Advantech AKMB-G41M, Руководство пользователя

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9 AKMB-G41M User Manual
Chapter 1
G
eneral
Information
1.8.2 CMOS clear (CMOS1)
The AKMB-G41M motherboard contains a jumper that can erase CMOS data and
reset the system BIOS information. Normally this jumper should be set with pins 1-2
closed. If you want to reset the CMOS data, set J1 to 2-3 closed for just a few sec-
onds, and then move the jumper back to 1-2 closed. This procedure will reset the
CMOS to its default setting.
1.8.3 Chassis instruction connector (JCASE1)
The AKMB-G41M motherboard contains a jumper that offers a chassis open sensor.
The buzzer on the motherboard beeps when the case is opened.
1.8.4 ATX/AT mode selector (PSON1)
1.9 System Memory
The AKMB-G41M has two sockets for 240-pin SODIMMx2.
All these sockets use 1.8 V unbuffered double data rate synchronous DRAMs (DDR3
SDRAM). They are available in capacities of 1024 MB. The sockets can be filled in
any combination with DIMMs of any size, giving a total memory size on 4 GB. AKMB-
G41M does NOT support ECC (error checking and correction).
1.10 Memory Installation Procedures
To install SODIMMs, first make sure the two handles of the SODIMM socket are in
the “open” position. i.e. The handles lean outward. Slowly slide the SODIMM module
along the plastic guides on both ends of the socket. Then press the SODIMM module
right down into the socket, until you hear a click. This is 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 in the socket.
Table 1.3: CMOS1
Function Jumper Setting
*Keep CMOS data
Clear CMOS data
*default setting
1-2 closed
2-3 closed
Table 1.4: ATX/AT mode selector (PSON1)
Function Jumper Setting
AT mode 2-3 closed
*ATX mode 1-2 closed
*default setting
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