Intel 440BX Schematics

A

g

g

g

g

g

g

(

B

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Intel 100 MHz Pentium

tm) II processor/440BX AGPset Dual

Processor Customer Reference Schematics

4 4

3 3

2 2

1 1

Revision 1.0

TITLE

COVER SHEET
BLOCK DIAGRAM
SLOT 1 CONNECTOR
CLK SYNTHESIZER 7
82443BX 8,9,10
FET SWITCHES 11,12
DIMM SOCKETS 13,14,15,16
PIIX4E 17.18
IOAPIC 19
ULTRA I/O 20
AGP CONNECTOR 21
PCI CONNECTORS 22,23
ISA CONNECTORS 24
IDE CONNECTORS 25
USB CONNECTORS 26
FLASH BIOS 27
PARALLEL 28
SERIAL/FLOPPY 29
KEYBOARD/MOUSE 30
VRM 31
POWER CONNECTOR 32
PROCESSOR BUS/CORE FREQ. 33
PCI/AGP PULL-UPS & PULL-DOWNS 34
ISA PULL-UPS 35
82443BX/DRAM DECOUPLING 36
BULK DECOUPLING 37
TERMINATION DECOUPLING 38
LM79 39
REVISION HISTORY 40

A

B

PAGE

1
2
3,4,5,6

** Please note that these schematics are subject
to c hange.

THIS SCHEMATIC IS PROVIDED "AS IS" WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF
MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE,
OR ANY WARRANTY OTHERWISE ARISING OUT OF PROPOSAL,
SPECIFICATION OR SAMPLE.

No license, express or implied, by estoppel or otherwise,
to any intellectual property ri

Intel disclaims all liability, includin
any proprietary ri
specification. Intel does not warrant or represent that such
use will not infrin

I2C is a two-wire communications bus/protocol developed
by Philips. SMBus is a subset of the I2C bus/protocol and
was developed by Intel. Implementations of the I2C
bus/protocol or the SMBus bus/protocol may require
licenses from various entities, includin
N.V. and North American Philips Corporation.

*Third-party brands and names are the property
of their respective owners.

ht * Intel Corporation 1997, 1998

Copyri

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Intel Pentium(tm) II processor/440BX AGPset Dual Processor Cover Sheet

Size Document Number Rev
Custom

C

Date: Sheet of

hts, relating to use of information in this

e such rights.

D

hts is granted herein.

liability for infringement of

Philips Electronics

Intel(R) 440BX AGPset 1.0

140Thursday, April 09, 1998

E

1

2

3

4

5

6

7

8

APIC BUS

VRM

VTT GEN.

A A

B B

PG. 31

IOAPIC

82093A A

PG. 19

MAX1617 ME

PG. 3

SMBus
Interface

PENTIUM(tm) II

Processor

(SLOT 1)

PG. 3,4

ADDR

CNTL

DATA

SY STEM BUS

AGP

CONN.

PG. 21

ADDR/DATA

AGP SIDEBAND

CNTL

CK100

&

ITP CON.

PG. 7

ADDR

CNTL

82443BX

492 BGA

PG. 8-10

ADD/DATA

DATA

CNTL

PENTIUM(tm) II

Processor

(SLOT 1)

PG. 5,6

ADDR

CNTL

DATA

SYSTEM BUS

CNTL

ADDR

CKBF

PG. 8

DATA

MEMORY

4 SDRAM DIMM

MODULES

PG. 13-16

VRM

VTT GEN.

PG. 31

MAX1617 ME

PG. 5

SMBus
Interface

PCI BUS

ADD/DATA

USB

USB

2 USB CONN.

PG. 26

CONTROL

C C

INTERRUPTS

CONTROL

ADDR

CNTL

82371EB

324 BGA

PG. 17-18

CNTL

DATA

CNTL

ADDR/DATA

2 PCI IDE
CONNECTORS

PG. 25

PRIMARY

IDE

SECONDARY

IDE

CNTL

ADDR/DATA

PG. 22-23

PCI CONN

PCI CONN

PCI CONN

PCI CONN

ISA BUS

CNTL

PG.14

DATA

CNTL

ADDR

PG 35

ISA CONN

ISA CONN

ADDR

FLASH

BIOS

PG. 27

DATA

X-BUS

KEYBOARD

PG. 30

ADDR

ULTRA I/O

THIS DRAWING CONTAINS INFORMATION WHICH HAS NOT
BEEN VERIFIED FOR MANUFACTURING AN END USER
PRODUCT. iNTEL ISNOT RESPONSIBLE FOR THE MISUSE OF
THIS INFORMATION.

DEVICE TABLE

DEVICE

TYPE

FUSES F1,F2,F3,F4 26,30

Slot 1 Connectors J1A,B J2A,B
ITP Connector J 3
DIMM Sockets J4,J5,J6,J7 13,14,15,16
AGP Connector J8 21
PCI Connector J9,J10,J11,J12
ISA Connector J13, J14 35
IDE Connector J15, J16 25
USB Connector J17,J18
VRM8.2 J25,J26 31

BLM31A700S L1-L13 26,30

CK100 U1 7
82443BX U2 - 1,2,3 8,9,10
CKBF U3
FET SWITCHES

(74CBT16212)
82371EB (PIIX4E) U10A,B 17,18

82093AA (IOAPIC) U12 19
74LVC125 U13A,B,C,D 19,35
FDC37C932FR

(Ultra I/O)
74AS07 U15A,B,C,D,E,F 21,35

74HCT14 U16 A,B,C,D,E,F 27,32,35
E28F002BC-T(FLASH) U17 27
74ALS08 U20 A,B,C,D 32,35
74ALS05 U21 A,B,C,D,E,F 32,33,35
74HC10 U22 A,B,C 18,32
74F07 U23A,B,C,D,E,F 32,33
74FCT3244 U24 33
LM79 U25 39

MAX 1617 ME U28,U29 3,5
74HCT14
74HC112
74F07 U36A,B,C,D,E,F 18, 32, 35
LT1575

REFERENCE
DESIGNATOR

U4,5,6,7,8,9 11,12

3VSB

U11A,B,C,D,E,F74LVC14 18, 32, 33

3VSB

U14 20

5VSB

5VSB

U30
U32

5VSB

PAGE #

3,4,5,6

22,23

26

8

18,35
18

31VR1
31VR2LT1585

LM79

D D

1

PG. 38

2

MOUSE
PG. 30

FLOPPY

CONN.

PG. 29

3

PARA.
CONN.

PG. 28

SER.

CONN.

PG .29
SER.

CONN.

4

DATA

RESET, POWER CONNECTORS

PCI, AGP, & ISA RESISTORS

DECOUPLING CAPACITORS

5

PG. 32

PG. 34-35

PG. 36-37

6

Crystal (14.318 MHz)

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev
Custom

Date: Sheet of

Y1 7

Intel 100MHz Pentium(tm) II processor/440BX AGPset Block Diagram

Intel(R) 440BX AGPset

7

240Thursday, April 09, 1998

8

1.0

A

(R)

(

)

y

]

B

C

D

E

VTT

GND

GND

GND
TDO

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

VTTVCCCORE1

A03
A04
A05
A06
A07
A08
A09

TDI

A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66
A67
A68
A69
A70
A71
A72
A73

HD#61
HD#55

HD#60
HD#53
HD#57

HD#46
HD#49
HD#51

HD#42
HD#45
HD#39

HD#43
HD#37

HD#33
HD#35
HD#31

HD#30
HD#27
HD#24

HD#23
HD#21
HD#16

HD#13
HD#11
HD#10

HD#14
HD#9

HD#8
HD#5

HD#3

HD#1

A20M# 5,33,34
FERR# 5,1 8,34

IGNNE# 5,33,34
TDI_1 7

TDO_1 5,7
PWRGOOD 5,27,32
TES THI 5,34

THERMTRIP# 5,34
LINT0 5,33,34
PICD0 5,19,34

ITPREQ#0 7

VCC3

4 4

SM B SLAVE
ADDRESS
= 0011000b

3 3

2 2

VCC3

FLUSH#5,34
HSMI#5,19
HINIT#5,1 8,34

STPCLK#5,1 8,34
TCK_17
SLP#5,1 8,34

TMS_17
TRST#5,7

LINT15,33,34

PICCLK_P17

100/66#5,7,16
PICD15 ,19,34
PRDY#07

THERM# 5, 18,34

C198

2200pF

HD#62
HD#58
HD#63

HD#56

HD#50

HD#54

HD#59

HD#48

HD#52

HD#41

HD#47

HD#44
HD#36

HD#40
HD#34

HD#38
HD#32
HD#28

HD#29
HD#26
HD#25

HD#22
HD#19
HD#18

HD#20
HD#17

HD#15
HD#12

HD#7
HD#6

HD#4
HD#2
HD#0

EMI_PD3

EMI_PD2

6

1
5
9

U28

STBY#

ADD1
ADD0

SM BDATA
SMBCLK

RESV
RESV
RESV
RESV
RESV

C111

0.1 uF
2

V+

MAX1617 ME

16p QSOP

SMB_ALERT#

3

D+

4

D-

11

R281

4.7K

15

10

SM BDATA5,8,15,16,18,34,39
SMBCLK5,8,15,16,18,34,39

12
14

13
16

GND7GND

MAX1617_2

8

HD#[63:0

5,10

J1A

B01 A01

EMI

B02 A02

FLUSH#

B03

SMI#

B04

INIT#

B05

VCC_VTT

B06

STPCLK#

B07

TCK

B08

SLP#

B09

VCC_VTT

B10

TMS

B11

TRST#

B12

RESERVED

B13

VCC_CORE

B14

RESERVED

B15

RESERVED

B16

LINT[1]

B17

VCC_CORE

B18

PICCLK

B19

BP#[2]

B20

RESERVED

B21

100/66#

B22

PICD[1]

B23

PRDY#

B24

BPM#[1]

B25

VCC_CORE

B26

DEP#[2]

B27

DEP#[4]

B28

DEP#[7]

B29

VCC_CORE

B30

D#[62]

B31

D#[58]

B32

D#[63]

B33

VCC_CORE

B34

D#[56]

B35

D#[50]

B36

D#[54]

B37

VCC_CORE

B38

D#[59]

B39

D#[48]

B40

D#[52]

B41

EMI

B42

D#[41]

B43

D#[47]

B44

D#[44]

B45

VCC_CORE

B46

D#[36]

B47

D#[40]

B48

D#[34]

B49

VCC_CORE

B50

D#[38]

B51

D#[32]

B52

D#[28]

B53

VCC_CORE

B54

D#[29]

B55

D#[26]

B56

D#[25]

B57

VCC_CORE

B58

D#[22]

B59

D#[19]

B60

D#[18]

B61

EMI

B62

D#[20]

B63

D#[17]

B64

D#[15]

B65

VCC_CORE

B66

D#[12]

B67

D#[7]

B68

D#[6]

B69

VCC_CORE

B70

D#[4]

B71

D#[2]

B72

D#[0]

B73

VCC_CORE

EMI_PD1

SLOT1_0.8

VCC_VTT

VCC_VTT

A20M#

FERR#

IGNNE#

PWRGOOD

TESTHI1

THERMTRIP#

RESERVED

LINT[0]

PICD[0]
PREQ#

BPM#[0]

BINIT#

DEP#[0]

DEP#[1]
DEP#[3]
DEP#[5]

DEP#[6]

RESERVED

SLOT 1a

IERR#

BP#[3]

D#[61]
D#[55]

D#[60]
D#[53]
D#[57]

D#[46]
D#[49]
D#[51]

D#[42]
D#[45]
D#[39]

D#[43]
D#[37]

D#[33]
D#[35]
D#[31]

D#[30]
D#[27]
D#[24]

D#[23]
D#[21]
D#[16]

D#[13]
D#[11]
D#[10]

D#[14]

D#[9]

D# [8]
D# [5]

D# [3]
D# [1]

1 1

R1
0

R3
0R20

* Please place as close to the connector as possible

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

FIRST SLOT 1

Size Document Number Rev
Custom

Date: Sheet of

PART I

Intel

, April 09, 1998

440BX AGPset 1.0

340Thursda

E

A

(

)

y

]

]

]

B

C

D

E

VCCCORE1

VA3
VA0

VCC3

J1B

B74 A74

RESET#

B75 A75

BREQ1#

B76

FRCERR#

B77

VCC_CORE

B78

A#[35]

B79

A#[32]

B80

A#[29]

B81

EMI

B82

A#[26]

B83

A#[24]

B84

A#[28]

B85

VCC_CORE

B86

A#[20]

B87

A#[21]

B88

A#[25]

B89

VCC_CORE

B90

A#[15]

B91

A#[17]

B92

A#[11]

B93

VCC_CORE

B94

A#[12]

B95

A#[8]

B96

A#[7]

B97

VCC_CORE

B98

A#[3]

B99

A#[6]

B100

EMI

B101

SLOTOCC#

B102

REQ#[0]

B103

REQ#[1]

B104

REQ#[4]

B105

VCC_CORE

B106

LOCK#

B107

DRDY#

B108

RS#[0]

B109

VCC_5

B110

HIT#

B111

RS#[2]

