the lifespan of your hardware, nothing else, so do not mess with stuff you don't understand
Hey Mk92,

can we please get in touch regarding the Electrical stuff that you did ?
Im probably in the exact same position and have some questions.

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