User Guide

Chapter 5 Troubleshooting Guidelines
340S8 Rev : A Page
19
2.1.22 Fan 1 (CN24) and Fan2 (CN25) Connector
2.2 Mechanical Buttons and Switch Definition
2.2.1 Power on/off button
1. If the system is in S0, S1 or S2 state, pressing the power button will transit the
system to S4 (Suspend to Disk) or S5 (Soft-off) state depending on the “Power
button function” setting in the BIOS Setup menu.
2. If the system is in S4 or S5 states, pressing the power button will awaken the system
into S0 states.
3. If the power button is pressed for more than four seconds, a power button over-ride
event is generated and the system will be put into S5 (Soft-off) state.
2.2.2 Cover (Lid) Switch
When LCD cover is closed, this Lid switch is triggered and an SMI/SCI is generated to
put the system into ‘Suspend to RAM’ or ‘Suspend to Disk’ mode depending on the
“Cover Switch” setting in the BIOS Setup menu.
2.2.3 Quick Start Button
When this button has been pressed, the system will launch either Microsoft Internet
Explorer, E-Support or E-mail/User Defines etc. 3 quick buttons demands.
2.3. Major Components and Connectors Location
+5V
CN25
FAN2 CONN
1
2
C385
0.1u
+5V
FANON#
Q36A
SI9953
1
2
7 8
C386
0.1u
CN24
FAN1 CONN
1
2
Q37
SI2301DS-SOT23
D
G
S
L89
BLM11P600S