thus Riccardo Mottola spake:
> ctribo@dtcc.edu wrote:
> 
>>If the kernel doesn't report it, it's not enabled. You should try to get an
>>L2CR entry in your kernel config to enable the G4s L2 cache, or try Tim
>>Kelly's boot loader that enables the caches before loading the kernel.
>>
>>I don't think any CPU is going to do very well with only L1 cache and a slow
>>data bus(50 MHz?)
>>
>>http://mail-index.netbsd.org/port-macppc/2001/01/05/0007.html
>>
> 
> 
> hey. this was indeed it!
> For therecord... I opened the cpu card, since no code on it would have
> me led to its speed.
> 
> It is almost for sure a newertech maxpower g4 400/200. The cpu itself is
> marked as 400Mhz. I almost had bet this thing was a 450. Maybe default
> overclocked? :)
> I have pictures of this if it is interest of someonee. The DT351 card
> seems to have been used by a lot of upgrades. I made pictures of the
> general layout and one where the cache chips are well visible. My 7400
> is "motorola" :-)

IBM never built G4s -- they did (and do) fast G3s, like the 750FX,
750CX, and 750CXe :)

recent G4s are labeled 'FreeScale' -- MOT spun them off.

> cpu0 at mainbus0: 7400 (Revision 2.7), ID 0 (primary)
> cpu0: HID0 8294c0a4<EMCP,ECLK,DOZE,DPM,EIEC,ICE,DCE,SGE,BTIC,BHT>
> cpu0: 409.10 MHz, no-parity 1MB WB L2 cache (PB SRAM) at 2:1 ratio
> 
> 
> I'll stress the box a bit now and let's see how it does; Seems to work
> _much_ better now, I run the same small benches and the difference.. is
> noticeable. Now it beats my old cpu consistently.

grats! :)

timo