• Happy holidays, folks! Thanks to each and every one of you for being part of the Tom's Hardware community!

Question XMP / EXPO Stupid question

PCintern

Commendable
Jan 3, 2021
10
0
1,510
This may be a stupid question but... Can 3600MHz ram be "XMP"'d to 3200MHz?
The Elaborate, I'm looking to buy 3600MHz ram but my motherboard can only take up to 2933MHz. It says it can take up to 3600Mhz O.C and that it supports XMP. How could I O.C a ram stick that is already running at a higher frequency ?

the Ram in question:
the Mobo in question:

Just saw that on the PDF it says "default 2400MHz", "XMP profile 1 3600", Is this the answer to my question? And is there a way to set it to 3200Mhz instead of 3600 for stability?
 
F62, Ryzen 5 5500.

Come to add that i just realised the ryzen 5500 cant take up to 3600mhz, so the same ram stick but 3200Mhz variant.
XMP is just set of instructions firmware-ed in RAM to help BIOS set everything properly to run at certain speed. Generally DDR4 base speed is considered 2133MHz and above is considered an overclock. Memory controller is built in CPU, also has some set maximum tested frequency but when you "Overclock" RAM you overclock that memory controller and in case of Ryzen that is allowed.
With that combo it should run stable at it's XMP @3600MHz as it's mot much over 3200MHz. If it doesn't or you don't wish to do that, you can also leave XMP but set just RAM/IMC frequency lower.

 
All ram will be able to boot at the default speed of 2133/2400.
To operate at faster speeds, up to the ram spec(3200 or3600) the ram is overclocked by bios settings.
The upper limit is determined by the motherboard and cpu.

No problem buying 3600 speed, but you may have to operate at a lesser speed.

Ryzen is picky about ram, it is best to buy a kit that is on the motherboard QVL list, or is explicitly supported by the ram vendor for your motherboard/cpu combo.

XMP is a set of settings determined by the ram maker that will let the ram work at advertised speeds.
Those settings are embedded in the ram itself. There may be multiple xmp settings in the ram.
XMP applies to Intel motherboards. For amd motherboards the term might be EXPO/DOCP
Many amd motherboards can extract XMP settings.
Or, you can specify them yourself via bios settings.