Hi everyone, I found the cause of system-wide desync. It's due to RAM instability!!! My system is a Ryzen 7800x3D, 6000 MHz, CL36 Expo. Why is this severe desync occurring? The problem is that with Expo enabled, your processor can't operate at a 1:1 ratio, and you get unstability at the macro level. And why is it necessary to use Jedec on the AM5? For DDR4, you need a stable 1:1:1 ratio, and not every processor supports XMP at 1:1:1.
Just so you know, I'm using the official Windows 11 25h2 ISO and installed the drivers via the Gigabyte utility.
I don't use any tweaks. I don't change power settings, timers, or anything.
I connect the mouse to the USB port connected to the processor, and the keyboard to the USB port directly connected to the chipset.
mobo - b650 aorus
I found the cause of desync.
Forum rules
IMPORTANT:
This subforum is for advanced users only. This separate area is for niche or unexpected lag issues such as electromagnetic interference (EMI, EMF, electrical, radiofrequency, etc). Interference of all kinds (wired, wireless, external, internal, environment, bad component) can cause error-correction (ECC) latencies like a bad modem connection, except internally in a circuit. ECC = retransmits = lag. Troubleshooting may require university degree. Your lag issue is likely not EMI.
🠚 You Must Read This First Before Submit Post or Submit Reply
IMPORTANT:
This subforum is for advanced users only. This separate area is for niche or unexpected lag issues such as electromagnetic interference (EMI, EMF, electrical, radiofrequency, etc). Interference of all kinds (wired, wireless, external, internal, environment, bad component) can cause error-correction (ECC) latencies like a bad modem connection, except internally in a circuit. ECC = retransmits = lag. Troubleshooting may require university degree. Your lag issue is likely not EMI.
🠚 You Must Read This First Before Submit Post or Submit Reply
I found the cause of desync.
Last edited by naporitan on 27 Jan 2026, 05:48, edited 2 times in total.
Re: I found the cause of desync.
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Last edited by naporitan on 27 Jan 2026, 09:18, edited 1 time in total.
Re: I found the cause of desync.
For example, on an LGA1700 with DDR5, you'll always get severe desync because the RAM runs in Gear2 mode! And you won't even be able to get Gear1 on a Jedec 4800! Therefore, you need to use DDR4 and make it stable in Gear1 mode!
Re: I found the cause of desync.
Now you know the true cause of system desynchronization!!! And I hope you'll share your experience 
Re: I found the cause of desync.
The problem is at the macro level and therefore you will not see errors in stress tests 
Re: I found the cause of desync.
3600cl14-14-14-34 Real 1N, still out of synch.
Re: I found the cause of desync.
default with stock voltage feels way better about desync, but still same issue.
it better, as u write before, set xmp frequency, voltage, but stay on auto timmings.
Re: I found the cause of desync.
I have Intel 12700k pcore 5.2 ecore standart , ddr4 4000 ( i dont remeber now timings ) but as far i remeber i set manual to gear 1 and its works and i didnt Has problem with desync ( or im blind)