User manual

AIMB-203 User Manual 12
1.8.10 Power switch/HDD LED/SMBus/Speaker pin header (JFP1)
1.9 System Memory
AIMB-203 has two sockets for a 204-pin DDR3 SODIMM. This socket uses a 1.5 V
unbuffered double data rate synchronous DRAM (DDR SDRAM). DRAM is available
in capacities of 1 GB, 2 GB, 4 GB and 8 GB. The sockets can be filled in any combi-
nation with SODIMMs of any size, giving a total memory size between 1 GB, 2 GB, 4
GB, 8 GB and 16 GB. AIMB-203 does NOT support ECC (error checking and correc-
tion).
1.10 Memory Installation Procedures
To install SODIMMs, slowly slide the SODIMM module along the plastic guides on
both ends of the socket. Then firmly but gently (avoid pushing down too hard) press
the SODIMM module well down into the socket, until you hear a click when the two
handles have automatically locked the memory module into the correct position of the
SODIMM socket. To remove the memory module, just push both handles outward,
and the memory module will be ejected by the mechanism.
Table 1.11: Watchdog timer output and OBS beep (JWDT1+JOBS1)
Function Setting
JFP1(7-10) (Default)
Pin Signal Pin Signal
1 +5V 2 HDD LED+
3 Power Button+ 4 NC
5 HDD LED- 6 Power Button-
7 SPK_P3 8 SMB_DATA
9 System Reset+ 10 SPK_P4
11 SMB_CLK 12 System Reset-