Sonnet G4 and inconsistant MHz reporting

[Ron Farrer <rbf@farrer.net>]

I just put a Sonnet G4 450MHz/1M upgrade card in my PM 9600 and it 
works great. However MacOS 9 says it's 544MHz and /proc/cpuinfo says 
it's 400MHz. Anyone know what the deal with that is? 

For the curious, here is the contents of /proc/cpuinfo:
processor   : 0
cpu     : 7400 (G4)
clock       : 400MHz
revision    : 2.9
bogomips    : 898.34
zero pages  : total 0 (0Kb) current: 0 (0Kb) hits: 0/106 (0%)
machine     : Power Macintosh
motherboard : AAPL,9500 MacRISC
L2 cache    : 256K unified
memory      : 544MB
pmac-generation : OldWorld


TIA,
Ron
-- 
Email: <rbf@farrer.net> or <rbf@debian.org>