Specifications

AR-B1564 User¡¦s Guide
3-16
3.2.8 Memory Setting
There are two 32-bit memory banks on the AR-B1564 board. It can be one-side or double-side SIMM (Single-Line
Memory Modules) which is designed to accommodate 256KX36 bit to 16MX36-bit SIMMs. This provides the user
with up to 128MB of main memory. The 32-bit SIMM (without parity bit) also can be used on AR-B1564 board.
Please refer to the following table for details:
SIMM2 SIMM1 Total Memory
256KX32(X36) None 1MB
256KX32(X36) 256KX32(X36) 2MB
512KX32(X36) None 2MB
512KX32(X36) 512KX32(X36) 4MB
1MX32(X36) None 4MB
1MX32(X36) 1MX32(X36) 8MB
2MX32(X36) None 8MB
2MX32(X36) 2MX32(X36) 16MB
4MX32(X36) None 16MB
4MX32(X36) 4MX32(X36) 32MB
8MX32(X36) None 32MB
8MX32(X36) 8MX32(X36) 64MB
16MX32(X36) None 64MB
16MX32(X36) 16MX32(X36) 128MB
Table 3-12 DRAM Configuration
3.2.9 LED Header
(1) External Power LED & Keyboard Lock Header (J8)
5
Figure 3-23 J8: Power LED & Key Lock Header
(2) HDD LED Header (J11)
2 LED-
Figure 3-24 J11: HDD LED Header
(3) Watchdog LED Header (J9)
Figure 3-25 J9: Watchdog LED Header