B112

RESERVED

B113

VCC_3

B114

RP#

B115

RSP#

B116

AP#[1]

B117

VCC_3

B118

AERR#

B119

VID[3]

B120

VID[0]

B121

VCC_3

BCLK

BREQ0#

BERR#

A#[33]
A#[34]
A#[30]

A#[31]
A#[27]
A#[22]

A#[23]

RESERVED

A#[19]

A#[18]
A#[16]
A#[13]

A#[14]
A#[10]

BNR#

BPRI#

TRDY#

DEFER#

REQ#[2]
REQ#[3]

HITM#

DBSY#

RS#[1]

RESERVED

ADS#

RESERVED

AP#[0]

VID[2]
VID[1]
VID[4]

A#[5]

A#[9]
A#[4]

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

A76
A77
A78
A79
A80
A81
A82
A83
A84
A85
A86
A87
A88
A89
A90
A91
A92
A93
A94
A95
A96
A97
A98
A99
A100
A101
A102
A103
A104
A105
A106
A107
A108
A109
A110
A111
A112
A113
A114
A115
A116
A117
A118
A119
A120
A121

VA2
VA1
VA4

R5 0
R7 0
R8 0

HREQ#2
HREQ#3

VID_A2
VID_A1
VID_A4

HA#30

HA#27
HA#22

HA#23
HA#19
HA#18

HA#16
HA#13

HA#14HA#8
HA#10
HA#5

HA#9
HA#4

CPUHCLK1 7
BREQ0# 6,8

BNR# 6,8
BP RI# 6 ,8

HTRDY# 6,8
DEFER# 6,8

HITM# 6,8
DBSY# 6,8

RS#1 6,8

ADS# 6,8

4 4

HRE SET#6,7,8

BREQ1#6

VCC

HA#29
HA#26

HA#24 HA#31
HA#28

HA#20
HA#21
HA#25

HA#15

HA#17

HA#11
HA#12

HA#7

3 3

A_SLOTOCC#32 ,34

HLOCK#6,8
DRDY#6,8
RS#06,8

HIT#6,8
RS#26,8

HA#3

HA#6

HREQ#0

HREQ#1

HREQ#4

VID_A3
VID_A0

R4 0
R6

0

R11
0

SLOT1_0.8

VID_A0

VID_A1

VID_A2

VID_A3

VID_A4

SLOT 1b

JP1

SE L _VID_A0

1

2

3

JP2

SE L _VID_A1

1

2

3

JP3

SE L _VID_A2

1

2

3

JP4

SE L _VID_A3

1

2

3

JP5

SE L _VID_A4

1

2

3

C

R9

8.2K

R12

8.2K

R13

8.2K

R14

8.2K

R15

8.2K

VCC

VRM optional override
jumpers & resistors

Jumper position 1-2 is
stuffed as the default. To
override, R4-R8 must be
removed.

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

FIRST SLOT 1

Size Document Number Rev
Custom

Date: Sheet of

D

PART II

Intel(R) 440BX AGPset 1.0

, April 09, 1998

E

440Thursda

2 2

HA#[31:3

6,8

HREQ#[4:0

6,8

VID_A[4:0

31

* Please place as close to the
connector as possible

1 1

A

B

EMI_PD5

R10
0

EMI_PD4

A

(R)

(

)

y

]

B

C

D

E

VTT

GND

GND

GND
TDO

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

VTTVCCCORE2

A03
A04
A05
A06
A07
A08
A09

TDI

A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66
A67
A68
A69
A70
A71
A72
A73

HD#61
HD#55

HD#60
HD#53
HD#57

HD#46
HD#49
HD#51

HD#42
HD#45
HD#39

HD#43
HD#37

HD#33
HD#35
HD#31

HD#30
HD#27
HD#24

HD#23
HD#21
HD#16

HD#13
HD#11
HD#10

HD#14
HD#9

HD#8
HD#5

HD#3

HD#1

A20M# 3,33,34
FERR# 3,18,34

IGNNE# 3,33,34
TDO_1 3,7

TDO_2 7
PW RGOOD 3,27,32
TESTHI 3,34

THERMTRIP# 3,34
LINT0 3 ,3 3,34
PICD0 3,19,34

ITPREQ#1 7

VCC3

SMB SLAVE
ADDRESS
= 0011010b

SM BDATA3,8,15,16,18,34,39
SMBCLK3,8,15,16,18,34,39

VCC3

R282

4.7K

15

6

10

12
14

1
5

9
13
16

U29

STBY#

ADD1
ADD0

SM BDATA
SMBCLK

RESV
RESV
RESV
RESV
RESV

MAX1617_2

C112

0.1 uF
2

V+

MAX1617 ME

16p QSOP

SMB_ALERT#

GND7GND

8

FLUSH#3,34
HSMI#3,19
HINIT#3,18,34

STPCLK#3,18,34
TCK_27
SLP#3,18,34

TMS_27
TRST#3,7

3

D+

4

D-

PICCLK_P27

11

C199

2200pF

LINT13,3 3,34

100/66#3,7,16
PICD13,19,34
PRDY#17

THERM# 3,18,34

HD#62
HD#58
HD#63

HD#56

HD#50
HD#54

HD#59
HD#48
HD#52

HD#41

HD#47
HD#44

HD#36
HD#40
HD#34

HD#38
HD#32
HD#28

HD#29
HD#26
HD#25

HD#22
HD#19
HD#18

HD#20
HD#17

HD#15
HD#12

HD#7
HD#6

HD#4
HD#2
HD#0

EMI_PD8

EMI_PD7

HD#[63:0

3,10

4 4

3 3

2 2

J2A

B01 A01

EMI

B02 A02

FLUSH#

B03

SMI#

B04

INIT#

B05

VCC_VTT

B06

STPCLK#

B07

TCK

B08

SLP#

B09

VCC_VTT

B10

TMS

B11

TRST#

B12

RESERVED

B13

VCC_CORE

B14

RESERVED

B15

RESERVED

B16

LINT[1]

B17

VCC_CORE

B18

PICCLK

B19

BP#[2]

B20

RESERVED

B21

100/66#

B22

PICD[1]

B23

PRDY#

B24

BPM#[1]

B25

VCC_CORE

B26

DEP#[2]

B27

DEP#[4]

B28

DEP#[7]

B29

VCC_CORE

B30

D#[62]

B31

D#[58]

B32

D#[63]

B33

VCC_CORE

B34

D#[56]

B35

D#[50]

B36

D#[54]

B37

VCC_CORE

B38

D#[59]

B39

D#[48]

B40

D#[52]

B41

EMI

B42

D#[41]

B43

D#[47]

B44

D#[44]

B45

VCC_CORE

B46

D#[36]

B47

D#[40]

B48

D#[34]

B49

VCC_CORE

B50

D#[38]

B51

D#[32]

B52

D#[28]

B53

VCC_CORE

B54

D#[29]

B55

D#[26]

B56

D#[25]

B57

VCC_CORE

B58

D#[22]

B59

D#[19]

B60

D#[18]

B61

EMI

B62

D#[20]

B63

D#[17]

B64

D#[15]

B65

VCC_CORE

B66

D#[12]

B67

D# [7]

B68

D# [6]

B69

VCC_CORE

B70

D# [4]

B71

D# [2]

B72

D# [0]

B73

VCC_CORE

EMI_PD6

SLOT1_0.8

VCC_VTT

VCC_VTT

IGNNE#

PWRGOOD

TES THI1

THERMTRIP#

RESERVED

LINT[0]

PICD[0]
PREQ#

BPM#[0]

DEP#[0]

DEP#[1]
DEP#[3]
DEP#[5]

DEP#[6]

RESERVED

SLOT 1a

IERR#

A20M#

FERR#

BP#[3]

BINIT#

D#[61]
D#[55]

D#[60]
D#[53]
D#[57]

D#[46]
D#[49]
D#[51]

D#[42]
D#[45]
D#[39]

D#[43]
D#[37]

D#[33]
D#[35]
D#[31]

D#[30]
D#[27]
D#[24]

D#[23]
D#[21]
D#[16]

D#[13]
D#[11]
D#[10]

D#[14]

D# [9]

D#[8]
D#[5]

D#[3]
D#[1]

1 1

R16
0

R17
0

R18
0

* P lease place as close to the connector as possible

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

SECOND SLOT 1

Size Document Number Rev
Custom

Date: Sheet of

Intel

, April 09, 1998

PART I

440BX AGPset 1.0

540Thursda

E

A

(

)

y

]

]

]

B

C

D

E

VCCCORE2

VB3
VB0VID_B0

VCC3

J2B

B74 A74

RESET#

B75 A75

BREQ1#

B76

FRCERR#

B77

VCC_CORE

B78

A#[35]

B79

A#[32]

B80

A#[29]

B81

EMI

B82

A#[26]

B83

A#[24]

B84

A#[28]

B85

VCC_CORE

B86

A#[20]

B87

A#[21]

B88

A#[25]

B89

VCC_CORE

B90

A#[15]

B91

A#[17]

B92

A#[11]

B93

VCC_CORE

B94

A#[12]

B95

A#[8]

B96

A#[7]

B97

VCC_CORE

B98

A#[3]

B99

A#[6]

B100

EMI

B101

SLOTOCC#

B102

REQ#[0]

B103

REQ#[1]

B104

REQ#[4]

B105

VCC_CORE

B106

LOCK#

B107

DRDY#

B108

RS#[0]

B109

VCC_5

B110

HIT#

B111

RS#[2]

B112

RESERVED

B113

VCC_3

B114

RP#

B115

RSP#

B116

AP#[1]

B117

VCC_3

B118

AERR#

B119

VID[3]

B120

VID[0]

B121

VCC_3

BCLK

BREQ0#

BERR#

A#[33]
A#[34]
A#[30]

A#[31]
A#[27]
A#[22]

A#[23]

RESERVED

A#[19]

A#[18]
A#[16]
A#[13]

A#[14]
A#[10]

BNR#

BPRI#

TRDY#

DEFER#

REQ#[2]
REQ#[3]

HITM#

DBSY#

RS#[1]

RESERVED

ADS#

RESERVED

AP#[0]

VID[2]
VID[1]
VID[4]

A#[5]

A#[9]
A#[4]

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

GND

A76
A77
A78
A79
A80
A81
A82
A83
A84
A85
A86
A87
A88
A89
A90
A91
A92
A93
A94
A95
A96
A97
A98
A99
A100
A101
A102
A103
A104
A105
A106
A107
A108
A109
A110
A111
A112
A113
A114
A115
A116
A117
A118
A119
A120
A121

VB2
VB1
VB4

R20 0
R22 0
R23 0

HREQ#2
HREQ#3

VID_B2
VID_B1
VID_B4

HA#30
HA#31

HA#27
HA#22

HA#23
HA#19
HA#18

HA#16
HA#13

HA#14
HA#10
HA#5

HA#9
HA#4

CPUHCLK2 7

BREQ1# 4

BNR# 4,8
BP RI# 4 ,8

HTRDY# 4,8
DEFER# 4,8

HITM# 4,8
DBSY# 4,8

RS#1 4,8

ADS# 4,8

4 4

HRE SET#4,7,8

BREQ0#4,8

VCC

HA#29
HA#26

HA#24
HA#28

HA#20
HA#21
HA#25

HA#15

HA#17

HA#11
HA#12

HA#8

HA#7

3 3

B_SLOTOCC#32 ,34

HLOCK#4,8
DRDY#4,8
RS#04,8

HIT#4,8
RS#24,8

HA#3

HA#6

HREQ#0

HREQ#1

HREQ#4

VID_B3

R19 0
R21

0

R26
0

SLOT1_0.8

VID_B0

VID_B1

VID_B2

VID_B3

VID_B4

SLOT 1b

JP6

SE L_VID_B0

1

2

3

JP7

SE L_VID_B1

1

2

3

JP8

SE L_VID_B2

1

2

3

JP9

SE L_VID_B3

1

2

3

JP10

SE L_VID_B4

1

2

3

C

R24

8.2K

R27

8.2K

R28

8.2K

R29

8.2K

R30

8.2K

VCC

VRM optional override
jumpers & resistors

Jumper position 1-2 is
stuffed as the default. To
override, R19-R23 must
be removed.

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

SECOND SLOT 1

Size Document Number Rev
Custom

Date: Sheet of

D

PART II

Intel(R) 440BX AGPset 1.0

, April 09, 1998

E

640Thursda

2 2

HA#[31:3

4,8

HREQ#[4:0

4,8

VID_B[4:0

31

* Please place as close to
the connector as possible

1 1

A

EMI_PD10

B

R25
0

EMI_PD9

A

g

g

L15

FBHS01L

CD85

0.01 uF
16V

4 4

*NOTE* Override to
66MHz only.

JP11

100/66#3,5,16

PCI_STP#18

3 3

CPU_STP#18

SUSA#18

Stuffing option to enable the

of the CPUCLKs,

stoppin
PCICLKs, and the powerdown of
the CK100. Please note that the
resistors are not stuffed.

2 2

1 1

VCC3

R31
200

R38

8.2K

R381
0

R382
0

R383
0

DO NOT STUFF

A

VCC3

R40

R39

8.2K

8.2K

option to enable Spread#

Stuffin
function for possible EMI reduction.

