Tomahawk max defaulting to 2133, enabling xmp / changing timings doesn't boot.

[Defy Belief]

So newly built my rig, all works fine but the ram speed is way off.

It's 4400mhz gskill ram, when I've installed it all its stating that the dram frequency is 2133mhz.

If I enable an xmp profile set on the motherboard, it won't boot, just reverts back to 2133.

Also changing the timings to 4400,or even 3600, it still does the same thing.

It's a b450 tomahawk max, 4400mhz g skill, Ryzen 1600af processor.

Only ever had Intel before where I've just enabled xmp and its worked out of the box.

Any help is greatly appreciated!

 

[Webster]

Not 100% about the 1600AF, but the 1st and 2nd Gen Ryzen had pretty weak memory controllers, start at 2933 and work your way up.

 

[faceman123]

So newly built my rig, all works fine but the ram speed is way off.

It's 4400mhz gskill ram, when I've installed it all its stating that the dram frequency is 2133mhz.

If I enable an xmp profile set on the motherboard, it won't boot, just reverts back to 2133.

Also changing the timings to 4400,or even 3600, it still does the same thing.

It's a b450 tomahawk max, 4400mhz g skill, Ryzen 1600af processor.

Only ever had Intel before where I've just enabled xmp and its worked out of the box.

Any help is greatly appreciated!

those are high timings 4400 is ambitious even for ryzen 3000 series!, as above try 2933 and work up

 

[Defy Belief]

Will give it a go later, I will eventually just try and play with the timings and reduce the speed was never planning on 4400mhz but 2133mhz is not what I want

 

[Joxeon]

Will give it a go later, I will eventually just try and play with the timings and reduce the speed was never planning on 4400mhz but 2133mhz is not what I want

Make sure you also bump the dram volts to atleast 1.35

3600'is a bit ambitious so you might have to settle for around 3400.