Schematic Diagrams
ICH8 PCI, DMI, CPU, IRQ
DMI_RX[0..3] | DMI_RX[0..3] 6 | 3VS | 3VS | 2,6,8,9,11..15,17..22,24..28,31,33 | |
DMI_RX#[0..3] |
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DMI_RX#[0..3] 6 | 3V | 3V | 4,6,11..13,21,25..28,30..33 | ||
DMI_TX[0..3] | |||||
DMI_TX[0..3] 6 |
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DMI_TX#[0..3] |
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DMI_TX#[0..3] 6 | 1.5VS | 1.5VS 4,9,11..13,25,28,33 | |||
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| U9A | 5VS | 5VS | 6,12..14,18,19,22,24,26..28,33 | |
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3VS |
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| RP20 |
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| RP27 |
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| 1 | 8 | INT#D | |
1 | 8 | PREQ#0 | 2 | 7 | INT#B |
2 | 7 | PREQ#3 | 3 | 6 | INT#C |
3 | 6 | DEVSEL# | 4 | 5 | INT#A |
4 | 5 | PLOCK# |
| 8P4R_8.2K_04 | |
20,28 | AD[0..31] |
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| AD0 | E18 | AD0 | ||
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| AD1 | A16 | |||||
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| AD2 | A14 | AD1 | ||
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| AD2 | ||||
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| AD3 | A17 | |||
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| AD3 | ||||
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| AD4 | B13 | |||
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| AD5 | F18 | AD4 | ||
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| AD5 | ||||
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| AD6 | E17 | |||
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| AD7 | C17 | AD6 | ||
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| AD7 | ||||
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| AD8 | A13 | |||
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| AD8 | ||||
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| AD9 | C14 | |||
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| AD9 | ||||
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| AD10 | E14 | |||
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| AD10 | ||||
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| AD11 | C13 | |||
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| AD12 | E15 | AD11 | ||
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| AD12 | ||||
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| AD13 | F16 | |||
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| AD13 | ||||
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| AD14 | A11 | |||
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| AD14 | ||||
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| AD15 | D10 | |||
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| AD16 |
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| AD15 | |
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| C11 | ||||
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| AD17 | E13 | AD16 | ||
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| AD17 | ||||
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| AD18 | E12 | |||
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| AD19 | D13 | AD18 | ||
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| AD19 | ||||
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| AD20 | F14 | |||
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| AD21 |
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| AD20 | |
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| E11 | ||||
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| AD22 | D8 | AD21 | ||
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| AD23 |
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| AD22 | |
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| D7 | ||||
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| AD24 | C7 | AD23 | ||
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| AD24 | ||||
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| AD25 | F13 | |||
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| AD25 | ||||
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| AD26 | B7 | |||
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| AD27 | C6 | AD26 | ||
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| AD27 | ||||
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| AD28 | B5 | |||
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| AD29 | F12 | AD28 | ||
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| AD30 |
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| AD29 | |
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| F8 | ||||
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| AD30 | ||||
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| AD31 | E7 | |||
20,28 | C/BE#[0..3] |
