Programming instructions

Section 1 — Controls and Architecture
About Memory 17
Retaining Post
Retaining Post
Proper SIMM Installation
• Reinstall the trap door with the original screws. To verify that you’ve expanded your memory
correctly, after powering up the ASR-10, press Edit, then System•MIDI and scroll until the
display shows FREE SYSTEM BLOCKS= (expanded memory amount in blocks). See the
memory allocation chart (found earlier) for the proper number of blocks for each
configuration.
Warning
The ASR-10 was designed to use 1m x 8 or 4m x 8 non-parity SIMMs (not 1m x 9 or 4m x 9 parity
SIMMs). We do not recommend using parity SIMMs. These SIMMs may not operate properly,
and may cause damage to the ASR-10.
Important Information about SIMMs
• When adding memory, only install D-RAM SIMMs in the expansion slots. The ASR-10 will
not accept static RAM or ROMs.
• If SIMMs are installed in a less than optimal configuration, the display will read SIMMS IN
WRONG SOCKETS after booting. If this message is displayed, you should power off and
check the SIMMs configuration. Here is a example of what could be the most likely
installation mistake:
Two
1-MegaByte
SIMMs
(Standard Slots)
Two
4-MegaByte
SIMMs
(Expansion Slots)
Jumper is connected
to EXP (Expansion) pins
Incorrect Configuration
This configuration can cause continuous
noise and distortion on sounds or when
sampling/monitoring Audio Tracks.
• Any configuration which does not use two or four SIMMs will not work (the system will not
even boot up).
• Any combination of SIMMs in which there are two different kinds of SIMMs in the standard
slots and/or two different kinds of SIMMs in the expansion slots will not work properly. The
following diagram shows some examples of incorrect configurations:
1-MegaByte SIMM
4-MegaByte SIMM
1-MegaByte SIMM
4-MegaByte SIMM
1-MegaByte SIMM
4-MegaByte SIMM
1-MegaByte SIMM
4-MegaByte SIMM
1-MegaByte SIMM
4-MegaByte SIMM
1-MegaByte SIMM
4-MegaByte SIMM
Incorrect Configurations
Standard
Slots
Expansion
Slots
• These incorrect configurations of 1 and 4 MegaByte SIMMs could produce inaccurate