https://en.wikipedia.org/wiki/Intel_Dynamic_Acceleration https://en.wikipedia.org/wiki/Intel_Dynamic_Acceleration introduced in ~2007 in Core 2 mobile CPUs (Pe

https://en.wikipedia.org/wiki/Intel_Dynamic_Acceleration https://en.wikipedia.org/wiki/Intel_Dynamic_Acceleration introduced in ~2007 in Core 2 mobile CPUs (Penryns I think). You can load Middleton modded bios into your oldshool Thinkpad R61/T61 and it will enable dual IDA[1] in top CPUs. http://forum.notebookreview.com/threads/t61-x61-sata-ii-1-5-gb-s-cap-willing-to-pay-for-a-solution.459591/page-8 http://forum.notebookreview.com/threads/t61-x61-sata-ii-1-5-... You can even load modded(by chinese) modded middleton bios, solder one wire and plop $8 T9550 CPU for 2.66GHz boosting to 2.8GHz. You could even use quads, but its beyond uneconomical with cpus being more than whole used thinkpad T420. http://forum.thinkpads.com/viewtopic.php?f=29&t=110620 http://forum.thinkpads.com/viewtopic.php?f=29&t=110620 This was Intels first steps and not a lot of OEMs enabled IDA. Turbo Boost was next, introduced in Nahalems. https://en.wikipedia.org/wiki/Intel_Turbo_Boost https://en.wikipedia.org/wiki/Intel_Turbo_Boost [1] dual IDA is a trick forcing IDA on both cores. Throttlestop utility is also able to turn it on.