Safe way to update Keychron mechanical keyboard firmware?
https://lemmy.world/post/43919482
Safe way to update Keychron mechanical keyboard firmware? - Lemmy.World
As noted in the title, I am trying to figure out the safest way to update the
firmware on my recently purchased Keychron K1 QMK V6 keyboard. I was finally
able to get the web based Keychron Launcher app to talk to my KB after using
chmod to give the correct HIDRAW device read-write access but it looks like the
new firmware needs another utility to be installed and only the Windoze
directions are provided. From my own online research it looks like there is a
terminal-based method but it wasn’t really explained. I am not super concerned
about updating the firmware since the preloaded version works well enough for my
needs but I am still wondering if anyone knew of a tutorial on how to do this
without bricking my shiny new keyboard. I am using Fedora 43 Workstation if that
makes any difference. Thanks in advance for any tips or advice!
Puzzling issue with using DDR4 XMP profile
https://lemmy.world/post/42565754
Puzzling issue with using DDR4 XMP profile - Lemmy.World
I need some advice: I have a system that refuses to run without memory errors
and the resulting file corruption has forced me to start replacing components
until I get the advertised/expected performance. In this case, the DDR4-3600
(CL18) RAM I purchased cannot get through Memtest86 (Test7) without a ton of
address errors. Setup1 Ryzen 5 5600X (OEM tray CPU) MSI B550M PRO VC WIFI: BIOS
is dated 9/25/25 KLEVV DDR4-3600 (CL18) : QVL certification confirmed Using the
XMP profile 1 option (CL 18-20-20-40, 1.35VDC) After loading Fedora 43
Workstation and seeing some odd pauses I tried to install Steam and this is when
I realized I had some data corruption going via the Terminal stream. Immediately
researched and tried to dial down the speed to see if my CPU’s memory controller
just couldn’t handle the 3600 speed. Tried 3200 and adjusted the timings down to
a standard set that were more appropriate for that speed but then I just got
Memtest errors almost immediately (Test 2, 3, 4) so I manually aborted the test.
However, if I default back to the auto timings (DDR4-2667 @ 1.20VDC), the whole
system passes all of the tests and runs perfectly fine. As a result I performed
the following action: Replaced the Memory sticks with 2 of the same type. No
change in test results at either speed. Online research suggested the CPU/memory
controller was most likely the cause so I replaced the CPU with a newer (retail)
version and B2 stepping in the hopes it would perform better (see setup 2 below)
Setup2 Replaced the CPU with a Ryzen 5 5600XT (Retail Box CPU) MSI B550M PRO VC
WIFI (same Mobo) Used the replacement set of KLEVV DDR4-3600 (CL18) Using the
XMP profile 1 option (CL 18-20-20-40, 1.35VDC) Results were exactly the same
with Test 7 being the failure point using the XMP profile and only the default
settings (2667 M/T and auto timings) worked with no issues. I also tried other
DDR speeds like 3400, 3200, and 3000 with suggested relaxed timings appropriate
for each speed and a voltage boost to 1.35 VDC. Tweaking the RAM voltage up
didn’t seem to make any difference. Apologies for the long read so far but now I
am at a crossroads with this machine. I have tightened up the DRAM timings to
(CL14-16-16-32) at 2667M/T and 1.20VDC and it runs error free and passes Memtest
and stress-ng tests in the OS. I have also been able to get really decent gaming
performance and no more corrupted files or random crashing using Steam. So it
doesn’t seem to be the CPU or the RAM and the voltages seem OK from the PSU.
Should I tear the whole thing apart and replace the motherboard or just stick
with what I have since it works (albeit at a lower speed than advertised)? This
is one build that has really stumped me. Thanks for reading.
