CPUMSR

This tool can set the multiplier to any level the cpu is able to be set at... this app is free..maybe make a donation to the makers of it (not even sure you can)  when it fixes your problems ..i havnt needed to use it but I tested it on several  chips, 2 x Intel Pentium 4/Celeron ?? 2600 and 2800 ?? just not which was which Northwood, Prescott cores, one of them clocked to 3400 real speed lol and i must admit im still not an Intel fan gimme AMD anyday, so heres the AMDs:  AMD Duron 1800+ A socket, AMD Sempron 2800+ 754 socket  E6 version,AMD Athlon 64 3200+ Clawhammer 754 socket CG,AMD Athlon 64 3200+ Venice 754 socket E6, Athlon 64 x2 5600+ Windsor AM2 (940)socket F3, just to see if it would change the multiplier and only within normal available specs it showed and i knew to be right and altho it didnt recognize the AM2 cores, it asked to update or similar, it still set the multipliers on all, I only changed them down, it actualy didnt show any available above what they should have been, i then ran cpu-z to see what was what, then changed them back, I didnt try to overclock the cpu's at the new settings, one of the Intel chips actually had up to 26x so i set it there and its still running fine weeks later as a students comp at 3.4gig or 3400mhz real speed.

http://www.cpuheat.wz.cz/html/CPUMSR_main.htm

CPUMSR is a program that allows users to change selected values in processor Model Specific Registers (MSR). Model Specific Registers are processor Family / Type (see. Processor CPUID) specific registers (or micro-memory) that specifies processor behavior in certain situations. It allows to enable, disable or modify certain features that processors incorporate and that are, under normal circumstances, hidden from users.

Special thanks to Clive Turvey for writing a Windows driver. Without his work this program would not be possible. I would also like to thank my friend Miroslav Tvrz who helped me with programming.