Does it make sense at 4000MHz?

187

12-15-2020, 02:43 PM

I got a fresh RAM package today – 4000MHz CL18 for Ryzen. Checked my XMP settings and everything seems fine, but when I try to sync it with my Nb frequency in Ryzen Master, the memory clock shows the right speed yet the IF reads 1800. In the BIOS it says mem clock matches, but the CPU shows 998MHz. I’m a bit puzzled. I’ve adjusted the IF to 2000 to try and match, but it won’t boot. My motherboard specs are B550 AORUS Master, Ryzen 5 3600, 16GB DDR4, 4000MHz CL18, 3080 XCP3.

NylodnewgPlaZ

12-15-2020, 02:43 PM #1

fatdad98
Member

12-15-2020, 11:18 PM

The system specifications are ready.
What would you like to know next?

fatdad98

12-15-2020, 11:18 PM #2

The system specifications are ready.
What would you like to know next?

Apokalypsi
Junior Member

12-16-2020, 12:07 AM

Ryzen seldom reaches speeds beyond 1850-1900 on Infinity Fabric. It might be due to instability at that level.

Apokalypsi

12-16-2020, 12:07 AM #3

Ryzen seldom reaches speeds beyond 1850-1900 on Infinity Fabric. It might be due to instability at that level.

Derpziez
Junior Member

12-16-2020, 03:10 AM

Hi there! You're looking at the B550 Aorus master Ryzen 5 3600 with 16GB DDR4 memory at 4000MHz. It's a powerful setup for gaming and productivity.

Derpziez

12-16-2020, 03:10 AM #4

Hi there! You're looking at the B550 Aorus master Ryzen 5 3600 with 16GB DDR4 memory at 4000MHz. It's a powerful setup for gaming and productivity.

xXSuperNovaXx
Posting Freak

811

12-16-2020, 09:14 AM

Infinity fabric is being split in half due to issues like instability (many CPUs struggle with 2000 IFCk) or automatic adjustments (it reduces halving when speeds exceed 3600 MT/s).

xXSuperNovaXx

12-16-2020, 09:14 AM #5

Infinity fabric is being split in half due to issues like instability (many CPUs struggle with 2000 IFCk) or automatic adjustments (it reduces halving when speeds exceed 3600 MT/s).

TandemTea
Member

12-16-2020, 06:02 PM

It operates smoothly at 1900 MHz and displays correctly in CPU-Z without any issues. I wasn't sure if setting the frequency to 933 was typical for a 4000 MHz board. I'll stick with 1900 for now. Thanks for the details!

TandemTea

12-16-2020, 06:02 PM #6

EnchantedLilly
Junior Member

12-24-2020, 05:10 PM

i got you man thanks for the info. never tried to run a 4000mhz kit before. xmp loads fine but IF is tricky. thanks for the info tho. just gonna ruin it at 1900/1900 mainly got the kit so i have a high frequency kit for zen 3 when it comes out to play around with. i got a 3200 c16 kit as well thats 32gb

EnchantedLilly

12-24-2020, 05:10 PM #7

lb23kh
Member

141

12-24-2020, 10:36 PM

When it operates at 1900 RPM, aim to boost RAM performance to 3800 and adjust rim settings.

lb23kh

12-24-2020, 10:36 PM #8

When it operates at 1900 RPM, aim to boost RAM performance to 3800 and adjust rim settings.

baconman565
Member

207

12-25-2020, 12:35 PM

Sure thing, thanks! You're doing great with everything else except memory management. I'm here to help as you learn more. Keep going with your reading and timing practice. You've got this!

baconman565

12-25-2020, 12:35 PM #9

Sure thing, thanks! You're doing great with everything else except memory management. I'm here to help as you learn more. Keep going with your reading and timing practice. You've got this!

kykycake
Member

130

01-10-2021, 06:26 PM

#10

I've noticed experiments indicating success at 3933/4000mhz+. Your decision on whether to test matters. This resource proved helpful for me https://github.com/integralfx/MemTestHel...aster/DDR4 OC Guide.md#recommended

kykycake

01-10-2021, 06:26 PM #10