R54
0

R283
10K

HRESET#4,6,8

DBRESET#32

VCC3

TCK_13

TCK_25

TMS_13

TMS_25

CD86

0.01 uF
16V

R284
10K

B

CLOCK SYNTHESIZER

21

CD88

CD89

C2
10pF

R64

R65

47

47

42
28

27
26
25

31
30
29

100pF
16V

U1

4

XTALIN

5

XTALOUT
RESV

RESV
SEL0

SEL1
SEL_100/66#

PCI_STP#
CPU_STP#
PWRDWN#

CK100_05

ITP_RST

47

47

CD90

C168

+

100pF

22uF

16V

9

15

19

33

48

21

VDDPCI0

VDDPCI1

VDD48MHZ

VDDCORE0

VDDCORE1

CK100

VSSREF

VS S PCI0

3

6

12

VCC2.5 VTT

R55

1K

ITPCLK

TDO_JMP TDI_JMP

1 - 2 1 - 2

2 - 3 2 - 3

46

41

37

VDDAPIC

VDDCPU0

VDDQREF

VDDCPU1

APICCLK_0
APICCLK_1

VSSCORE1

VSS48MHZ

VSS CORE0

VSSPCI1

VSSPCI2

VSSCPU0

VSSCPU1

18

38

34

32

24

20

R56

R57

OPTIONAL ITP

1K

1K

TEST

5%

CONNECTOR

ITP_JMP CONFIG

CD87

0.01uF
16V

R285
10K

100pF
16V

Y1

14.318MHz

C1
10pF

R60
240

R66

R69

B

C

CPUCLK0
CPUCLK1
CPUCLK2
CPUCLK3

PCICLK_F
PCICLK_1
PCICLK_2
PCICLK_3
PCICLK_4
PCICLK_5
PCICLK_6
PCICLK_7

48MHZ_0
48MHZ_1

REF0
REF1
REF2

VSSAPIC

43

J3
1 2

3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30

ITP CONN

1 - 22 - 3

C

C172

100pF
16V

40
39
36
35

7
8
10
11
13
14
16
17

R47

22
23

R48 22

45
44

R51

1

R52

2
47

R53

SINGLE CPU1

DUAL CPU

SINGLE CPU2

C173

100pF
16V

R32
R33 22
R34 22
R35 22

R36 22
R37 22
R41 22
R42 22
R43 22
R44 22
R45 22

22

22
22
22

R_PRDY0
R_PRDY1

CPU

CONFIGJP12 JP13

C174

0.01uF
16V

22

R68 240

L14

2 1

FBHS01L

C175

C176

C177

0.01uF
16V

CPUHCLK1 4
CPUHCLK2 6
BXHCLK 8

ITPCLK

PXPCLK 18
PCLK1 22
PCLK2 22
PCLK3 23
PCLK4 23
BXPCLK 9
PCLKAPIC 19

48Mhz_0 18

APICCLK 19

OSC1 24
OSC2 18
OSC3 20

+

0.01uF
16V

22uF

HPICCLK

VCC2.5 VTT VTT

R61
330

R67 240

R70
680

TDO_13,5
TDO_25

D

VCC2.5VCC3

*NOTE* For power managed systems, the PIIX4 must be
connected t PCICLK_F of the CKE100 which is a free
running PCLK not affected by the assertion of
PCISTOP#.

E

STU FFING OPTION

*NOTE* 10-15 pF caps to ground may be
desirable to reduce the effects of EMI.

R58

R59

56

R63
330

D

56

VCC2.5

R71

R72
150

150

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

CLOCK SYNTHESIZER

Size Document Number Rev
Custom

Date: Sheet of

TR ST# 3,5
ITPREQ#0 3

PRDY#0 3
ITPREQ#1 5

PRDY#1 5

JP12

1

2

3

TDO_JMP

Intel(R) 440BX AGPset

R46
10

R50
10

JP13

2

TDI_JMP

PICCLK_P1 3

PICCLK_P2 5

VCC2.5

1
3

E

740Thursday, April 09, 1998

R73
330

TDI_1 3

1.0

A

y

y

g

[

y

]

]

]

HA#[31:3

4,6

HA#3
HA#4
HA#5
HA#6
HA#7
HA#8

HREQ#0
HREQ#1
HREQ#2
HREQ#3

CRESET#

HA#9
HA#10
HA#11
HA#12
HA#13
HA#14
HA#15
HA#16
HA#17
HA#18
HA#19
HA#20
HA#21
HA#22
HA#23
HA#24
HA#25
HA#26
HA#27
HA#28
HA#29
HA#30
HA#31

RS#0
RS#1
RS#2

HREQ#4

4 4

HRE SET#4,6,7
ADS#4,6

3 3

VCC3

2 2

1 1

BNR#4,6
BPRI#4,6

DBSY#4,6
DEFER#4,6
DRDY#4,6
HIT#4,6
HITM#4,6
HLOCK#4,6
HTRDY#4,6

BREQ0#4,6

RS#[2:0

4,6

HREQ#[4:0

4,6

R75

8.2K

**TESTIN# pullup ma
removed after validation
has been completed.

BXHCLK7

CR ESET#33

PCI RST#17 ,21,22,23

A

be

G25

H22

G23

H23

G24

F26
G26
G22

F22

F23

F24

F25

E23

E26

E25
D25
D26

B25
C26

A25
C25

A24
D24
C23

B24
C24

A23

E22
D23

B23

K21

H24

H26

L23

J26
K23
L24
L22
K22
H25
B26

K26
L26
L25

J22

J23
K24
K25

J25

N23

M25
M26

AE22
AE23

P22

A3

U2-1

HA3#
HA4#
HA5#
HA6#
HA7#
HA8#
HA9#
HA10#
HA11#
HA12#
HA13#
HA14#
HA15#
HA16#
HA17#
HA18#
HA19#
HA20#
HA21#
HA22#
HA23#
HA24#
HA25#
HA26#
HA27#
HA28#
HA29#
HA30#
HA31#

CPURST#
ADS#
BNR#
BPRI#

DBSY#
DEFER#
DRDY#
HIT#
HITM#
HLOCK#
HTRDY#
BREQ0#

RS#0
RS#1
RS#2

HREQ#0
HREQ#1
HREQ#2
HREQ#3
HREQ#4

HCLKIN
TE S TIN#

CRESET#
PCI RST#

RESVA
RE SVB
RESVC

443 BX_10

B

VCC3

V21

Y21

F18

F20

G21

J21

AA7

VDD

VDD

VDDF7VDDF9VDD

VDD

VDDG6VDD

VDDJ6VDD

VDD

82443BX

492 BGA

SYSTEM INTERFACE

VSSA1VSS

VSS

VSSC5VSSC9VSS

VSS

VSSE3VSS

VSS

VSS

VSSF6VSSF8VSS

A14

A26

C18

C22

B

E12

E15

E24

F19

F21

AA9

VSS

AA18

AA20

VDD

VDD

VSSH6VSS

H21

VDD

CKE2/CSA6#
CKE3/CSA7#

DRAM INTERFACE

CKE4/CSB6#
CKE5/CSB7#

CKE0/FENA

CKE1/GCKE

VSSJ3VSS

J24

MAA0
MAA1
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8

MAA9
MAA10
MAA11
MAA12
MAA13

MAB0#
MAB1#
MAB2#
MAB3#
MAB4#
MAB5#
MAB6#
MAB7#
MAB8#
MAB9#

MAB10
MAB11#
MAB12#

MAB13

CSA0#
CSA1#
CSA2#
CSA3#
CSA4#
CSA5#

CSB0#
CSB1#
CSB2#
CSB3#
CSB4#
CSB5#

DQMA0
DQMA1
DQMA2
DQMA3
DQMA4
DQMA5
DQMA6
DQMA7

DQMB1
DQMB5

SRAS_A#
SRAS_B#
SCAS_A#
SCAS_B#

WE_A#

WE_B#
DCLKO

DCLKWR

DCLKRD

C

AF17
AB16
AE17
AC17
AF18
AE19
AF19
AC18
AC19
AE20
AD20
AF21
AC21
AF25

AD16
AC16
AD17
AB17
AE18
AD19
AB18
AB19
AF20
AC20
AB20
AE21
AD21
AF22

AB14
AF15
AE15
AC15
AD15
AE16
AE24
AD23

AE25
AD24
AD26
AC24
AC26
AB23
AC23
AF24

AD13
AC13
AC25
AB26
AE14
AC14
AA22
AA24

AE13
AD14

AC22
AF23

**On 4-DIMM solutions that don't support
self-refresh mode, GCKE should be N/C.

AF16
AA17
AF12
AB13

AE12
AC12

AB21
AD25
AB22

**Locate R398 close to CKBF and
R399 close to 443BX.
**Locate "T" and cap close to BX.

** Pl ea se make DCLKREF trace length equal to 2.5" more
than the DCLK outputs to the DIMMs. DCLK outputs to
the DIMMs should all be the same recommended len

MAA0
MAA1
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8
MAA9
MAA10
MAA11
MAA12
MAA13

MAB#0
MAB#1
MAB#2
MAB#3
MAB#4
MAB#5
MAB#6
MAB#7
MAB#8
MAB#9
MAB10
MAB#11
MAB#12
MAB13

CS_A#0
CS_A#1
CS_A#2
CS_A#3
CS_A#4
CS_A#5
CS_A#6
CS_A#7

CS_B#0
CS_B#1
CS_B#2
CS_B#3
CS_B#4
CS_B#5
CS_B#6
CS_B#7

DQMA0
DQMA1
DQMA2
DQMA3
DQMA4
DQMA5
DQMA6
DQMA7

DQMB1
DQMB5

R399 22

Example: if DCLK
then DCLKREF = 2.5" + 2.5".

C

SRA S_A# 13,14
SR AS_B# 15,16
SCA S_A# 13,14
SC AS_B# 15,16

WE_A# 13,14
WE_ B# 15,16

DCLKREF

C3
20pF

DQMB1 15,16
DQMB5 15,16
FENA 11,12
GCKE 10

0-11] = 2.5"

R398 47

R74

4.7k

VCC3

38
11
25

24

47
48

1
2

CKBF

U3

OE
BUF_IN
SCLOCK

SD ATA

RESV
RESV
RESV
RESV

D

MAA[13:0]13 ,14

MAB#[13:0]15,16

CS_A#[1:0]13
CS_A#[3:2]14
CS_A#[5:4]15
CS_A#[7:6]16

CS_B#[1:0]13
CS_B#[3:2]14
CS_B#[5:4]15
CS_B#[7:6]16

DQMA[7:0]13 ,14,15,16

3

23

VDD

VDDIIC

CKBF

VSS6VSS10VSS

VSSIIC

26

th.

D

E

L16

2 1

FBHS01L

100pF

.01uF

C184

100pF

.01uF

C186

100pF

.01uF

C188

100pF

.01uF

C190

100pF

.01uF

C192

22uF

46

VDD7VDD12VDD16VDD20VDD29VDD33VDD37VDD42VDD

SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM4
SDRAM5
SDRAM6
SDRAM7
SDRAM8

SDRAM9
SDRAM10
SDRAM11
SDRAM12
SDRAM13
SDRAM14
SDRAM15
SDRAM16
SDRAM17

VSS19VSS22VSS27VSS30VSS34VSS39VSS

15

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev

Custom

Date: Sheet of

R76 0

4

R77

5

R78 0

8

R79 0

9

R80 0

13

R81 0

14

R82 0

17

R83 0

18

R84 0

31

R85 0

32

R86 0

35

R87 0

36

R88 0

40

R89 0

41

R90 0

44

R92 0

45

R93 0

21

R385 0

28

43

slave address =
1101001b

82443BX SYSTEM AND DRAM INTERFACES

, April 09, 1998

DCLK10

0

DCLK11
DCLK6
DCLK7
DCLK0
DCLK1
DCLK14
DCLK15
DCLK13
DCLK12
DCLK3
DCLK2
DCLK5
DCLK4
DCLK9
DCLK8
DCLKREF

*The unused SDRAM clocks
ma
SMBus interface.

SMBCLK 3,5,15,16,18,34,39
SM BDATA 3,5,15,16,18,34,39

Intel(R) 440BX AGPset 1.0

VCC3

C183

C185

C187

C189

C191

+

C193

DCLK[15:0]13, 14,15,16

**PLEASE NOTE**
These clock
assignments may
not be optimum.

SRCLK 10

be disabled using the

840Thursda

E

A

y

]

]

]

]

B

VCC3

C

D

E

AD[31:0

17 ,22,23

4 4

3 3

C/BE#[3:0

17 ,22,23

FRAME#17, 22,23,34
DE VSEL#17, 22,23,34
IRDY#17, 22,23,34
TRDY#17, 22,23,34
STOP#17,22,23,34
PAR17,22,23

PHLD#17,34
PHLDA#17,34

17, 22,23,34

22 ,23,34

SERR#17, 22,23,34
PLOCK#22,23,34

WSC#19

PREQ#[3:0

PREQ#434

PGNT#[3:0

VCC3

R95
10K

2 2

SUSTAT#18

R400
0

DO NOT STUFF

Stuffing option to enable and test
the POS state.

