ETX-EV133
User’s Manual
Page 36
ACPI Suspend Type
S1 (POS)
Power On suspend
All devices are powered up except for the clock synthesizer. The Host and PCI clocks are inac-
tive and PIIX4 provides control signals and 32-kHz Suspend Clock (SUSCLK) to allow for DRAM
refresh and to turn off the clock synthesizer. The only power consumed in the system is due to
DRAM Refresh and leakage current of the powered devices. When the system resumes from
POS, PIIX4 can optionally resume without resetting the system, can reset the processor only, or
can reset the entire system. When no reset is performed, PIIX4 only needs to wait for the clock
synthesizer and processor PLLs to lock before the system is resumed. This takes typically 20 ms.
S3 (STR) Suspend To RAM
Power is removed from most of the system components during STR, except the DRAM. Power is
supplied to Suspend Refresh logic in the Host Controller, and RTC and Suspend Well logic in
PIIX4. PIIX4 provides control signals and 32-kHz Suspend Clock (SUSCLK) to allow for DRAM
refresh and to turn off the clock synthesizer and other power planes.
PM Control By APM
When enabled, an Advanced power Management device will be activated to enhance the Max.
Power Saving mode and stop the CPU internal clock. If the Max. Power Saving is not enabled,
this will be preset to No.
Video Off Option
Controls what causes the display to be switched off
Suspend -> Off Always On All Mode -> Off
Video Off Method
This determines the manner in which the monitor is blanked.
V/H SYNC+Blank
cause the system to turn off the vertical and horizontal synchronization
signals and writes blanks to the screen.
Blank Screen This option only writes blanks to the screen.
DPMSInitial display power management signaling.
Modem Use IRQ
Name the interrupt request (IRQ) assigned to the modem (if any) on your system. Activity of the
selected IRQ always awakens the system.
Soft-Off By PWRBTN
