The HT fluctuations seem common to the asus boards.
I had the M4a89GTD/PRo-USB3 - At first it NEVER used to fluctuate the HT - upon installing the BIOS's from around April onwards they fluctuate roughly 1 - 2 Mhz - Now that may not seem much but times that by 20 and you can see how easily the CPU jumps around from 4013Mhz to 4045Mhz - thats make or break a 4ghz clock.
I decided to give the Crosshair IV a go - thinking that would be better but WAHAY! - That was even worse back in August - tried the standard bios (original one) and the latest one available from here - no joy - But aswell as HT fluctuating (more so than my M4A89) the voltage also used to fluctuate a heck of allot! - This was definately due to turbo - as soon as I switched that off the crosshair IV volts behaved themselves.
In terms of Trying LLC and other settings on manual - NONE of these make a difference. Asus really need to get they're act in gear and sort this out as it can render overclocks unstable with what seems such a minor HT fluctuation (when using high multipliers on CPU)
Anyway - it looks like my M4A89GTD has crapped out on me - Cap busted and in turn caused my PSU to overheat and burn out the connectors - nice one asus! - looks like i'll be seeking compensation from either the PSU manufacturer (XFX) or Asus. I've just bought the crosshair IV (again!) in the hope Asus will sort out they're bios - I've always been an MSI fan - but have given Asus another chance for now.........
Please don't let us down Asus - THIS IS A BIOS ISSUE common to ALL Asus boards- Please address asap -and also decrease boot time for these boards PLEASE!
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