1 1

A

PGNT#434

PWROK18,32

VREF5V18
BXPCLK7

R294

100

AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31

C/BE#0
C/BE#1
C/BE#2
C/BE#3

PREQ#0
PREQ#1
PREQ#2
PREQ#3
PREQ#4

PGNT#0
PGNT#1
PGNT#2
PGNT#3
PGNT#4

U2-2

K6

AD0

K2

AD1

K4

AD2

K3

AD3

K5

AD4

J1

AD5

J2

AD6

H2

AD7

H1

AD8

J5

AD9

H3

AD10

H5

AD11

H4

AD12

G1

AD13

G2

AD14

G4

AD15

D1

AD16

D3

AD17

D2

AD18

C1

AD19

A2

AD20

C3

AD21

B3

AD22

D4

AD23

E5

AD24

A4

AD25

D5

AD26

B4

AD27

B5

AD28

A5

AD29

E6

AD30

C6

AD31

J4

C/BE0#

G3

C/BE1#

E4

C/BE2#

C4

C/BE3#

E2

FRAME#

F3

DEVSEL#

E1

IRDY#

F5

TRDY#

F4

STOP#

G5

PAR

F1

SERR#

F2

PLOCK#

B6

PHOLD#

D6

PHLDA#

AE3

WSC#

A6

PR EQ0#/IOREQ#

C7

PREQ1#

F10

PREQ2#

D8

PREQ3#

D10

PREQ4#

AD4

SUSTAT#

E7

PGNT0#/IOGNT#

D7

PGNT1#

E10

PGNT2#

E8

PGNT3#

E9

PGNT4#

AF3

BX-PWROK

AC4

CLKRUN#

C2

REFVCC5

B2

PCLKIN

443BX

B

M12

L16

L14

L13

L11

VDD

VDD

VDD

VDD

PCI INTERFACE

PCI ARB & PWR MGT

VSSN1VSSM5VSS

VSS

VSS

VSS

VSS

VSS

L12

L15

M11

M13

M14

M16

M22

N11

N16

P11

P16

R12

M15

VDD

VDD

VDD

VDD

VDD

VDD

82443BX

492 BGA

VSS

VSS

VSS

VSS

VSS

VSS

N12

N13

N14

N15

P12

P13

R15

VDD

VSS

P14

T11

VDD

VSS

P15

T13

VDD

VSS

P26

T14

VDD

VSS

T12

T16

VDD

VSS

T15

N26

VDD

VSS

VDD

VSSR5VSS

R11

C

P1

VDD

VSS

R13

AE1

VDD

VSS

R14

V6

VDD

VSS

R16

Y6

VDD

GDEVSEL#

AGP INTERFACE

GADSTB-A
GADSTB-B

VSS

VSSV3VSS

R22

GAD0
GAD1
GAD2
GAD3
GAD4
GAD5
GAD6
GAD7
GAD8

GAD9
GAD10
GAD11
GAD12
GAD13
GAD14
GAD15
GAD16
GAD17
GAD18
GAD19
GAD20
GAD21
GAD22
GAD23
GAD24
GAD25
GAD26
GAD27
GAD28
GAD29
GAD30
GAD31

GC/BE0#
GC/BE1#
GC/BE2#
GC/BE3#

GFRAME#

GIRDY#
GTRDY#
GSTOP#

GPAR

GREQ#

GGNT#

GCLKOUT

GCLKIN

PIPE#

SBA0
SBA1
SBA2
SBA3
SBA4
SBA5
SBA6
SBA7

RBF#

ST0
ST1
ST2

SB-STB

AGPREFV

VSSW6VSS

V24

W21

AB5
AE2
AD3
AD2
AD1
AC3
AC1
AB4
AB1
AA5
AA3
AA4
AA2
AA1
Y5
Y3
W1
V2
W2
U5
V1
U4
U3
U1
T3
T4
T2
T1
U6
R3
R4
R2

AB2
Y4
V4
U2

W3
W5
V5
W4
Y1
Y2

L5
L3

P5
N5

M3
K1
M2
M1
N2
P2
P4
P3
R1

M4
L4

L2
L1

AC2
T5
N3

N4

GAD0
GAD1
GAD2
GAD3
GAD4
GAD5
GAD6
GAD7
GAD8
GAD9
GAD10
GAD11
GAD12
GAD13
GAD14
GAD15
GAD16
GAD17
GAD18
GAD19
GAD20
GAD21
GAD22
GAD23
GAD24
GAD25
GAD26
GAD27
GAD28
GAD29
GAD30
GAD31

GCBE#0
GCBE#1
GCBE#2
GCBE#3

R98
22

SBA0
SBA1
SBA2
SBA3
SBA4
SBA5
SBA6
SBA7

ST0
ST1
ST2

R97
22

**NOTE** Locate
circuitry close to
443BX.

D

GAD[31:0]21

GC/BE#[3:0]21

GFRAME# 21,34
GD EVSEL# 21 ,34
GIRDY# 21,34
GTRDY# 21,34
GSTOP# 21,34
GPAR 21,34

GR EQ# 21,34
GGNT# 21,34

GC L KOUT 21

** Note** Please make the
GCLKIN trace length 3.3"

PIPE# 21,34

more than the GCLKOUT
recommended trace length.
Stub to tee should be 1"
MAX.

SBA[7:0]21
RB F# 21,34

ST[2:0]21
ADSTB-A 21,34
AD S TB-B 21,34
SBSTB 21,34

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

82443BX PCI AND AGP INTERFACES

Size Document Number Rev

Custom

Date: Sheet of

Intel(R) 440BX AGPset 1.0

, April 09, 1998

C5

0.001uF

VCC3

R99

**NOTE: It is

150

recommended

1%

that the tolerance
on these
resistors be 1%

R101

in order to meet

100
1%

the margins of
this reference
voltage.

940Thursda

E

A

g

g

y

]

]

MD[63:0

11,12

4 4

3 3

2 2

MECC[7:0

12

MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MD16
MD17
MD18
MD19
MD20
MD21
MD22
MD23
MD24
MD25
MD26
MD27
MD28
MD29
MD30
MD31
MD32
MD33
MD34
MD35
MD36
MD37
MD38
MD39
MD40
MD41
MD42
MD43
MD44
MD45
MD46
MD47
MD48
MD49
MD50
MD51
MD52
MD53
MD54
MD55
MD56
MD57
MD58
MD59
MD60
MD61
MD62
MD63

MECC0
MECC1
MECC2
MECC3
MECC4
MECC5
MECC6
MECC7

U2-3

AF4

MD0

AE4

MD1

AF5

MD2

AD6

MD3

AE6

MD4

AB7

MD5

AC7

MD6

AF7

MD7

AB8

MD8

AB9

MD9

AC9

MD10

AE9

MD11

AB10

MD12

AC10

MD13

AF10

MD14

AD11

MD15

Y24

MD16

Y25

MD17

W23

MD18

W24

MD19

W26

MD20

W25

MD21

V26

MD22

U24

MD23

U23

MD24

T22

MD25

T23

MD26

T26

MD27

R24

MD28

R25

MD29

P23

MD30

N25

MD31

AC5

MD32

AE5

MD33

AB6

MD34

AC6

MD35

AF6

MD36

AD7

MD37

AE7

MD38

AC8

MD39

AD8

MD40

AF8

MD41

AE8

MD42

AF9

MD43

AD10

MD44

AE10

MD45

AB11

MD46

AC11

MD47

Y23

MD48

Y26

MD49

W22

MD50

V22

MD51

V23

MD52

V25

MD53

U22

MD54

U25

MD55

U26

MD56

T24

MD57

T25

MD58

U21

MD59

R23

MD60

R26

MD61

P24

MD62

P25

MD63

AE11

MECC0

AA10

MECC1

AA23

MECC2

AA26

MECC3

AF11

MECC4

AD12

MECC5

AA25

MECC6

Y22

MECC7

443BX_10

VTT VTT

B

VCC3

MEMORY DATA BUS

VSS

VSS

VSS

VSS

VSS

AA8

AA6

N24

AA19

AB25

AF2

AE26

N22

AF14

VDDB1VDD

VDD

VDD

82443BX

492 BGA

VSS

VSS

VSS

VSS

VSS

VSS

AB3

AD5

AB12

AB15

AB24

AD9

AA21

VDD

VSS

AD18

VSS

AD22

VSS

AF1

VSS

AF13

VSS

AF26

VSS

HD0#
HD1#
HD2#
HD3#
HD4#
HD5#
HD6#
HD7#
HD8#

HD9#
HD10#
HD11#
HD12#
HD13#
HD14#
HD15#
HD16#
HD17#
HD18#
HD19#
HD20#
HD21#
HD22#
HD23#
HD24#
HD25#
HD26#
HD27#
HD28#
HD29#
HD30#
HD31#
HD32#
HD33#
HD34#
HD35#
HD36#
HD37#
HD38#
HD39#
HD40#
HD41#

HOST DATA BUS

HD42#
HD43#
HD44#
HD45#
HD46#
HD47#
HD48#
HD49#
HD50#
HD51#
HD52#
HD53#
HD54#
HD55#
HD56#
HD57#
HD58#
HD59#
HD60#
HD61#
HD62#
HD63#

GTLREFA

GTLREFB

VTTA

VTTB

B22
D22
E21
A22
D21
C21
A21
C20
B21
E20
A20
E19
B20
E18
D20
D19
D18
C19
B19
A18
A19
B18
C17
E17
D17
B17
C16
A17
C15
B16
D16
A16
B15
A15
D14
D15
B13
C14
E14
D13
A13
D12
B12
B14
C13
E13
D11
A12
B11
A11
B7
C12
C8
B10
A10
A9
A7
E11
D9
C11
C10
B8
A8
B9

M23
E16
M24
F17

C

HD#0
HD#1
HD#2
HD#3
HD#4
HD#5
HD#6
HD#7
HD#8
HD#9
HD#10
HD#11
HD#12
HD#13
HD#14
HD#15
HD#16
HD#17
HD#18
HD#19
HD#20
HD#21
HD#22
HD#23
HD#24
HD#25
HD#26
HD#27
HD#28
HD#29
HD#30
HD#31
HD#32
HD#33
HD#34
HD#35
HD#36
HD#37
HD#38
HD#39
HD#40
HD#41
HD#42
HD#43
HD#44
HD#45
HD#46
HD#47
HD#48
HD#49
HD#50
HD#51
HD#52
HD#53
HD#54
HD#55
HD#56
HD#57
HD#58
HD#59
HD#60
HD#61
HD#62
HD#63

VTT

D

HD#[63:0]3,5

4.7K

SRCLK8

GCKE8 B_CKE7 16

**NOTE** GCKE trace length
from the 443BX to the shift
register should be between
1" MIN and 4" MAX.

**NOTE** If GCKE is not used
then each CKE requires a 22K
pullup to VCC3.

GTLREF2
GTLREF1

R386

R396

4.7K
C194
27pF

U33

1

1EN

48

C1

24

2EN

25

C2

47

1D1

46

1D2

44

1D3

43

1D4

41

1D5

40

1D6

38

1D7

37

1D8

36

2D1

35

2D2

33

2D3

32

2D4

30

2D5

29

2D6

27

2D7

26

2D8

SN74LVCH16374

**NOTE** The seven
outputs that circle around
to b ec ome inputs on the
SN74LVCH16374 should
have trace len

er than 2".

lon

2

1

1Q1

3

1Q2

5

1Q3

6

1Q4

8

1Q5

9

1Q6

11

1Q7

12

1Q8

13

2

2Q1

14

2Q2

16

2Q3

17

2Q4

19

2Q5

20

2Q6

22

2Q7

23

2Q8

ths no

E

**NOTE** The trace
lengths of
BCKE[7:0] should
be 3.0"

B_CKE6 16

B_CKE5 15

B_CKE4 15

B_CKE3 14

B_CKE2 14

B_CKE1 13

B_CKE0 13

R102
75
1%

1 1

R103
150
1%

A

C6

0.001uF

B

R104
75
1%

R105
150
1%

C7

0.001uF

GTLREF2GTLREF1

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

82443BX MD/HD BUS

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset 1.0

, April 09, 1998

10 40Thursda

E

A

(

)

y

[

]

]

]

]

]

[

]

]

FET-SWITCHES (MEMORY DATA LINES & ECC)

VCC

4 4

FENA8,12

MD[63:0

10,12 MD_A[63:0]12 ,13,14

R299
500

R301
500

R303
500

R305
500

R307
500

R309
500

R311
500

MD

R320
500

R322
500

R324
500

R326
500

R328
500

R330
500

R313
500

R316
500

R318
500

FENA

63:0

R315
500

R317
500

R319
500

R321
500

R323
500

R325
500

R327
500

R329
500

A

3 3

2 2

1 1

MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11

MD24
MD25
MD26
MD27
MD28
MD29
MD30
MD31
MD32
MD33
MD34
MD35

VCC

R108

4.7K

R107

4.7K

1
56
55

2

3

4

5

6

7

9
10
11
12
13
14
15
16
18
20
21
22
23
24
25
26
27
28

U6

1
56
55

2

3

4

5

6

7

9
10
11
12
13
14
15
16
18
20
21
22
23
24
25
26
27
28

PI5C16212A

U5

S0
S1
S2

1A1
1A2
2A1
2A2
3A1
3A2
4A1
4A2
5A1
5A2
6A1
6A2
7A1
7A2
8A1
8A2
9A1
9A2
10A1
10A2
11A1
11A2
12A1
12A2

PI5C16212A

S0
S1
S2

1A1
1A2
2A1
2A2
3A1
3A2
4A1
4A2
5A1
5A2
6A1
6A2
7A1
7A2
8A1
8A2
9A1
9A2
10A1
10A2
11A1
11A2
12A1
12A2

10B1
10B2
11B1
11B2
12B1
12B2

VCC

1B1
1B2
2B1
2B2
3B1
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
8B2
9B1

