Pentium IV mit 2,8 GHz verfügbar

Zitat

For the TurboPLL connection you must get external clock circuit and 14,3MHz crystal. This is best done by sawing up those apart from old broken motherboard. It is worthwhile to get such clock circuit which you can get datasheets from the internet. From the external clock circuit you must know the following connectors: 3,3V operating voltage, GND and 14,3MHz output. When above-mentioned factors have been sorted out, you must remove the 14,3MHz reference crystal from the Asus P4T533-C motherboard. It is worthwhile to connect base so you can easily change different kind of crystals. After this you have to disconnect resistors R143 and R144 near the clock circuit. The outer clock circuit feeds 14,3MHz reference frequency to the motherboard. Wires (in the picture red and yellow) are connecter into the disconnected resistors outer pins (when you look from the clock circuit).

Blue wires feed the operating voltage +3,3V and GND to the external clock circuit. Motherboards 14,3MHz crystal was replaced by 16,93MHz crystal. With fast calculations we get the motherboards smallest possible channel frequency of 118,39MHz and the largest possible channel frequency of 177,58MHz.

(16,93MHz / 14,3MHz) * 100MHz = 118,39MHz

With different kind of crystals you get different kind of channel speeds of course. For example 20MHz crystal the 150MHz channel speed is 209MHz.