As some may know, for a while now, I've had problems with the cpu throttling back to 1404 under Prime95 testing, or h.265 encoding (heavy loads). The only way I was able to rectify this was either running the system with the water cooler outside the case, or lowering the voltage to 1.45V @ 5ghz. I previously figured this was because the VRMs were getting too hot with the LLC @ Ultra High, but when I noticed it throttling even after putting a fan blowing directly on the VRM heatsinks, I tried something else.

In the CPU settings page of the BIOS, I disabled APM and enabled High Performance Computing.

Voila. No more throttling. I cant believe this was the source of all my problems. Wish I hadnt just dropped $150 on a new Corsair 750D case in an effort to get better airflow over the Bitfenix Outlaw I had before. Although, the H110 I upgraded to wouldnt fit in that older case anyways, so thats nice.

Now, bear i mind you need to have APM enabled for Turbo to work, but since I'm running slightly oc'd @ 5ghz (all cores), I dont use TC anyways. And changing these two settings apparently does almost nothing to idle power draw, according to my UPS meter.