9B2
10B1
10B2
11B1
11B2
12B1
12B2

GND
GND
GND
GND

VCC

GND
GND
GND
GND

1B1
1B2
2B1
2B2
3B1
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
8B2
9B1
9B2

B

VCC

17

54
53

MD_B0
52
51

MD_B1
50
48

MD_B2
47
46

MD_B3
45
44

MD_B4
43
42

MD_B5
41
40

MD_B6
39
37

MD_B7
36
35

MD_B8
34
33

MD_B9
32
31

MD_B10
30
29

MD_B11
8

19
38
49

MD_A0
MD_A1
MD_A2
MD_A3
MD_A4
MD_A5
MD_A6
MD_A7
MD_A8
MD_A9
MD_A10
MD_A11

MD_B[63:0]12 ,15,16

C

VCC

R106

4.7K

FENA

63:0

MD

MD12 MD_A12
MD13
MD14
MD15
MD16
MD17
MD18
MD19
MD20
MD21
MD22
MD23

R296
500

R298
500

R302
500

R306
500

R310
500

R314
500

R295
500

R297
500

R300
500

R304
500

R308
500

R312
500

U4

1

S0

56

S1

55

S2

2

1A1

3

1A2

4

2A1

5

2A2

6

3A1

7

3A2

9

4A1

10

4A2

11

5A1

12

5A2

13

6A1

14

6A2

15

7A1

16

7A2

18

8A1

20

8A2

21

9A1

22

9A2

23

10A1

24

10A2

25

11A1

26

11A2

27

12A1

28

12A2

PI5C16212A

D

VCC

17

VCC

54

1B1

53

1B2
2B1
2B2
3B1
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
8B2
9B1

9B2
10B1
10B2
11B1
11B2
12B1
12B2

GND
GND
GND
GND

MD_B12
52
51

MD_B13
50
48

MD_B14
47
46

MD_B15
45
44

MD_B16
43
42

MD_B17
41
40

MD_B18
39
37

MD_B19
36
35

MD_B20
34
33

MD_B21
32
31

MD_B22
30
29

MD_B23
8

19
38
49

MD_A13
MD_A14
MD_A15
MD_A16
MD_A17
MD_A18
MD_A19
MD_A20
MD_A21
MD_A22
MD_A23

E

MD_A[63:0

MD_B[63:0

FET ENABLE TRUTH TABLE

VCC

17

54
53

MD_B24
52
51

MD_B25
50
48

MD_B26
47
46

MD_B27
45
44

MD_B28
43
42

MD_B29
41
40

MD_B30
39
37

MD_B31
36
35

MD_B32
34
33

MD_B33
32
31

MD_B34
30
29

MD_B35
8

19
38
49

B

MD_A24
MD_A25
MD_A26
MD_A27
MD_A28
MD_A29
MD_A30
MD_A31
MD_A32
MD_A33
MD_A34
MD_A35

MD_A[63:0

MD_B[63:0

C

FUNCTION S2 S1

A1 TO B1, A2 TO B2

HH

A1 TO B1, A2 TO B2

Title

Size Document Number Rev
Custom

Date: Sheet of

D

S0

A1 A2[FENA]

LB1B2

HHH

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA. 95630

FET SWITCHES

B2 B1

DP/4 DIMM Design

Intel(R) 440BX AGPset 1.0

, April 09, 1998

A1 = D RA M DATA LINES
A2 = GND

B1 = D I MM 0,1 DATA LINES
B2 = D I MM 2,3 DATA LINES

11 40Thursda

E

A

(

)

y

[

]

]

[

]

]

[

]MD[

]

]

]

B

C

D

E

FET-SWITCHES (DRAM DATA LINES & ECC)

VCC

VCC

VCC

17

54
53

MD_B36
52
51

MD_B37
50
48

MD_B38
47
46

MD_B39
45
44

MD_B40
43
42

MD_B41
41
40

MD_B42
39
37

MD_B43
36
35

MD_B44
34
33

MD_B45
32
31

MD_B46
30
29

MD_B47
8

19
38
49

MD_A36
MD_A37
MD_A38
MD_A39
MD_A40
MD_A41
MD_A42
MD_A43
MD_A44
MD_A45
MD_A46
MD_A47

MD_B[63:0]11 ,15,16

FENA

R334
500

R338
500

R342
500

R346
500

R350
500

R354
500

63:0

R332
500

R336
500

R340
500

R344
500

R348
500

R352
500

MD48
MD49
MD50
MD51
MD52
MD53
MD54
MD55
MD56
MD57
MD58
MD59

R110

4.7K
U8

1

S0

56

S1

55

S2

2

1A1

3

1A2

4

2A1

5

2A2

6

3A1

7

3A2

9

4A1

10

4A2

11

5A1

12

5A2

13

6A1

14

6A2

15

7A1

16

7A2

18

8A1

20

8A2

21

9A1

22

9A2

23

10A1

24

10A2

25

11A1

26

11A2

27

12A1

28

12A2

PI5C16212A

VCC

1B1
1B2
2B1
2B2
3B1
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
8B2
9B1

9B2
10B1
10B2
11B1
11B2
12B1
12B2

GND
GND
GND
GND

VCC

17

54
53

MD_B48
52
51

MD_B49
50
48

MD_B50
47
46

MD_B51
45
44

MD_B52
43
42

MD_B53
41
40

MD_B54
39
37

MD_B55
36
35

MD_B56
34
33

MD_B57
32
31

MD_B58
30
29

MD_B59
8

19
38
49

MD_A48
MD_A49
MD_A50
MD_A51
MD_A52
MD_A53
MD_A54
MD_A55
MD_A56
MD_A57
MD_A58
MD_A59

63:0

MD_A

MD_B[63:0

FET ENABLE TRUTH TABLE

VCC

MD_B

63:0

17

54
53

MD_B60
52
51

MD_B61
50
48

MD_B62
47
46

MD_B63
45
44

MECC_B0
43
42

MECC_B1
41
40

MECC_B2
39
37

MECC_B3
36
35

MECC_B4
34
33

MECC_B5
32
31

MECC_B6
30
29

MECC_B7
8

19
38
49

B

MD_A60
MD_A61
MD_A62
MD_A63

ME CC_A0
ME CC_A1
ME CC_A2
ME CC_A3
ME CC_A4
ME CC_A5
ME CC_A6
ME CC_A7

MD_A[63:0

MECC_A[7:0]13 ,14,15,16

MECC_B[7:0]13 ,14,15,16

C

FUNCTION S2 S1

A1 TO B1, A2 TO B2

HH

A1 TO B1, A2 TO B2

D

S0

A1 A2[ FENA]

LB1B2

HHH

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA. 95630

Title

Size Document Number Rev
Custom

Date: Sheet of

B2 B1

FET SWITCHES

, April 09, 1998

DP/4 DIMM Design

Intel(R) 440BX AGPset 1.0

A1 = DRAM DATA LINES
A2 = GND

B1 = D I MM 0,1 DATA LINES
B2 = D I MM 2,3 DATA LINES

12 40Thursda

E

MD36
MD37
MD38
MD39
MD40
MD41
MD42
MD43
MD44
MD45
MD46
MD47

VCC

MD60
MD61
MD62
MD63
MECC0
MECC1
MECC2
MECC3
MECC4
MECC5
MECC6
MECC7

R109

4.7K

R111

4.7K

U7

1

S0

56

S1

55

S2

2

1A1

3

1A2

4

2A1

5

2A2

6

3A1

7

3A2

9

4A1

10

4A2

11

5A1

12

5A2

13

6A1

14

6A2

15

7A1

16

7A2

18

8A1

20

8A2

21

9A1

22

9A2

23

10A1

24

10A2

25

11A1

26

11A2

27

12A1

28

12A2

PI5C16212A

U9

1

S0

56

S1

55

S2

2

1A1

3

1A2

4

2A1

5

2A2

6

3A1

7

3A2

9

4A1

10

4A2

11

5A1

12

5A2

13

6A1

14

6A2

15

7A1

16

7A2

18

8A1

20

8A2

21

9A1

22

9A2

23

10A1

24

10A2

25

11A1

26

11A2

27

12A1

28

12A2

PI5C16212A

VCC

1B1
1B2
2B1
2B2
3B1
3B2
4B1
4B2
5B1
5B2
6B1
6B2
7B1
7B2
8B1
8B2
9B1

9B2
10B1
10B2
11B1
11B2
12B1
12B2

GND
GND
GND
GND

VCC

1B1

1B2

2B1

2B2

3B1

3B2

4B1

4B2

5B1

5B2

6B1

6B2

7B1

7B2

8B1

8B2

9B1

9B2
10B1
10B2
11B1
11B2
12B1
12B2

GND
GND
GND
GND

4 4

FENA8,11

MD[63:0

10,11 MD_A[63:0]11 ,13,14

R331
500

R333
500

R335
500

R337
500

R339
500

R341
500

R343
500

R345
500

3 3

2 2

1 1

10

R349
500

R353
500

FENA
MD

R356
500

R358
500

R360
500

R362
500

R364
500

R366
500

MECC[7:0

R347
500

R351
500

63:0

R355
500

R357
500

R359
500

R361
500

R363
500

R365
500

A

A

y

B

C

D

E

DIMM SOCKET 0

VCC3 VCC3

MD_A[63:0]11,12,14

4 4

MD_A0
MD_A1
MD_A2
MD_A3

MD_A5
MD_A6
MD_A7

MD_A8
MD_A9
MD_A10
MD_A11
MD_A12
MD_A13
MD_A14
MD_A15

MD_A32
MD_A33
MD_A34
MD_A35
MD_A36
MD_A37
MD_A38

3 3

MAA[13:0]8,14

DQMA[7:0]8,14,15,16

2 2

MD_A39
MD_A40

MD_A41
MD_A42
MD_A43
MD_A44
MD_A45
MD_A46
MD_A47

MAA0
MAA1
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8
MAA9
MAA10
MAA13

DQMA0
DQMA1
DQMA2
DQMA3
DQMA4
DQMA5
DQMA6
DQMA7

MAA11
MAA12

J4

2

DQ0

3

DQ1

4

DQ2

5

DQ3

7

DQ4

8

DQ5

9

DQ6

10

DQ7

11

DQ8

13

DQ9

14

DQ10

15

DQ11

16

DQ12

17

DQ13

19

DQ14

20

DQ15

86

DQ32

87

DQ33

88

DQ34

89

DQ35

91

DQ36

92

DQ37

93

DQ38

94

DQ39

95

DQ40

97

DQ41

98

DQ42

99

DQ43

100

DQ44

101

DQ45

103

DQ46

104

DQ47

33

A0

117

A1

34

A2

118

A3

35

A4

119

A5

36

A6

120

A7

37

A8

121

A9

38

A10 (AP)

123

A11

126

A12

132

A13

28

DQMB0

29

DQMB1

46

DQMB2

47

DQMB3

112

DQMB4

113

DQMB5

130

DQMB6

131

DQMB7

122

BA0

39

BA1

24

NC

25

NC

31

NC

44

NC

48

NC

50

NC

51

NC

61

NC

80

NC

81

NC

109

NC

108

NC

145

NC

SDRAM DIMM

40

102

18

VCC6VCC26VCC

VCC41VCC90VCC

VCC

VSS1VSS

VSS23VSS32VSS85VSS96VSS

VSS43VSS54VSS64VSS68VSS78VSS

12

124

110

VCC

VCC

VCC49VCC59VCC73VCC84VCC

VSS

VSS

107

116

127

138

143

157

168

133

VCC

VSS

VSS

148

152

162

VSS

VCC

VCC

DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23

DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31

DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55

DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63

REGE

CKE0
CKE1

CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7

SDA
SCL

/WE0
/CAS

/RAS

CK0
CK1
CK2
CK3

SA0
SA1
SA2

55

MD_A16
MD_A17

56

MD_A18

57
58

MD_A19
MD_A20MD_A4

60
65

MD_A21

66

MD_A22

67

MD_A23
MD_A24

69

MD_A25

70
71

MD_A26
MD_A27

72
74

MD_A28
MD_A29

75
76

MD_A30

77

MD_A31
MD_A48

139

MD_A49

140
141

MD_A50

142

MD_A51

144

MD_A52

149

MD_A53
MD_A54

150
151

MD_A55
MD_A56

153
154

MD_A57
MD_A58

155
156

MD_A59

158

MD_A60

159

MD_A61

160

MD_A62
MD_A63

161
134

NC

135

NC

146

NC

164

NC

62

NC

147
128
63

MECC_A0

21

MECC_A1

22

MECC_A2

52

MECC_A3

53

MECC_A4

105

MECC_A5

106

MECC_A6

136

MECC_A7

137

165

SLA VE ADDRESS

166

= 1010000b

167
82

83

CS_A#0

30

/S0
/S1
/S2
/S3

CS_A#1

114

CS_B#0

45

CS_B#1

129
27
111
115

42
125
79
163

DCLK12
DCLK13
DCLK14
DCLK15

**NOTE ON ALL DIMM SOCKETS**
Pin 147 should be pulled to a high state
to accommodate registered DIMMs.

VCC3

R367
0 ohm

**NOTE** If GCKE is not used

B_CKE0 10

then each CKE requires a

B_CKE1 10

22K pullup to VCC3.

