BrianW:
All the Tbred Bs are unlocked, but motherboards differ widely in how they handle the 5th bit (the 5th L3 bridge). Some won't boot with it open, some won't let you adjust multipliers if it is open but give you 5-12.5x if it is closed, and a few will set that bridge "LO" or "HI" in the bios and give you full multiplier range 5-24. People are having great luck with the dipswitches on the A7V/A7V-133 series, but ironically most Kt266A and KT333 boards are less multiplier adjust friendly. The problem for my Epox 8K3A is either in the northbridge or in the Bios multiplier tables, but Epox is pushing the 8K9A2 and the 8RDA as having multiplier control rather than providing a bios fix for the older board.
If your board doesnt let you unlock higher multipliers you can always solder on dips or jumpers to do it manually...
|