17 Sep
2001
17 Sep
'01
11 a.m.
Cool idea -- flash on a DIMM. Has anyone ever heard of
such a beast?
The Apple Set Top box uses flash SIMM/DIMMs for it's boot
code. At least the one I have does. It's a 68pin SIMM with 8 Intel
E28F020 flash memory chips (256k x 8). 
17 Sep
17 Sep
11:31 a.m.
On Mon, 17 Sep 2001, Eric Dittman wrote:
Additionlly, several models of Macs have had either SIMM or DIMM
sockets for ROMs; in the case of the Mac IIci, it's unpopulated,
and my guess was there either for upgrades or for some special-
order boxes used by an unnamed customer... ditto the Quadra 605
(LCII format).
My Mac IIfx used a ROM SIMM. The IIfx was the last Mac I ever
bought, too, after the way Apple treated IIfx owners.
--
Eric Dittman
dittman(a)dittman.net
Check out the DEC Ethusiasts Club at http://www.dittman.net/
The SE/30 and the IIsi were also configured that way. I was told that
the intent was to permit patching the firmware, either in case of a bug
or upgrade.
- don
Cool idea --
flash on a DIMM. Has anyone ever heard of such a beast?
The Apple Set Top box uses flash SIMM/DIMMs for it's boot
code. At least the one I have does. It's a 68pin SIMM with 8 Intel
E28F020 flash memory chips (256k x 8). 
18 Sep
18 Sep
1:18 a.m.
My Mac IIfx used a ROM SIMM. The IIfx was the last
Mac I ever
bought, too, after the way Apple treated IIfx owners.
--
Eric Dittman
dittman(a)dittman.net
Check out the DEC Ethusiasts Club at http://www.dittman.net/
One hell of a Mac, though. I only wish the thing was documented so
I could get from Apple OS 7.x and/or A/UX to something like NetBSD on
it.
Bill
--
d|i|g|i|t|a|l had it THEN. Don't you wish you could still buy it now!
bpechter@shell.monmouth.com|pechter@pechter.dyndns.org
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