MECC_A[7:0] 12,14,15,16

SMBDATA 3,5,8,15,16,18,34,39
SMBCLK 3,5,8,15,16,18,34,39

CS_A#[1:0] 8
CS_B#[1:0] 8

WE_A# 8,14
SCAS_A# 8,14
SRAS_A# 8,14

DCLK[15:0] 8,14,15,16

1 1

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

DIMM SOCKET 0

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

, April 09, 1998

13 40Thursda

E

1.0

A

y

B

C

D

E

DIMM SOCKET 1

VCC3 VCC3

MD_A[63:0]11,12,13

4 4

MD_A0 MD_A16
MD_A1 MD_A17
MD_A2 MD_A18
MD_A3 MD_A19
MD_A4 MD_A20
MD_A5 MD_A21
MD_A6 MD_A22
MD_A7 MD_A23

MD_A8 MD_A24
MD_A9 MD_A25
MD_A10 MD_A26
MD_A11 MD_A27
MD_A12 MD_A28
MD_A13 MD_A29
MD_A14 MD_A30
MD_A15 MD_A31

MD_A32 MD_A48
MD_A33 MD_A49
MD_A34 MD_A50
MD_A35 MD_A51
MD_A36 MD_A52
MD_A37 MD_A53
MD_A38 MD_A54

3 3

MAA[13:0]8,13

DQMA[7:0]8,13,15,16

2 2

MD_A39 MD_A55
MD_A40 MD_A56

MD_A41 MD_A57
MD_A42 MD_A58
MD_A43 MD_A59
MD_A44 MD_A60
MD_A45 MD_A61
MD_A46 MD_A62
MD_A47 MD_A63

MAA0
MAA1
MAA2
MAA3
MAA4
MAA5
MAA6
MAA7
MAA8
MAA9
MAA10
MAA13

DQMA0
DQMA1
DQMA2
DQMA3
DQMA4
DQMA5
DQMA6
DQMA7

MAA11
MAA12

J5

2

DQ0

3

DQ1

4

DQ2

5

DQ3

7

DQ4

8

DQ5

9

DQ6

10

DQ7

11

DQ8

13

DQ9

14

DQ10

15

DQ11

16

DQ12

17

DQ13

19

DQ14

20

DQ15

86

DQ32

87

DQ33

88

DQ34

89

DQ35

91

DQ36

92

DQ37

93

DQ38

94

DQ39

95

DQ40

97

DQ41

98

DQ42

99

DQ43

100

DQ44

101

DQ45

103

DQ46

104

DQ47

33

A0

117

A1

34

A2

118

A3

35

A4

119

A5

36

A6

120

A7

37

A8

121

A9

38

A10 (AP)

123

A11

126

A12

132

A13

28

DQMB0

29

DQMB1

46

DQMB2

47

DQMB3

112

DQMB4

113

DQMB5

130

DQMB6

131

DQMB7

122

BA0

39

BA1

24

NC

25

NC

31

NC

44

NC

48

NC

50

NC

51

NC

61

NC

80

NC

81

NC

109

NC

108

NC

145

NC

SDRAM DIMM

40

102

18

VCC6VCC26VCC

VCC41VCC90VCC

VCC

VSS1VSS

VSS23VSS32VSS85VSS96VSS

VSS43VSS54VSS64VSS68VSS78VSS

12

110

VCC

124

VCC

VCC49VCC59VCC73VCC84VCC

VSS

VSS

107

116

127

138

148

VSS

143

157

168

133

VCC

VSS

152

162

VSS

VCC

VCC

DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23

DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31

DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55

DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63

REGE
CKE0
CKE1

CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7

SA0
SA1
SA2

SDA
SCL

/WE0
/CAS
/RAS

CK0
CK1
CK2
CK3

55
56
57
58
60
65
66
67

69
70
71
72
74
75
76
77

139
140
141
142
144
149
150
151

153
154
155
156
158
159
160
161

134

NC

135

NC

146

NC

164

NC

62

NC

147
128
63

MECC_A0

21

MECC_A1

22

MECC_A2

52

MECC_A3

53

MECC_A4

105

MECC_A5

106

MECC_A6

136

MECC_A7

137

R_SA0

165
166
167

82
83

CS_A#2

30

/S0
/S1
/S2
/S3

CS_A#3

114

CS_B#2

45

CS_B#3

129
27
111
115

DCLK8

42

DCLK9

125

DCLK10

79

DCLK11

163

**NOTE ON ALL DIMM SOCKETS**
Pin 147 should be pulled to a high state
to accommodate registered DIMMs.

VCC3

R368
0 ohm

**NOTE** If GCKE is not used
then each CKE requires a 22K
pullup to VCC3.

B_CKE2 10
B_CKE3 10
MECC_A[7:0] 12,13,15,16

VCC3

R114

4.7K

SLAVE ADDRESS = 1010001b

SMBDATA 3,5,8,15,16,18,34,39
SMBCLK 3,5,8,15,16,18,34,39

CS_A#[3:2] 8
CS_B#[3:2] 8

WE_A# 8,13
SCAS_A# 8,13
SRAS_A# 8,13

DCLK[15:0] 8,13,15,16

1 1

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

DIMM SOCKET 1

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

, April 09, 1998

14 40Thursda

E

1.0

A

B

C

D

E

DIMM SOCKET 2

VCC3VCC3

4 4

3 3

2 2

MD_B[63:0]11,12,16

J6

40

102

18

MD_B0
MD_B1 MD_B17
MD_B2
MD_B3
MD_B4
MD_B5
MD_B6
MD_B7

MD_B8
MD_B9
MD_B10
MD_B11
MD_B12
MD_B13
MD_B14
MD_B15

MD_B32
MD_B33
MD_B34
MD_B35
MD_B36
MD_B37
MD_B38
MD_B39

MD_B40
MD_B41
MD_B42
MD_B43
MD_B44
MD_B45
MD_B46

DQMA0
DQMA2

DQMA3
DQMA4

DQMA6
DQMA7

MAB#11
MAB#12

MD_B47

MAB#0
MAB#1
MAB#2
MAB#3
MAB#4
MAB#5
MAB#6
MAB#7
MAB#8
MAB#9
MAB10
MAB13

MAB#[13:0]8,16

DQMA[7:0]8,13,14,16

DQMB18,16

DQMB58,16

2

DQ0

3

DQ1

4

DQ2

5

DQ3

7

DQ4

8

DQ5

9

DQ6

10

DQ7

11

DQ8

13

DQ9

14

DQ10

15

DQ11

16

DQ12

17

DQ13

19

DQ14

20

DQ15

86

DQ32

87

DQ33

88

DQ34

89

DQ35

91

DQ36

92

DQ37

93

DQ38

94

DQ39

95

DQ40

97

DQ41

98

DQ42

99

DQ43

100

DQ44

101

DQ45

103

DQ46

104

DQ47

33

A0

117

A1

34

A2

118

A3

35

A4

119

A5

36

A6

120

A7

37

A8

121

A9

38

A10 (AP)

123

A11

126

A12

132

A13

28

DQMB0

29

DQMB1

46

DQMB2

47

DQMB3

112

DQMB4

113

DQMB5

130

DQMB6

131

DQMB7

122

BA0

39

BA1

24

NC

25

NC

31

NC

44

NC

48

NC

50

NC

51

NC

61

NC

80

NC

81

NC

109

NC

108

NC

145

NC

SDRAM DIMM

VCC6VCC26VCC

VCC

VSS1VSS

124

110

VCC41VCC90VCC

VCC

VCC

VSS23VSS32VSS85VSS96VSS

VSS43VSS54VSS64VSS68VSS78VSS

12

VCC49VCC59VCC73VCC84VCC

VSS

VSS

107

116

127

138

148

133

VSS

152

143

VCC

VSS

162

VSS

157

VCC

168

DQ16
DQ17

VCC

DQ18
DQ19
DQ20
DQ21
DQ22
DQ23

DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31

DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55

DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63

REGE

CKE0
CKE1

/WE0
/CAS
/RAS

NC
NC
NC
NC
NC

CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7

SA0
SA1
SA2

SDA
SCL

/S0
/S1
/S2
/S3

CK0
CK1
CK2
CK3

55
56
57
58
60
65
66
67

69
70
71
72
74
75
76
77

139
140
141
142
144
149
150
151

153
154
155
156
158
159
160
161

134
135
146
164
62

147
128
63

21
22
52
53
105
106
136
137

165
166
167

82
83

30
114
45
129
27
111
115

42
125
79
163

MD_B16
MD_B18

MD_B19
MD_B20
MD_B21
MD_B22
MD_B23

MD_B24
MD_B25
MD_B26
MD_B27
MD_B28
MD_B29
MD_B30
MD_B31

MD_B48
MD_B49
MD_B50
MD_B51
MD_B52
MD_B53
MD_B54
MD_B55

MD_B56
MD_B57
MD_B58
MD_B59
MD_B60
MD_B61
MD_B62
MD_B63

MECC_B0
MECC_B1
MECC_B2
MECC_B3
MECC_B4
MECC_B5
MECC_B6
MECC_B7

R_SA1

CS_A#4
CS_A#5
CS_B#4
CS_B#5

DCLK4
DCLK5
DCLK6
DCLK7

R116

4.7K

**NOTE ON ALL DIMM SOCKETS**

VCC3

Pin 147 should be pulled to a
high state to accommodate
registered DIMMs.

R369
0 ohm

**NOTE** If GCKE is not used
then each CKE requires a 22K
pullup to VCC3.

B_CKE4 10
B_CKE5 10
MECC_B[7:0] 12,13,14,16

VCC3

Slave address = 1010010b

SMBDATA 3,5,8,16,18,34,39
SMBCLK 3,5,8,16,18,34,39

CS_A#[5:4] 8
CS_B#[5:4] 8

WE_B# 8,16
SCAS_B# 8,16
SRAS_B# 8,16

DCLK[15:0] 8,13,14,16

1 1

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

DIMM SOCKET 2

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

15 40Thursday, April 09, 1998

E

1.0

A

B

C

D

E

DIMM SOCKET 3

VCC3VCC3

4 4

3 3

100/66#3,5,7

R119
10K

2 2

R120
10K

JP16

IOQ DEPTH SEL

MAB#12

MAB#11

MAB#11: 1 = IOQ depth of 4 (default), 0 = IOQ depth of 1

MD_B[63:0]11,12,15

J7

40

102

18

MD_B0
MD_B1
MD_B2
MD_B3
MD_B4
MD_B5
MD_B6
MD_B7

MD_B8
MD_B9
MD_B10
MD_B11
MD_B12
MD_B13
MD_B14
MD_B15

MD_B32
MD_B33

MD_B35
MD_B36
MD_B37
MD_B38
MD_B39

MD_B40
MD_B41
MD_B42
MD_B43
MD_B44
MD_B45
MD_B46

DQMA0
DQMA2

DQMA3
DQMA4

DQMA6
DQMA7

MAB#11
MAB#12

MD_B47

MAB#0
MAB#1
MAB#2
MAB#3
MAB#4
MAB#5
MAB#6
MAB#7
MAB#8
MAB#9
MAB10
MAB13

MAB#[13:0]8,15

DQMA[7:0]8,13,14,15

DQMB18,15

DQMB58,15

2

DQ0

3

DQ1

4

DQ2

5

DQ3

7

DQ4

8

DQ5

9

DQ6

10

DQ7

11

DQ8

13

DQ9

14

DQ10

15

DQ11

16

DQ12

17

DQ13

19

DQ14

20

DQ15

86

DQ32

87

DQ33

88

DQ34

89

DQ35

91

DQ36

92

DQ37

93

DQ38

94

DQ39

95

DQ40

97

DQ41

98

DQ42

99

DQ43

100

DQ44

101

DQ45

103

DQ46

104

DQ47

33

A0

117

A1

34

A2

118

A3

35

A4

119

A5

36

A6

120

A7

37

A8

121

A9

38

A10 (AP)

