RYZEN Ram speed check

[Russ holmes]

Hi. Total novice here and I need some advice on Ram speed please.
My set up is
RYZEN 3700x
2070 super
Asus Rog strix b450 gaming -F mobo
Corsair vengeance 3600mhz ram 2 X 8gb

I've checked the ram speed and it's 2666mhz
I'm guessing that's some default setting of the ram. ?

My question is should I try to change it ?
What improvements would i see ?
And what can go wrong if I mess it up ?

I've watched some vids using the dram calculater. So I should be able to do it. But looking at my mobo specs it says max speed is 3200mhz so I don't know why I've got 3600 fitted unless you can go over the max. What should I put as the speed 3200 or 3600??

Thanks.

 

[ANDARIAL]

Set the ram using XMP setting in bios
SHOULD work at right speed
BUT you may have to manually set the timings/volts if this does not post/work

 

[Russ holmes]

Set the ram using XMP setting in bios
SHOULD work at right speed
BUT you may have to manually set the timings/volts if this does not post/work

Morning , so go into bios and look for some thing called XMP and that will automatically set the correct Ram speed.

 

[ANDARIAL]

Yup set ram using XMP.Should be under ram setting in bios
Don`t have that motherboard so can`t say exactly where
But as i said it may not stick with the settings/post and you MAY have to set the timings manually
Might be worth holding on untill someone with that setup pops in here

 

[Hardstyle_Shuffler]

I believe all am4 boards that support 3000 series support 3200+ ddr4 speeds or a bios update will enable them down the road. Try for higher speeds with tight timings.

ex. 3200mhz cl12 =7.5 ns
3733mhz cl 14= 7.5 ns

but 3733mhz will have higher read speeds and lower latency given the ns from the formula are the same>. Formula to get time in ns is (CL/ ddr4 speed)*2000=time in ns (afaik).

I have a 3600 cpu on an ab350 pro 4 mobo, with my ram at 3733 14-14-16-14-28-42 at 1.515v (F4-3200C14D-16GTZKW which is samsung B-die). On the 3000 series to maximize performance make sure the (IF) Infinity fabric is at running at 1:1 to ram speed.

So try to get a stable 3600mhz OC or if your IF can handle 3733mhz (dram)/1867 (IF), try for that. But this varies depending on motherboard, motherboard bios version, dram chip, dram voltage. But for most people ram overclocks arent perceptible or even logged, so factor that in, when deciding how much time to put towards overclocking. I have spent too much time trying to find stable ram and cpu oc to get up to ~20% gains in some tests.

 

[eeii]

On my asus board it’s not called xmp it’s called DOCP. The same as above it should auto configure your ram timings if you enable it.