Originally posted by: Slaimus
The 1.5s which use a 400Mhz bus do not upgrade as well as the ones that use 533Mhz bus, but this would be a very good upgrade for those on a Celeron M, since the Celerons do not have Speedstep.
Actually the 400MHz (4x 100MHz FSB) units are the ones to get for overclocking.
Many with a 533Mhz (4x 133Mhz FSB) CPU replace it with the 400MHz version, and BAM, instant upgrade.
1.5GHz = 100x15.
When used in a system that had 533MHz CPU it becomes:
2GHz = 133x15. $45 for a 2GHz P-M upgrade? YES!
The sweet CPU most crave is the 1.6GHz 400MHz unit @ 2100MHz.
Some have even got the 1.8GHz to work @ 2.4Ghz, which becomes the fastest CPU in town, even faster than best A64 Desktops!
Sadly, my laptop uses 400MHz bus, with 1.8GHz (18x100).
Was thinking of getting a 533MHz system and swapping CPU's.
However, if the 533MHz system came with a 1.6GHz, it would have ran at 12x133.
Installed in my old system would have dropped it down to a 1.2GHz.
This $45 CPU would have been perfect solution. Use it in old system and move 1.8GHz to new system at 2.4GHz (or less as needed).