123

A11

126

A12

132

A13

28

DQMB0

29

DQMB1

46

DQMB2

47

DQMB3

112

DQMB4

113

DQMB5

130

DQMB6

131

DQMB7

122

BA0

39

BA1

24

NC

25

NC

31

NC

44

NC

48

NC

50

NC

51

NC

61

NC

80

NC

81

NC

109

NC

108

NC

145

NC

SDRAM DIMM

VCC6VCC26VCC

VCC

VSS1VSS

124

110

VCC41VCC90VCC

VCC

VCC

VSS23VSS32VSS85VSS96VSS

VSS43VSS54VSS64VSS68VSS78VSS

12

VCC49VCC59VCC73VCC84VCC

VSS

VSS

107

116

127

138

148

133

VSS

152

143

VCC

VSS

162

VSS

157

VCC

168

DQ16
DQ17

VCC

DQ18
DQ19
DQ20
DQ21
DQ22
DQ23

DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31

DQ48
DQ49
DQ50
DQ51
DQ52
DQ53
DQ54
DQ55

DQ56
DQ57
DQ58
DQ59
DQ60
DQ61
DQ62
DQ63

REGE

CKE0
CKE1

/WE0
/CAS
/RAS

NC
NC
NC
NC
NC

CB0
CB1
CB2
CB3
CB4
CB5
CB6
CB7

SA0
SA1
SA2

SDA
SCL

/S0
/S1
/S2
/S3

CK0
CK1
CK2
CK3

55
56
57
58
60
65
66
67

69
70
71
72
74
75
76
77

139
140
141
142
144
149
150
151

153
154
155
156
158
159
160
161

134
135
146
164
62

147
128
63

21
22
52
53
105
106
136
137

165
166
167

82
83

30
114
45
129
27
111
115

42
125
79
163

MD_B16
MD_B17
MD_B18
MD_B19
MD_B20
MD_B21
MD_B22
MD_B23

MD_B24
MD_B25
MD_B26
MD_B27
MD_B28
MD_B29
MD_B30
MD_B31

MD_B48
MD_B49
MD_B50MD_B34
MD_B51
MD_B52
MD_B53
MD_B54
MD_B55

MD_B56
MD_B57
MD_B58
MD_B59
MD_B60
MD_B61
MD_B62
MD_B63

MECC_B0
MECC_B1
MECC_B2
MECC_B3
MECC_B4
MECC_B5
MECC_B6
MECC_B7

CS_A#6
CS_A#7
CS_B#6
CS_B#7

DCLK0
DCLK1
DCLK2
DCLK3

VCC3

**NOTE ON ALL DIMM SOCKETS**
Pin 147 should be pulled to a
high state to accommodate

R370

registered DIMMs.

0 ohm

**NOTE** If GCKE is not
used then each CKE
requires a 22K pullup to

B_CKE6 10
B_CKE7 10

MECC_B[7:0] 12,13,14,15

VCC3

VCC3.

R121

Slave address =

4.7K

1010011b

SMBDATA 3,5,8,15,18,34,39
SMBCLK 3,5,8,15,18,34,39

CS_A#[7:6] 8
CS_B#[7:6] 8

WE_B# 8,15
SCAS_B# 8,15
SRAS_B# 8,15

DCLK[15:0] 8,13,14,15

1 1

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

DIMM SOCKET 3

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

16 40Thursday, April 09, 1998

E

1.0

A

(

)

y

]

]

]

]

]

]

AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9

R_ AD18

AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31

C/BE#0
C/BE#1
C/BE#2
C/BE#3

PREQ#1
PREQ#2
PREQ#3

SDA0
SDA1
SDA2

PDA0
PDA1
PDA2

PDD0
PDD1
PDD2
PDD3
PDD4
PDD5
PDD6
PDD7
PDD8
PDD9
PDD10
PDD11
PDD12
PDD13
PDD14
PDD15

4 4

AD[31:0

9,22,23

3 3

2 2

1 1

C/BE#[3:0

9,22,23

DE VSEL#9,22,23,34

FRAME#9,2 2,23,34

9,2 2,23,34

25

25

A

IRDY#9, 2 2,23,34
PCIRST#8,2 1,22,23

PHLD#9,34

PHLDA#9,34

SERR#9,2 2,23,34
STOP#9 , 2 2,23,34

TRDY#9,22,23,34

PREQ#[3:0

SDA[2:0

25

PDDACK#25
SDDACK#25
PDREQ25
SDREQ25
PDIOR#25

PDIOW#25
PIORDY25
SDIOR#25
SDIOW#25
SIORDY25

PDA[2:0

PDD[15:0

PAR9 ,22,23

R371
100

R122
100

AD18 PREQ#0

B10

A10

C10

B12

A12

E10

A11
B11
C11

C17
B17

A18
G19

A17

F18

A16

F17

F16
G20
C16
B16
D16
G16
G18
G17

F20
E18
E20
D18
D20
C20
B20

A20

A19
B19
C19
D19
D17
E19
E17

F19

D9
C9
B9

A9
D8
E8
B8

A8
D7
C7
B7

A7
D6
E6
E4
C4
B4

A4
D3
E3
C3
B3
E2
C2
B2

A2
D1
E1
C1
B1

C8
C6
D4
D2

E5

A5

A3
B5
B6

A1

A6
D5
C5

B

U10A

AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD16
AD17
AD18
AD19
AD20
AD21
AD22
AD23
AD24
AD25
AD26
AD27
AD28
AD29
AD30
AD31

C/BE#0
C/BE#1
C/BE#2
C/BE#3

CLOCKRUN#
DE VSEL#
FRAME#
IDSEL
IRDY#
PAR
PCIRST#
PHOLD#
PHOLDA#
SERR#
STOP#
TRDY#

REQ0#
REQ1#
REQ2#
REQ3#

SDA0
SDA1
SDA2
PDDACK#
SDDACK#
PDREQ
SDREQ
PDIOR#
PDIOW#
PIORDY
SDIOR#
SDIOW#
SIORDY
PDA0
PDA1
PDA2

PDD0
PDD1
PDD2
PDD3
PDD4
PDD5
PDD6
PDD7
PDD8
PDD9
PDD10
PDD11
PDD12
PDD13
PDD14
PDD15

PIIX4_15

B

PCI BUS INTERFACE

82371EB

IDE SIGNALS

C

E15

SDD0

B15

SDD1

D14

SDD2

C14

SDD3

A14

SDD4

C13

SDD5

A13

SDD6

C12

SDD7

D12

SDD8

B13

SDD9

D13

SDD10

B14

SDD11

E14

SDD12

A15

SDD13

C15

SDD14

D15

SDD15

IDE SIGNALS

ISA/EIO SIGNALS

MEMCS16#

REFRESH#

ZEROWS#

C

SCS3#
PCS3#
SCS1#
PCS1#

SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8

SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19

SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8

SD9
SD10
SD11
SD12
SD13
SD14
SD15

LA17
LA18
LA19
LA20
LA21
LA22
LA23

MEMR#

MEMW#

SMEMR#

SMEMW#

SYSCLK

BALE

IOCHK#

IOCS16#

SBHE#

RSTDRV

IOR#

IOW#

IOCHRDY

AEN

C18
H16
B18
H17

U11
T11
W11
Y11
T10
W10
U9
V9
Y9
T8
W8
U7
V7
Y7
V6
Y6
T5
W5
U4
V4

V3
W3
U2
T2
W2
Y2
T1
V1
W16
T16
Y17
V17
Y18
W18
Y19
W19

Y15
T14
W14
U13
V13
Y13
T12

Y12
V15
U15
W4

U3
T7
U10
Y1

W7
V12
Y3

W12
W1
Y5
T4
T3
Y4

SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15
SA16
SA17
SA18
SA19

SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15

LA17
LA18
LA19
LA20
LA21
LA22
LA23

D

SDD0
SDD1
SDD2
SDD3
SDD4
SDD5
SDD6
SDD7
SDD8
SDD9
SDD10
SDD11
SDD12
SDD13
SDD14
SDD15

SA[19:0]19,20,24,27,35,39

SD[15:0]20 ,24,35

LA[23:17]24,35
MEMCS16# 24,35
MEMR# 1 9,24,27,35
MEMW# 19 ,24,27,35
SMEMR# 24

SMEMW# 24
SY S CLK 24,39
BALE 24
IOCHK# 24,35

REFRESH# 24,35
IOCS16# 24,35
ZEROWS# 24,35

SBHE# 24
RSTDRV 20,32
IOR# 20, 24,35,39
IOW# 20, 24,35,39
IOCHRDY 20,24,35
AEN 20,24

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev
Custom

Date: Sheet of

D

82371EB

PART I

, April 09, 1998

SDD[15:0]25
SCS3# 25
PCS3# 25
SCS1# 25
PCS1# 25

Intel(R) 440BX AGPset 1.0

E

17 40Thursda

E

A

B

3VSB

VCC3

VCC3

VCC3

C

D

E

DACK#[3:0]20,24

4 4

3 3

2 2

R129

VB2

1K

D3
SCHOTTKY

BAR43

VB1
12

BT1

1 1

1 -2 NORMAL

DACK#[7:5]24

APICACK#19
APICCS#19,34

APICREQ#19,34

3VSB

D2
SCHOTTKY

BAR43

C15

0.1 uF

R131

1K

CLEAR CMOS

JP6 CONFIG

DRQ020,24,35
DRQ120,24,35
DRQ220,24,35
DRQ320,24,35
DRQ524,35
DRQ624,35
DRQ724,35

REQ#A34
REQ#B34
REQ#C34

TC20,24

IRQ019
IRQ119,20,35
IRQ319,20,24,35
IRQ419,20,24,35
IRQ519,20,24,35
IRQ619,20,24,35
IRQ719,20,24,35
IRQ#819,35
IRQ919,20,24,35
IRQ1019,20,24,35

