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Motherboard in G3 Mechanical Off State
Motherboard in G3 Mechanical Off State
When the motherboard is not connected to
When the motherboard is not connected to
ATX power, there is only BATT(battery)
ATX power, there is only BATT(battery)
power on board.
power on board.
ACPI G3 mechanical state.
There are still certain circuits on the board
There are still certain circuits on the board
consuming the BATT power.
consuming the BATT power.
ICH
ASIC
other small discrete components.
ATX PWR
A
M
R
Socket 370
820
MCH
LPC
ICH
FWH
AC97
CODEC
IDE
FDD
DIMM
MTH
A
G
P
P
R
O
S
L
O
T
I
S
A
S
L
O
T
PCI-ISA
Bridge
ICH
P
C
I
S
L
O
T
S
AUX
ASUS
ASIC
BATT
Functions in G3 state being maintained
Functions in G3 state being maintained
on board by the BATT power are :
on board by the BATT power are :
CMOS SRAM (in ICH)
RTC ( Real Time Clock ) (in ICH)
AC Power Loss Restart (in ICH)
New CPU Detection (On board)
Chassis Intrusion (On board)
Output : +3V
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