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| C/BE#0 | G16 | AD31 | ||
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| C/BE0# | ||||||
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| C/BE#1 |
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A10 | |||||||||
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| C/BE1# | |
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| C/BE#2 | C12 | |||
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| C/BE2# | ||||
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| C/BE#3 | A12 | |||
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PCI INTERFACEICH
8
CPU
EXPRESS
A20M# 
CPUSLP# 
FERR# 
IGNNE# 
INIT# 
INIT3_3V# 
INTR
NMI
SMI# 
STPCLK# 
RCIN# 
A20GATE
THRMTRIP# 
PECI
PLTRST# 
PERN_1 
PERP_1
PETN_1 
PETP_1
PERN_2 
PERP_2
PETN_2 
PETP_2
PERN_3 
PERP_3
PETN_3 
PETP_3
PERN_4 
PERP_4
PETN_4 
PETP_4
PERN_5 
PERP_5
PETN_5 
PETP_5
AD23
AC24
AB22
AC22
AB19
AC12
AH28
AC23
AB20
AB23
AF10
AG10
AG28
AF26
AF23
N25
N26
M28
M27
L25
L26
K28
K27
J26
J25
H28
H27
G26
G25
F28
F27
E26
E25
D28
D27
CPU_A20M# |
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TESTHI_13 |
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CPU_FERR# |
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| CPU_FERR# 4 |
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CPU_IGNNE# |
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CPU_INIT# |
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| CPU_INIT# 3 |
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FWH_INIT# | T |
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CPU_INTR |
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| CPU_INTR | 4 |
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CPU_NMI |
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| CPU_NMI | 4 |
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CPU_SMI# |
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| CPU_SMI# 4 |
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R537 | 0_04 |
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KB_RC_IN# |
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| CPU_STPCLK# 4 |
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A20GATE |
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R295 | 0_04 |
| CPU_THERMTRIP# 4 | ||||||
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PECI |
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| PECI 3 |
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PLTRST# |
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| PLTRST# | 6,15,24,28 |
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| PE1_RX_NEW# |
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| PE1_RX_NEW# 28 | ||||
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| PE1_RX_NEW |
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| PE1_TX_NEW# |
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| PE1_RX_NEW 28 | ||||
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| PE1_TX_NEW# 28 | |||||
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| PE1_TX_NEW 28 | |||||
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| PE2_RX_GLAN# |
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| PE2_RX_GLAN# 21 | ||
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| PE2_RX_GLAN |
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C313 | .1U_04PE2_TX_GLAN# |
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| PE2_RX_GLAN 21 | |||||
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| PE2_TX_GLAN# 21 |
C314 | .1U_04PE2_TX_GLAN |
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| PE3_RX_WAN# |
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| PE3_RX_WAN# 25 | ||
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| PE3_RX_WAN |
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| PE3_TX_WAN# |
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| PE3_RX_WAN 25 | |
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| PE3_TX_WAN |
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| PE3_TX_WAN# 25 | |
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| PE4_RX_JMB368# | PE3_TX_WAN 25 | |||
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| PE4_RX_JMB368# 24 | ||||
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| PE4_RX_JMB368 |
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C309 | .1U_04PE4_TX_JMB368# |
| PE4_RX_JMB368 24 | ||||||
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| PE4_TX_JMB368# 24 |
C310 | .1U_04PE4_TX_JMB368 |
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| PE5_RX_UWB# |
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| PE5_RX_UWB# 13 | ||
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| PE5_RX_UWB |
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| PE5_TX_UWB# |
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| PE5_RX_UWB 13 | |
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| PE5_TX_UWB |
