Question CL15 RAM runs on CL16

[AdamL1337]

Hello. As you can see on the screen below my ram timings are
16-17-17-35 although I set the XMP profile in BIOS with the
15-17-17-35 timings.
I also noticed that if I change CAS latency in BIOS to 15, it jumps to 16, if I set 17, jumps to 18 etc. but if I set 16 or 18, the value doesn't change.
My ram is Corsair Vengeance LPX 2X8GB 3000 MHz CL15 and it is compatible with my ROG B450-F GAMING.
My BIOS version is 2301.
What should I do? Is it a BIOS problem?
Thanks for your help

https://imgur.com/WLXO2Nk

 

[boju]

Have seen people report Ryzen doesn't support odd timings for some reason. Digging in a bit there may be a setting (gear down mode) in the bios.

Have a look here https://forums.overclockers.co.uk/t...-ram-to-cl15-but-can-set-it-to-cl14.18845915/

 

[AdamL1337]

Have seen people report Ryzen doesn't support odd timings for some reason. Digging in a bit there may be a setting (gear down mode) in the bios.

Have a look here https://forums.overclockers.co.uk/t...-ram-to-cl15-but-can-set-it-to-cl14.18845915/

Thanks, I will check that as soon as I get home.

 

[AdamL1337]

Have seen people report Ryzen doesn't support odd timings for some reason. Digging in a bit there may be a setting (gear down mode) in the bios.

Have a look here https://forums.overclockers.co.uk/t...-ram-to-cl15-but-can-set-it-to-cl14.18845915/

I disabled gear down mode and I have to take out the battery from motherboard because I can not event enter the BIOS.
Thanks for help but it will have to work at CL16.

 

[boju]

Aahh right ok good to know sorry that happened. Yeah cl16 is fine, won't see any different anyway.

 

[AdamL1337]

Aahh right ok good to know sorry that happened. Yeah cl16 is fine, won't see any different anyway.

No problem. I removed the battery and it is all good.
I will play with 16-17-17-35 timings.