MiTAC 7521 PLUS/N - Manual (Page 40)

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7521 7521 Plus / N N/B MAINTENANCE Plus / N N/B MAINTENANCE
1.3.5 COM port assignment
‰ COM1 : MODEM / RS-232 / Disable
‰ COM2 : IR / RS-232 / Disable
1.4 SMM and System BIOS
System Management Mode
7521 plus system has built in several power saving modes to prolong the battery usage for mobile purpose. User can enable
and configure different degrees of power management modes via ROM CMOS setup (booting by pressing F2 key). Following
are the descriptions of the SMM and power management modes supported.
Full On Mode
In this mode, each device is running with the maximal speed. CPU clock is up to its maximum.
Doze Mode
In this mode, CPU will be toggling between on & stop grant mode either. The technology is clock throttling. This can save
battery power without loosing much computing capability. The CPU power consumption and temperature is lowered in this
mode.
Standby
For more power saving, it turns off the peripheral component. In this mode, the following is the status of each device.
• CPU: Stop grant
• LCD: backlight off
• HDD: spin down
• FDD: standby
Suspend Mode
The most chipset of the system is entering power down mode for more power saving. In this mode, the following is the status
of each device.