AB350 Cool & Quiet breaks overclock

mkmcgregor wrote: I stated 2.20, but I meant 2.22 beta is broken. You can overclock with either, but in 2.22 beta with Cool 'n' Quiet enabled, booting into windows will lock your clock to 1200MHz or around there regardless of the BIOS setting; actually as before task manager shows maximum CPU clock as what is set in BIOS, e.g. 3.8GHz, but actual running clock shown in the same panel maxes out in the lower 1100-1200MHz.

There might be a UEFI issue with that version, I don't have that board so I can't verify that either way.

What is your VCore mode set to, Auto? I have mine set to Offset, with the Offset value left on Auto. I have C n Q enabled, and C6 enabled. All cores at 38.25 to compensate for the BCLK droop. Using the AMD Ryzen Power Plan. The result:



Processor speed of 3.8GHz, which stays there due to the Ryzen Power Plan disabling core parking. If you check the VCore in the lower right side, you can see it ranges from 1.360V to 0.384V, so C n Q is active. We can also see the Core powers are varying quite a bit. Differences in CPU temperature also indicate it is working.

Edited by potyec - 12 Apr 2017 at 3:32pm

4.0+ will depend on the silicon lottery. Even if your running an 1800X, they don't guarantee 4.0 on all cores. 4.0 is turbo only on one core with XFR up to 4.1. So 4.0GHz on all cores is still up to silicon quality and alignment of the quark gnomes.

And to those here .......

Keep in mind, when you have all  the power saving features enabled _and_ run an OC that the boards VRM section takes a sever azz whooping in constantly flipping high and flipping low. That's just the nature of electronics and no getting around it.

The 4Ghz was not stable under stress test even with 1.45v and Im not gonna try higher .