Question 3600mhz RAM on the MSI B450 Tomahawk MAX

[SeriouslySteve]

I'm building a new rig and I bought a ryzen 7 3700x paired with 16gb of 3600mhz ram. However, I can't seem to decide which MB to choose. I feel like going with the MSI B450 Tomahawk MAX MB but I heard that 3600mhz memory wasn't achievable on B450 MBs (only goes up to 3400-ish mhz). Is 3600mhz compatible with the Tomahawk MAX? I saw that on the official spec sheet from MSI it seems to be saying it's compatible only with 3rd Gen Ryzen CPU's but I just need some clarifications.

It says exactly this:
"For AMD Ryzen Gen3 (R5/R7/R9)
2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133 by A-XMP OC mode

Right over it it indicates this: "1866/ 2133/ 2400/ 2667Mhz (by JEDEC)"
What does this mean?

What is A-XMP OC mode? (As you can most likely tell by now, I'm new to this whole pc world)

If it does work on this B450 MB how do they achieve it on this MB but not on the other B450's?

Here is the full spec webpage: https://www.msi.com/Motherboard/B450-TOMAHAWK-MAX/Specification

 

[boju]

Jedec is just an industry standard frequency set motherboards support without Bios alterations. XMP is a Bios alteration setting (completely safe) which when enabled, automatically adjusts motherboard memory settings ie voltage, timings, frequency, to operate ram at it's rated speed.

The Tomahawk is a respected motherboard.

Which B450 motherboards have you seen not able to support higher than standard Jedec ram of 2666?

 

[gskill support]

https://www.gskill.com/configurator

Use this to see which motherboards G.Skill has tested to be capable

Or if DDR4-3600 is your goal, you can look for a DDR4-3600 kit and check the QVL for a complete motherboard list:

https://www.gskill.com/qvl/165/326/1562839044/F4-3600C14D-16GTZN-Qvl

That is a special memory kit so it is important to select a motherboard on the G.Skill QVL as not any motherboard can support the rated specifications.

Here is a list of different DDR4-3600 16GB memory kits:

https://www.newegg.com/p/pl?d=gskill+3600+16gb&N=100007611 601275375 600528730 600546709 8000 600521526