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| PE5_TX_UWB# 13 | |
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| PE5_TX_UWB 13 |
| 8P4R_2.7K_04 |
| RP25 | INT#G | |
| RP30 | IRDY # | 8 | 1 | |
1 | 8 | 7 | 2 | INT#H | |
2 | 7 | TRDY # | 6 | 3 | INT#F |
3 | 6 | PERR# | 5 | 4 | INT#E |
45 SERR#
| 8P4R_2.7K_04 | 8P4R_8.2K_04 |
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| RP21 | PREQ#2 | 3VS |
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1 | 8 | RP23 |
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2 | 7 | PREQ#1 |
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3 | 6 | STOP# | 1 | 8 |
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4 | 5 | FRAME# | 2 | 7 | PGNT#3 |
| 8P4R_2.7K_04 | 3 | 6 | PGNT#2 | |
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| 4 | 5 | PGNT#1 |
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| 8P4R_1K_04(R) | |
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| PGNT#0 | R748 | 1K_04 |
11 A20GATE | A20GATE R571 |
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| 0_04 | GA20 | GA20 23 | ||||||||||
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KB_RC_IN# R331 |
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| 0_04 KBC_RST# | |||||||||||||
11 KB_RC_IN# |
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| KBC_RST# 23 | ||||||||||||||
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| 3VS |
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| C325 |
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| .1U | _X7R_04 |
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| PLTRST# |
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| 5 | U8 |
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| 4 BUF_PLT_RST# |
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| BUF_PLT_RST# 13,21,24,25,28 | |||||
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| 3 | 74AHC1G08GW |
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Sheet 10 of 40 ICH8 PCI, DMI,
CPU, IRQ
B.Schematic
20,28 DEVSEL# |
| DEVSEL# | B12 | DEVSEL# | PART 1/3 | PCI | PERN_6/GLAN_RXN | ||
| PAR | D9 | |||||||
20,28 | STOP# |
| STOP# |
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20,28 FRAME# |
| FRAME# | E16 | FRAME# |
| PERP_6/GLAN_RXP | |||
20,28 IRDY# |
| IRDY # | B6 | IRDY# |
| PETN_6/GLAN_TXN | |||
| TRDY # | A7 |
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20,28 | TRDY # |
| STOP# | D15 | TRDY# |
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| PETP_6/GLAN_TXP | |
20,28 PAR |
| PLOCK# | D11 | PAR |
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| DMI_0RXN | ||
20,28 | SERR# |
| SERR# | E6 | PLOCK# |
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| SERR# |
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| DMI_0RXP | |||||
20,28 | PERR# |
| PERR# | C9 | PERR# |
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| DMI_0TXN | |
| PME# | D3 |
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20,23,28 | PME# |
| PME# |
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| DMI_0TXP | |||
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2 | PCICLK |
| PCICLK | B10 | PCICLK |
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| DMI_1RXN | |
| PCIRST# | E3 |
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11,20,23,28 PCIRST# |
| PCIRST# |
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| DMI_1RXP | ||||
20,28 PREQ#[0..3] |
| PREQ#0 | E8 |
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| MEDIA | DMI_1TXN | ||
| PREQ#1 | C16 | REQ0# |
| DMI_1TXP | ||||
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| REQ1#/GPIO50 |
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| PREQ#2 | B16 |
| DMI_2RXN | |||
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| PREQ#3 | A9 | REQ2#/GPIO52 |
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| REQ3#/GPIO54 |
| DMI_2RXP | ||||
20,28 PGNT#[0..3] |
| PGNT#0 | A4 |
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| DMI_2TXN | |||
| PGNT#1 | C15 | GNT0# |
| DMI_2TXP | ||||
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| GNT1#/GPIO51 |
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| PGNT#2 | D17 |
| DMI_3RXN | |||
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| GNT2#/GPIO53 |
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| PGNT#3 | B9 | GNT3#/GPIO55 |
| DIRECT | DMI_3RXP | |
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| INTERRUPT | DMI_3TXN | ||
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| LAN_RST# | |||
20 | INT#A |
| INT#A | C4 | PIRQA# |
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| DMI_3TXP | |
20 | INT#B |
| INT#B | C5 | PIRQB# |
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| DMI_CLKN | |
20 | INT#C |
| INT#C | A3 | PIRQC# |
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| DMI_CLKP | |
20 | INT#D |
| INT#D | A8 | PIRQD# |
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28 | INT#E |
| INT#E | D5 | PIRQE#/GPIO2 |
