The answer is...it's functioning as designed. The 3.9GHz turbo clock is a maximum, and only applies when two conditions simultaneously exist: only 1 core is loaded and there is adequate thermal headroom. The 4930K's maximum turbo breakdown is as follows:
1 core active: 3.9GHz 2, 3, or 4 cores: 3.7GHz 5 or 6 cores: 3.6GHz -----Original Message----- From: Hardware [mailto:[email protected]] On Behalf Of Winterlight Sent: Wednesday, July 16, 2014 3:50 AM To: [email protected] Subject: [H] Greg>> six core turbo mode I have yet to over clock my six core Ivy Bridge 4930k. It is rated at 3.4 GHz with Turbo at 3.9 GHz. However, when encoding with 100% on all 12 cores I am running at 3.54GHz Turbo as stated in Task Manager... so why doesn't it rise to 3.9GHz in Turbo when it is running flat out like this. FYI There is plenty of quality power being fed into the CPU via the P9X79 WS motherboard and an abundance of large radiator push pull liquid cooling for the CPU.
