Originally posted by: DYOUNG@USC-ISID.ARPA (C. David Young)
Article-I.D.: ucbvax.8603142258.AA25985
Posted: Fri Mar 14 17:48:25 1986
Date-Received: Sat, 15-Mar-86 21:26:14 EST
References:
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 12
The 400/800 OS will always do a coldstart if you reset the CPU. This is
done by adding a 47 ohm resistor in series with a momentary switch between
the two pads near R156 on the 800 or R183 on the 400. To do the coldstart
you close the coldstart switch and then press RESET. This will cause the
CPU to do what it normally does on powerup, including clearing all of system
RAM. However, the CPU does not clear the extra RAM which may be present
(i.e., anything beyond the 64K that it knows about. This is a great advantage
if you have a ramdisk since this allows you to reboot the system without
losing its contents. Also it is better for your computer than cycling power.
David Young
-------