Is this what is happening to you? http://i.imgur.com/7grWS.jpg the "proposed" multiplier never becoming "active"? This is really really frustrating me... Everything else I do applies just fine, changing vdroop, disabling or changing turbo boost settings etc. Everything but the core max multiplier, it will never actually work.
As soon as VCore is set to a fixed voltage, or I disable Turboboost, or Speedstep: Yes. The only way I get it to work really, is by using the VisualBios, put the slider at some level, and then change everything except for the things mentioned above.
I wonder if there's a reason for it, or if the problem is in the bios.
@Dan_Intel, I understand yes. Thanks for the response. I hope however, that you can look beyond the "overclocking" part of my question, and shine some light on why changing the multiplier doesn't work under described circumstances. I've read the legal information in the BIOS regarding overclocking and durability/warranty of my processor, but It says nothing about intel not supporting features with which the board is shipped/advertised, and which are available in their own products, and are potentially malfunctioning. With the "Optimized for K, Unlocked" shield logo, and the slider on the front page of the visual bios, I'd even say Intel is encouraging me to overclock ;-)
I've tested an underclock, with the same result. I could change my question to "Underclock not working" or "Multiplier change doesn't work" if that would help ?
Frankly, I hope this issue can be passed on to the Visual Bios team, so they can provide an update.
I have been having similar issues with this board and my 3570k, I tried using the purely turbo based OC, using the offset voltage. For some reason on this board, I have only been able to set the offset to increments of 20mV, which results in 1.298v at 4.2ghz in bios 60. Have you had any luck getting this board to OC, turbo or otherwise with something approaching sane vcore?