Unlocking a week 39 or later AMD CPU (3)
Eversor 31 Dec 2003

One problem arises now, all desktop cpu have a default L6 maximum PowerNow! Multiplier of 11x, to change this L6 bridge cutting is required, as they are always all uncut.

Having the cpu oriented so that L6 is to your right the bridge config for multiplier is described here

So if you would want to open till 12x multiplier you see in table CCC:C, which means, looking at your cpu this way you should cut the forth bridge from left.

If you want access to 6-24x, simply cut all bridges, careful, with a bad cpu in K7S8X-E+ this would be very bad has with 100MHz bus the cpu would boot at already 2400MHz!!!

Careful, as setting a different maximum multiplier may boot your cpu at its maximum, so you should set your FSB a bit lower to test first. Some boards should boot at maximum, other boot at lowest, and some at default, 11x in 2500s, and the right multiplier has then to be set in windows.

Testing in K7S8X-E+ made the cpu to boot at its maximum multiplier, which I set at 12x.

Aopen AK79D-400 left it at 11x, though it detected the maximum PowerNow multiplier to be 12x, could set it though, motherboard isn't supporting P-state changing.

I hope this could be implemented by bios, as I think if manufacturers is aware of this, they may use this to trick the board to use all cpu as mobile in order to use PowerNow! Multipliers.

I'm currently testing a way to change multipliers so they can be set for, hopefully in all boards, to boot at selected multiplier.

More news here as they come...

Special thanks to Petr Koc for all his previous and continuous work, people from Fab51 and oc-prices pages, and Bluetooth for posting this.

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