[G4] Memory Cache Problem 400 Mhz Sawtooth

[CJ Scaminaci]

> Cache is fast memory that helps the processor retrieve instructions 
> faster and is usually on the processor module.

Kind of...but no...the Cache actually stores data from past operations, 
so if you launch Photoshop, some of the operations used to launch 
Photoshop are in the Cache. You quit and come back to it at another 
time you'll notice that it will launch faster, because part of the 
stuff it had to do was already there, no need to load it again. The L1 
cache is always on the processor, I can't remember an instance when it 
wouldn't be. L2 and L3's are on the processor card usually within a few 
inches of the processor itself.


> If you can find a machine which you can swap the processor card on you 
> can check it out that way, or it might be time for that new processor 
> upgrade you've been wanting.
> Mel
>
>

I don't think this is a Cache problem, can't be ruled out completely 
but highly unlikely. The memory cache and processor cache on most 
machines is completely different. If you are using Mac OS9 try using 
Tech Tool's RAM Test. If in OSX download a copy of my program MemTest 
which runs thorough memory testing on your machine. MemTest currently 
only runs command line, but we are near completion of adding the 
GUI.(http://friskythecat.tripod.com/)

CJ