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| DMI_ZCOMP | |
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| INT#F | F10 | PIRQF#/GPIO3 |
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| DMI_IRCOMP | |
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| INT#G | G11 |
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| INT#H | F9 | PIRQG#/GPIO4 |
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| PIRQH#/GPIO5 |
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| GLAN_CLK | ||
11,20,23,25 | SERIRQ |
| SERIRQ | AG9 | SERIRQ |
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| LAN_RSTSYNC | ||||||
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SPI_MOSI R548 | 15_04 | D21 |
| SPI | LAN | LAN_RXD0 | |||
SPI_MOSI | LAN_RXD1 | ||||||||
SPI_MISO |
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SPI_CS0# R549 | 15_04 | C21 | SPI_MISO | LAN_RXD2 | |||||
SPI_CLK | R542 | 15_04 | A19 | SPI_CS0# |
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SPI_CLK | LAN_TXD0 | ||||||||
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| A18 | |||||
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| NEAR | SPI_CS1# | LAN_TXD1 | ||||
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| LAN_TXD2 | ||
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| ICH8 |
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A5
A24
VSS_001
A28
VSS_002
B2
VSS_003
B8
VSS_004
B11
VSS_005
B14
VSS_006
B17
VSS_007
B20
VSS_008
B24
VSS_009
C22
VSS_010
C27
VSS_011
C28
VSS_012
D2
VSS_013
D4
VSS_014
D6
VSS_015
D12
VSS_016
D16
VSS_017
D19
VSS_018
D22
VSS_019
D25
VSS_020
D26
VSS_021
E9
VSS_022
E21
VSS_023
E24
VSS_024
E27
VSS_025
E28
VSS_026
F2
VSS_027
F7
VSS_028
F15
VSS_029
F22
VSS_030
F24
VSS_031
G6
G4 VSS_036
G1 VSS_035
F26 VSS_034
F25 VSS_033
VSS_032
G10
VSS_037
G13
VSS_038
G18 VSS_040
VSS_039
C26
C25
B28
B27
T T T T
| 3VS |
POWER OK | R734 |
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U26
U25
T28
T27
W26
W25
V28
V27
AA25
AA24
Y28
Y27
AC26
AC25
AB28
AB27
R25
R24
DMI_TX#0
DMI_TX0
DMI_RX#0
DMI_RX0
DMI_TX#1
DMI_TX1
DMI_RX#1
DMI_RX1
DMI_TX#2
DMI_TX2
DMI_RX#2
DMI_RX2
DMI_TX#3
DMI_TX3
DMI_RX#3
DMI_RX3
SRCCLK_ICH#
SRCCLK_ICH
SRCCLK_ICH# 2
SRCCLK_ICH 2
3VS |
| U39 |
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| 10K_04 |
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| PM_PWROK |
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| 3 | RST# | 2 | PM_PWROK 11 | ||
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| VCC | 1 |
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C843 |
| GND |
| R733 |
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| G690L293T73 |
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0.1u_04 |
| (IMP809) |
| 100K_04 |
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| 3VS |
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| R747 |
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| 8.2K_04 |
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| THERM# | THERM# 11 |
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| C | Q52 |
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AD27
AD28
E22
E20
AF17
E19
C19
D20
C20
C18
D18
R296
24.9_1%_04 
1.5VS
4,34 H_PROCHOT_N
LAN_PWROK R554 | 0_04 |
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| B |
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| C | Q53 | 2N3904 |
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R746 | 8.2K_04 |
| E | D51 |
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B | 2N3904 | PWROKICH |
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| A | C | PWROKICH 6,11 | ||
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| RB751V(R) |
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3V |
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| SPIDBG1 |
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| 3V |
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ICH8R 82801HR |
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| U10 |
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| 8 | VDD | SI |
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| SO |
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| CE# |
3VS | R349 | 1K_04 | 3 | WP# | SCK |
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D04 | 11 SPIWP# | 1K_04 HOLD 7 |
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| R328 | HOLD# | VSS | ||
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| 25VF016B |
|
|
| R320 | R545 | R552 |
|
|
| 8.2K_04(R) | 8.2K_04(R) | 8.2K_04(R) | |
|
|
|
|
| |
5 | R330 | 47_04 |
|
| SPI_MOSI |
2 | R348 | 15_04 |
|
| SPI_MISO |
1 |
|
|
|
| SPI_CS0# |
6 | R329 | 47_04 |
|
| SPI_CLK |
|
| C353 | C391 | C390 | C352 |
|
| 33P_04(R) |
| 33P_04(R) | |
4 |
|
| 33P_04(R) |
| 33P_04(R) |
HOLD 3V 
SPI_CLK SPI_MOSI
2 | 1 |
| SPIDBG | |
4 | 3 | SPI_CS0# | 2 | 1 |
6 | 5 | SPI_MISO |
|
|
SPIWP# |
|
| ||
8 | 7 |
|
| |
10 | 9 |
| 10 | 9 |
|
|
| ||
Diagrams
ICH8 PCI, DMI, CPU, IRQ B - 11
