Chapter 1 3
System Block Diagram
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
A A
B B
C C
D D
3VSUS
5V
Page :17
PWR_SRC
CRT
Primary DC system power supply
1.34V/0.94V switched power rail for CPU core voltage ( off in S3-S5 )
AC'97
GNT1
AGP 4X
PWR_DJ
AD20
5V
2_5VSUS
Page :9
LVDS
Page :08
NORTH BRIDGE
5VPCU
ICH4-M
+3V
VIN
DDR-SODIMM1
MAX1907
Panel Connector
(BGA 421)
VGA
5V always on power rail
MINI PCI IIIB
5VSUS
3V
5V
INTE,F
REQ1
Page :29
Wireless LAN
3V
CPU VR
CLOCKS
( BGA 732 )
3V
3VSUS
33MHz , 3.3V PCI
3V
ATA 66/100
RGB
Page :7
MAX9750CETI
1_5V
Page :25
DOTHAN
Page :7
3.3V switched power rail ( off in S3-S5 )
+5V
VHCORE
+5V
1.8V
DVD ROM Drive
2_5VSUS
Hard Disk Drive
SOUTH BRIDGE
Voltage Rails
Audio AMP
2_5V
(ICS950810)
DDR-SODIMM2
VGA_CORE
PAGE :30
( Micro-FCPGA 478 )
FSB=400MHZ
3.3V switched power rail ( off in S4-S5 )
DC/DC
Page :18
5V switched power rail ( off in S4-S5 )
5V switched power rail ( off in S3-S5 )
BATT CHARGER
Stereo
Speaker
Page :17
2.5VSUS 2.5V switched power rail for DDR Memory ( off in S4-S5 )
1.5V 1.5V power rail regulator from 2.5VSUS for AGP I/F ( off in S3-S5 )
VGA_CORE 1.2V switched power rail for VGA Core voltage ( off in S3-S5 )
+2.5V 2.5V switched power rail for VGA Frame Buffer ( off in S3-S5 )
1.2V power rail regulator from 2.5VSUS for CPU VID ( off in S3-S5 )VCC_VID
1.25V switched power rail for DDR Termination ( off in S3-S5 )+1.25
VCC_CORE
266MHZ
HCLK_CPU +- (CPU,CPU-NB)
HCLK_MCH +- (NB,NB-CPU)
CLK66_MCH (NB,NB-AGP)
CLK66_AGP (AGP,AGP-NB)
CLK66_ICH (SB,SB-NB)
PCLK_ICH (SB,SB-PCI DEVICE)
PCLK_SIO (SIO,SIO-SB)
PCLK_551 (EC,EC-SB)
PCLK_MINI (MINI,MINI-SB)
PCLK_LAN (LAN,LAN-SB)
PCLK_1394 (1394.1394-SB)
CLK48_USB(SB,SB-USB)
14M_SIO (SIO)
14M_ICH (SB,SB-SMBUS)
INTA
Page :9
RJ11
Intel 855GME
Page : 25
Page : 12, 13, 14
Page : 02, 03
Page : 04, 05, 06
KBC
Page :215VPCU
NS PC97551
DDR 200/266/333MHz
LPC BUS
Page : 09, 10, 11
LINEOUT
3VPCU 3V always on power rail
TFT LCD 14" (Normal, Ratio 16:9)
PS2
Page :24
PORT REPLICATOR
19V
10/100 LAN
RGB
LPC BUS
CARDBUS/1394
12VOUT
REQ2
AD22
TI4510
PIRQB#C#
GNT2
CARDBUS
Page :20
Page :22
USB 2.0
USB 2.0 Conn.
SUPER I/O
NS PC87383
PAGE :25,26,27,28
PAGE :15
PAGE :15
AGP-M10/11
LPTCOM1
LINEOUT
USB * 2
PS2
Page :18
Page :21
Flash
Page :21
Int.
Touch Pad
BIOS Keyboard
5VPCU 5V
Page :21
UMA
UMA
DOTTED LINE USE INTERNAL VGA(UMA)
DOTTED LINE USE INTERNAL VGA(UMA)
1394
CONN
TV
TV
REALTEK
ALC202
MDC
HEADPHONE
HEADPHONE
CONN
+5V
CONN
+3V
Page :16
Page :19, 20
Page : 19
X1
PRIMARY MASTER
SECONDARY MASTER
1.2
2.5V
Page :15
GNT0
LAN
REQ0
BCM5788M
10/100 LAN
INTD
RJ45
AD18
LANVCC
3V
USB ICSI 1213
3 IN 1
+5V
USB 2.0 Conn.
X1
USB * 2
DAUGHTER BOARD
SYS MIC
HEADPHONE
Page :16 Page :16
Page :17
Page :22
14M_ALC202
DEEFCLK
ATA 66/100
BLOCK DIAGRAM
1A
Custom
132Thursday, April 22, 2004
Size Document Number Rev
Date: Sheet of
Acer Inc.
