# Kingston Fury Beast 8GB - RGB RAM intermittently loses control, showing "Failed To Write Byte" error in logs. **URL:** \ **Category:** Support\ **Tags:** ram, controllers, rgb, argb\ **Created:** [October 17, 2025, 5:13am UTC](https://forum.signalrgb.com/t/kingston-fury-beast-8gb-rgb-ram-intermittently-loses-control-showing-failed-to-write-byte-error-in-logs/8855 "2025-10-17T05:13:06Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Byroites](https://avatars.discourse-cdn.com/v4/letter/b/d2c977/32.png) [@Byroites](https://forum.signalrgb.com/u/Byroites)\ **Post date:** [October 17, 2025, 5:13am UTC](https://forum.signalrgb.com/t/kingston-fury-beast-8gb-rgb-ram-intermittently-loses-control-showing-failed-to-write-byte-error-in-logs/8855/1 "2025-10-17T05:13:06Z")
I have 4 Kingston Fury Beast RGB RAM sticks working with SignalRGB. After some time, one stick randomly loses the effect, often reverting to rainbow. The device log shows: Failed To Write Byte within 5 attempts! WriteByte(): Operation Failed. This indicates SignalRGB is losing SMBus control. I’ve uninstalled all other RGB software and run as Admin. Specs: RAM: Kingston Fury Beast 4x8GB DDR4 3600MHz Mobo: Gigabyte B560M AORUS PRO SignalRGB Version: 2.5.20-beta Please help!" ---
**Author:** ![SignalBadger](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.signalrgb.com/signalbadger/32/1654_2.png) [@SignalBadger](https://forum.signalrgb.com/u/SignalBadger)\ **Post date:** [October 17, 2025, 4:24pm UTC](https://forum.signalrgb.com/t/kingston-fury-beast-8gb-rgb-ram-intermittently-loses-control-showing-failed-to-write-byte-error-in-logs/8855/2 "2025-10-17T16:24:55Z")
Please report the bug using the bug icon in the app (upper-right corner) or through [this link](https://go.signalrgb.com/app/app/report-bug), and our support team will follow up. Happy to dive in further with the team!