Hi,
I have a 7600 with a 200MHz processor, and a 7500 with a 132Mhz processor.
I ran Tattletech to check the L2 cache, and according to it there is
none in the
7500, despite there being a card in the cache slot! I checked in my 7600, and
Tattletech was happy that the L2 cache was there.
I thought faulty chip. Swapped them round and the 7500 still had none, and
the 7600 had now got some- so the chips were fine. (All according to
tattletech).
I changed the processor cards round, pressed the little reset switch,
etc. No joy.
The only differerence is that the 7500 (no cache machine in case
you've lost the plot!)
is running 8.6, and the 7600 (OK cache) is running 8.1.
I was thinking of getting a G3 card for the 7500, but I read
somewhere on XLR8yourmac
that the L2 cache on 7500 needs to remain in place for the G3 upgrade
to work. So now
I'm getting concerned.
If this means anything to anyone, when tattletech reports the good
cache on the 7600 it
calls it "L2 Cache type=unified". On the 7500 where it can find no
cache it calls it
"L2 Cache type=split".
On both machines tattletech claims L2 cache is active, but the
differnce is the 7600
has "L2 instruction cache size= 262,141 bytes " and the 7500 has 0 bytes.
I found this by selecting the CPU menu from the Tattletech list of hardware.
I'm using the latest version of tattletech. Maybe I should be using
another program to
check the l2 cache? Also the 7500 has a sticker on the MOBO saying
"TNT", the 7600
has a sticker saying "630-1973"
I'm in way over my head here! If anyone can make this darkness into
light I'll be
grateful! I'm really hoping my 7500 mobo isn't faulty.
Many thanks,
Davy
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