disabling the OC on my CPU also disables a RAM channel?

[RollinLower]

alright, so there is something weird going on with my CPU.

 

first of all, relevant system specs:

 

AMD Threadripper 1950X @3.75GH 1.175V

G-Skill Trident Z Royal 3200Mhz 32GB in 4x8

Asrock X399M Taichi

 

the CPU is watercooled in the same loop as two RTX 2080's, but temps are fine. I also lapped the Threadripper, but it worked fine ever since, and shouldn't be the cause of the problems i now face.(i think?)

 

so with the F@H event coming up, i want my system to be as stable as possible for 24/7 operation.

(btw if you havn't already, sign up for the LTT Folding month now! we got prizes!)

this means that i want to diable the CPU overclock, so i can push the 2080's in the same loop a little higher. here is where the weird stuff happens tough. whenever i set the core multiplier back to 'auto', the system bootloops for a few minutes before booting into windows, but with only 3 memory channels working. i cannot for the life of me get channel C1 back online on stock clocks! it's only when i apply the overclock again that the memory channel comes back to life.

 

how could this happen?

[Jurrunio]

A CPU that refuses to go slow properly when asked to, must be an impulsive one.

 

did you disable overclock by clearing CMOS?

[RollinLower]

3 minutes ago, Jurrunio said:

A CPU that refuses to go slow properly when asked to, must be an impulsive one.

 

did you disable overclock by clearing CMOS?

yep, a few times in BIOS but most recently by taking out the battery.

 

sadly didn;t help, double sad because i had fine-tuned fan profiles which are now gone.

[Jurrunio]

53 minutes ago, RollinLower said:

yep, a few times in BIOS but most recently by taking out the battery.

 

sadly didn;t help, double sad because i had fine-tuned fan profiles which are now gone.

Then just manually type in the default multipliers ? I hope you still remember those