Question 3600Mhz kit defaulted to 3500

[nerunp]

Hey. When I built this pc with Ryzen 5600 and two sticks of 3600mhz the BIOS was recommending 3500mhz frequency. Why is that?

I just put 3600 without changing anything else

 

[Lutfij]

Make and model of your motherboard? BIOS version for your motherboard? Ram kit you're working with?

 

[nerunp]

Make and model of your motherboard? BIOS version for your motherboard? Ram kit you're working with?

Asus Prime A520M-E
Bios version was the stock one, idk, it was a few months ago
2 Kingston Fury Beast, 8GB, 3600Mhz, KF436C17BB/8

 

[Misgar]

It would be a really good idea if you installed the latest Asus BIOS as soon as possible. There have been a number of important changes recently, including the 1.30V limit and high speed memory compatibility improvments.

 

[nerunp]

It would be a really good idea if you installed the latest Asus BIOS as soon as possible. There have been a number of important changes recently, including the 1.30V limit and high speed memory compatibility improvments.

Ok I'll look into it. But should I just leave it at 3600mhz?

 

[Misgar]

Try 3600MT/s and boot from MemTest86+ on USB memory stick and run a complete test to see if the XMP overclock is stable.

 

[nerunp]

Try 3600MT/s and boot from MemTest86+ on USB memory stick and run a complete test to see if the XMP overclock is stable.

It is stable. All good then?

 

[Misgar]

If it survived several hours in MemTest with zero errors reported, run your normal applications and see if the computer works OK. You could try a few if your favourite stress tests, Prime95, Aida64, Cinebench, etc. It's up to you.

I had one machine that passed MemTest at XMP 3000MT/s but rebooted without warning when running Firefox and other normal programs. I loosened the CL (CAS) timings a couple of clock cycles and normality was restored.