1333 FSB Mod, Confirmed To Be Working By Me.

[__Miguel_]

You might want to either force the BIOS to 1333MHz with another CPU first, and then pop in the QX9770, OR find out exactly which is the correct version of this mod for underclocking.

This mod if for overclocking the default FSB from 1066MHz to 1333MHz, and only those CPUs will see the benefit. That's because the pins (pads, since we're talking socket 775 here...) that control the FSB have specific high and low states for each FSB. Using this mod on a 1600MHz FSB CPU will either do nothing at all or damage it (which is not a great idea since we're talking about a €1000 part...).

So, first get to know the state your FSB pads are in 1600MHz FSB mode. Then, check out how they should be for 1333MHz. Last, but not least, tape up any of the pads that needs to be set to low (0) if it's now high (1), and trace a link to a Vtt (if memory serves me right) pad nearby if it's low and needs to be high.

Cheers.

Miguel