Dimm Configurations; System Board Connector Pin Signals; Monitor Port Signals; Serial Port Signals - IBM Aptiva Hardware Maintenance Manual

DIMM Configurations

The 2137 system board has two DIMM sockets. A maximum of 256KB
memory may be installed. The 2138 system board has three DIMM sockets. A
maximum of 384KB memory may be installed.
You can install 8MB, 16MB, 32MB, 64MB, or 128MB 3.3V DIMM at any
sockets and with any combinations.

System Board Connector Pin Signals

Monitor Port Signals

Pin Signal Name
1 Red Video
2 Green Video
3 Blue Video
4 Monitor ID Bit 2
5 Synch Ground
6 Red Ground
7 Green Ground
8 Blue Ground

Serial Port Signals

Pin Signal Name
1 Data Carrier Detect
2 Receive Data
3 Transmit Data
4 Data Terminal
Ready
5 Signal Ground
5-28
I/O Pin Signal Name
O 9 +5 V dc
O 10 Synch Ground
O 11 Monitor ID Bit 0
I 12 SDA
13 Horizontal Synch
14 Vertical Synch
15 SCL
I/O Pin Signal Name
I 6 Data Set Ready
I 7 Request To Send
O 8 Clear To Send
O 9 Ring Indicator
I/O
I
I
O
O
I
I/O
I
O
I
I