IRQ1119,20,24,35
IRQ1219,20,24,35
IRQ1419,20,24,25,35
IRQ1519,20,24,25,35

GPI734

PIRQ#A19,21,22,23,34
PIRQ#B19,21,22,23,34
PIRQ#C19,22,23,34
PIRQ#D19,22,23,34

PX4_IGNNE#33,34

1
3

CMOS_CLR

PX4_INTR19,33,34
A20GATE20,34
PX4_NMI33,34
PX4_SMI#19,34

PX4_A20M#33,34

JP17

2

FERR#3,5,34
HINIT#3,5,34

KBRST#20,34
PWROK9,32

SPKR32

TEST#34

RTC_BAT

R287
0

32.768KHz

Y2

C16
18pF

PIRQ#A
PIRQ#B
PIRQ#C
PIRQ#D

BIOSCS#27

DACK#0
DACK#1
DACK#2
DACK#3
DACK#5
DACK#6
DACK#7

XOE#20
XDIR#20

RTCX2
RTCX1

48Mhz_07

OSC27

PXPCLK7

12

C17
18pF

U10B

U14

DACK0#

W6

DACK1#

Y10

DACK2#

V5

DACK3#

T15

DACK5#

V16

DACK6#

W17

DACK7#

W15

DREQ0

U6

DREQ1

V2

DREQ2

U5

DREQ3

Y16

DREQ5

U16

DREQ6

U17

DREQ7

M1

REQA#/GPI2

N2

REQB#/GPI3

P3

REQC#/GPI4

N1

GNTA#/GPO9

P2

GNTB#/GPO10

P4

GNTC#/GPO11

V10

TC

J17

APICACK#/GPO12

H18

APICCS#/GPO13

K18

APICREQ#/GPI5

H20

IRQ0/GPO14

J20

IRQ1

T9

IRQ3

W9

IRQ4

U8

IRQ5

V8

IRQ6

Y8

IRQ7

Y20

IRQ8/GPI6

U1

IRQ9

U12

IRQ10

W13

IRQ11

T13

IRQ12

V14

IRQ14

Y14

IRQ15

J19

SERIRQ/GPI7

R3

PIRQA#

R4

PIRQB#

P5

PIRQC#

G1

PIRQD#

M19

CPURST

K19

FERR#

L17

IGNNE#

L18

INIT

L19

INTR

P1

A20GATE

L20

NMI

P20

PX4_SMI#

N20

RCIN#

M20

A20M#

M18

PWROK

K17

SPKR

V18

TEST#

M4

XOE#/GPO23

M3

XDIR#/GPO22

M2

BIOSCS#

L1

RTCALE/GPO25

K2

RTCCS#/GPO24

K1

KBCCS#/GPO26

L16

VBAT

R20

RTCX2

N19

RTCX1

L3

48Mhz

V11

OSC

D11

PCICLK

PIIX4_15

F6

DMA SIGNALS

IRQ SIGNALS

CPU INTERFACE

X-BUS

VSS

VSSE7VSS

VSSJ9VSS

J10

E13

D10

E12

VCC

F15

VCC

R15

VCCR6VCC

E16

VCCPE9VCCP

VCCP

E11

VCC

82371EB

VSS

VSS

VSSK9VSS

VSS

VSS

VSSL9VSS

J11

J12

L10

K10

K11

K12

VCCPF5VCCP

VSS

L11

2 - 3 CLEAR CMOS

A

B

F14

VCCPG6VCCPR7VCCP

VSS

VSSM9VSS

L12

M10

P15

M11

VSS

T6

VCCP

VSS

M12

R16

N16

K5

VCCSUS

VCCSUS

VSS_USB

J5

VCCUSB

USBP1+

USBP1-

USBP0+

USBP0-

USB

EXTSMI#

SUSA#

GPO15/SUSB#

GPO16/SUSC#

GPO17/CPU_STP#

GPO18/PCI_STP#

GPO19/ZZ

GPI8/THERM#

GPI9/BATLOW#

RSMRST#

PWRBT#

GPI10/LID

SMBDATA

SMBCLK

GPI11/SMBALERT#

GPI12/RI#A

POWER MANAGEMENT

SUSCLK
GPO20/SUS_STAT1#
GPO21/SUS_STAT2#

STPCLK#

SLP#

VREF

GPI1
GPI13
GPI14
GPI15
GPI16
GPI17
GPI18
GPI19
GPI20
GPI21

GPO0

GPO8
GPO27
GPO28
GPO29
GPO30

GPO/GPI/GPIO/SCAN

MCCS#

PGCS0#
PGCS1#

CONFIG1
CONFIG2

C

OC0
OC1

N/C
N/C
N/C
N/C
N/C
N/C

F1
H2
G2
H3
J1
J2

V20
W20
V19
U18

R1
R2
K16

H19
U19
M17
U20
P16
T20
R19
N17
P18

P17
T17
T18
J18
K20

J16

P19
L2
J3
L5
K3
K4
H1
H4
H5
G3

G4
T19
G5
F2
F3
F4

N4
L4

N5
J4

N18
N3
M5
M16
R5

R17
R18

GPI13
GPI14
GPI15
GPI16
GPI17
GPI18
GPI19
GPI20

GPO0
GPO8
GPO27
GPO28

PGCS#0
PGCS#1

R130

8.2K

SUSC#

PS_POK32

PX4_CFG1 34

USBP1+ 26
USBP1- 26
USBP0+ 26
USBP0- 26
OC#0 26
OC#1 26

EXTSMI# 34,39
SUSA# 7

CPU_STP# 7
PCI_STP# 7

THERM# 3,5,34
BATLOW# 34
RSMRST# 32
PWRBT# 32
LID 32,34
SMBDATA 3,5,8,15,16,34,39
SMBCLK 3,5,8,15,16,34,39
SMBALERT# 34
AGP_PME# 21,34

SUSTAT# 9
STPCLK# 3,5,34

SLP# 3,5,34

PCI_PME# 22,23,34

GPI[20:13] 34

GPI21 29

FAN_LED 32

1

TP3

1

TP4

IRQ9OUT 19

1

TP5

PGCS#1 34,39

R388

1K

R389

1.5K

5VSB

14

U30B

3 4

7

74HCT14

+

5VSB

SUSC#

3VSB 5VSB

U11F

14

13 12

C12

7

0.01 uF

RTC_BAT

C13

1.0 uF

GPO8#

D

VCC3

C113

0.1uF

74LVC14

D1
SCHOTTKY

BAR43

C14

0.1 uF

5VSB

U22C

14

9
10
11

7

74HC10

16

VCC

3

J

1

CLK

2

K

8

GND

5VSB

JP29 CONFIG.

JP29

3
1

JMP_3P

3

1

3

1

Q

PR

Q

CL

74HC112

U32B

9

7

1-2

2-3

2

Q8

Q6

E

2N7002
2

2N7002
2

SAVE STATE ON
POWER DOWN.

PIIX4 POWERS ON SYS.
AT POWER-UP.

R413
10K

U36A

14
1 2

7

74F07

**External logic shown
is used to handle
power loss condition.

VCC

R128
1K

VREF5V 9

5VSB

SPS2

8.2K
R414

4

PR

CL

15

SPS3

8

U32A

5

Q

6

Q

74HC112

JK_CLR

R288

8.2K

RTC_BAT

R286
10K

10K
R387

10

16

VCC

11

J

13

CLK

12

K

8

GND

14

RSMRST#

INTEL CORPORATION
PL A TFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

82371EB (PART II)

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

B_SUSC 32

WOLLID 32

POWER-ON 32

2

18 40Thursday, April 09, 1998

5VSB

10K
R415

3

1

Q5
2N7002

1.0

A

y

]

B

C

D

E

IOAPIC

4 4

U34

2

PCLKAPIC7
APICCLK7

CRESET33
APICCS#18,34

APICACK#18
WSC#9
MEMR#17,24,27,35
MEMW#17, 24,27,35

SA017,20,24,27,35,39
SA117,20,24,27,35,39

3 3

VCC

1

2 2

PU

4.7K

RP1

18 ,20,24,35

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

CR S T_STBY33

IRQ#818,35

SA41 7 , 20,24,27,35

PX 4_INTR1 8 ,33,34
IRQ[7:1
IRQ018

IRQ918,20,24,35

IRQ1018 , 20,24,35

IRQ1118 , 20,24,35

IRQ1218 , 20,24,35

IRQ1418, 20,24,25,35

IRQ1518,20,24,25,35

PIRQ#A18, 21,22,23,34

PIRQ#B18 ,21,22,23,34

PIRQ#C18, 22,23,34

PIRQ#D18, 22,23,34

IRQ9OUT18

PX4_SMI#18,34

PU_I13PU_I13
PU_TSTIN

3VSB

1

14

2 3

7

U13A

74LVC125

IRQ1
IRQ3

IRQ4
IRQ5
IRQ6
IRQ7

APC_I8

PU_I21
PU_I22

APC_I8

62
60

61
10

8
12
11

13
14
15

17
34
35
25
26
27
28
29
31
30
24
23
22
16
18
21

37
38
39
40
41
42
43
44

3

CLK
APICCLK

RESET
CS-

APICACK1­APICACK2­RD­WR-

A0
A1
D/I-

INTIN0
INTIN1
INTIN2
INTIN3
INTIN4
INTIN5
INTIN6
INTIN7
INTIN8
INTIN9
INTIN10
INTIN11
INTIN12
INTIN13
INTIN14
INTIN15

INTIN16
INTIN17
INTIN18
INTIN19
INTIN20
INTIN21
INTIN22
INTIN23

TESTIN-

82093AA

82093AA

VCC

51

VCC19VCC

VCC PINS :

19, 51, 64

GND PINS :

1, 33, 52

GND

GND

1

33

64

52

VCC

GND

APICREQ-

SMIOUT-

NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

APICD0
APICD1

D0
D1
D2
D3
D4
D5
D6
D7

9
6
7

20
32

PX4_SMI#
36
45
46
47
48
49
63

4
5

59
58
57
56
55
54
53
50

JP19 SMI SOURCE
1 - 2
3 - 4

XD0
XD1
XD2
XD3
XD4
XD5
XD6
XD7

1
3

APICREQ# 18,34
APC_SMI# 34

JP18

2

APIC SMI
PIIX4 SMI

PIC D0 3,5,34
PIC D1 3,5,34

XD[7:0]20 ,27,39

HSMI# 3,5

**NOTE** JP18 is used for
validation purposes and
will not be necessary on
production boards.

1 1

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

IOAPIC

Size Document Number Rev
Custom

Thursda

Date: Sheet of

Intel(R) 440BX AGPset 1.0

, April 09, 1998

E

19 40

1

(

)

y

(

)

y

]

]

]

]

]

]

A A

18 ,24,35

18,24

VCC

18, 19,24,35

B B

17,19,24,27,35,39

C C

D D

19 ,27,39

R374
10K

SA[19:0

VCC

R133

8.2K

VCC

1 8
2 7
3 6
4 5

KBCLK#30
KB DAT#30
MSCLK#30
MSDAT#30

XD[7:0

XOE#18

XD IR#18

1

DRQ[7:0

DACK#[3:0

IRQ[7:0

IRQ918,19,24,35
IRQ1018 , 19,24,35
IRQ1118 , 19,24,35
IRQ1218 , 19,24,35
IRQ1418,19,24,25,35
IRQ1518,19,24,25,35

RP2

4.7K

2

17,24,35

TC18,24

2

OSC37
IOR#17,24,35,39
IOW#1 7 ,24,35,39

AEN17,24

RSTDRV17,32
IOCHRDY17,24,35
SD[15:0

Stuff for 93XFR

VCC

R405
0

TP10
TP11
TP12
TP14
TP16

TP17
TP19

TP21

3

3

4

U14

121

VBAT

122

XTAL1

124

XTAL2

22

14C LOCKI

68

IOR#

69

IOW#

70

AEN

80

RSTDRV

90

IOCHRDY

R406

1K

111
112
113
114
115
116
117
118

119
120

72
73
74
75
76
77
78
79

89
82

84
86
88

81
83
85
87

67
66
65
64
63
62
61
59
58
57
56
55
54

41
42
43
44
45
46
47
48
49
50
51
52
53
27
28
29

26
23
24
25
30
31

34
33
32

92
91
94
93

SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7

TC
DRQ0

DRQ1
DRQ2
DRQ3

DACK0
DACK1
DACK2
DACK3

IRQ1
IRQ3

FDC37C932FR

IRQ4
IRQ5

160 PIN QFP

IRQ6
IRQ7
IRQ8#
IRQ9
IRQ10
IRQ11
IRQ12
IRQ14
IRQ15

SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA1 2/CS
SA13/HDCS2#
SA14/HDCS3#
SA15/IDE2_IRQ

IDE1_IRQ
IDE1_OE#
HDCS0#
HDCS1#
IOROP#
IOWOP#

IDE_A0
IDE_A1
IDE_A2

KCLK
KDAT
MSCLK
MSDAT

RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7

ROMCS#
RO M DIR#

FDC37C932FR_1.3

SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7

DRQ0
DRQ1
DRQ2 TP090
DRQ3

DACK#0
DACK#1
DACK#2
DACK#3

IRQ1
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
B_IRQ#8
IRQ9
IRQ10
IRQ11
IRQ12
IRQ14
IRQ15

SA0
SA1
SA2
SA3
SA4
SA5
SA6
SA7
SA8
SA9
SA10
SA11
SA12
SA13
SA14
SA15

SIO _PU2

1

TP080

1

TP081

1

TP082 TP092

1

TP083 TP091

1

TP084

1

TP079 TP073

1

TP078 TP072

1

TP085 TP087

XD0
XD1
XD2
XD3
XD4
XD5
XD6
XD7

Stuff for 93XFR

VCC21VCC60VCC

101

125

1

139

VCC

5

VCC

14CLK01
14CLK02

VCC

14CLK03

WDATA#
WGATE#

DSKCHG#

DRVSEL0#
DRVSEL1#

DRVDEN0
DRVDEN1

GP10/IRQIN
GP11/IRQIN

GP12/IRRX

GP13/IRTX

GP14/RS

GP15/WS

GP16/JOYRS

GP17/JSWS

GP20/IDE2_OE

GP21/EEDIN
GP22/EDOUT
GP23/EECLK

GP24/EEEN

GP25/8042_P21

VSS

VSS

VSS95VSS71VSS40VSS8VSS

130

123

16CLK
24CLK

INDEX#

STEP#

TRK0#

WPT#

RDATA#

SIDE1#

MTR0#
MTR1#

MEDID0
MEDID1

SLIN#

AFD#
STB#

BUSY

ACK#

ERR#

RXD1

TXD1
RTS1#
CTS1#
DTR1#

DSR1#

DCD1#

RXD2

TXD2
RTS2#
CTS2#
DTR2#

DSR2#

DCD2#

ULTRA I/O

4

5

DIR#

PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7

INIT#

PE

SLCT

RI1#

RI2#

37
38
39

36
35

14
9
10
11
12
15
16
17
13
18
4
7
6
5
2
3
20
19

138
137
136
135
134
133
132
131

140
141
143
144
128
129
127
126
142

145
146
148
149
150
147
152
151

155
156
158
159
160
157
154
153

96
97
98
99
100
102
103

104
105
106
107
108
109
110

TP076
TP077

TP088

IRR4_MODE

PDR0
PDR1
PDR2
PDR3
PDR4
PDR5
PDR6
PDR7

IRRX
IRTX

TP075
R_GP21

TP071
TP070
TP069

6

1

TP6

1

TP7

1

TP8

INDEX# 29
DIR# 29
STEP# 29
W D ATA# 29
WGATE# 29
TRK0# 29
WPT# 29
RDATA# 29
SIDE1# 29
DSKCHG# 29
MOTEA# 29
MOTEB# 29
DRVSA# 29
DRVSB# 29
REDWC# 29
DR ATE0 29

PDR[7:0]28

SLIN#R 28
INIT#R 28
AFD#R 28
STB#R 28
BUSY 28
ACK# 28
PE 28
SLCT 28
ERR# 28

RX0 29
TX0 29

CTS0# 29
DTR0# 29
DSR0# 29
RLSD0# 29
RI0# 29

RX1 29
TX1 29
RTS1# 29
CTS1# 29
DTR1# 29
DSR1# 29
RLSD1# 29
RI1# 29

1

TP13

1

TP15

1

TP18

1

TP20

1

TP22

1

TP23

KBRST# 18,34

1

TP24

1

TP25

1

TP26

A20GATE 18,34

R134

8.2K

6

VCC

INTEL CORPORATION

PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

I/O CONTROLLER

Size Document Number Rev
Custom

Date: Sheet of

7

R401

1K

R402

1K

Stuff for 93X onl

TP9

Stuff for 93XFR

R403

0

1

Config Port Address

R404

10K

R132

1K

C21

0.1 uF

ULTRA I/O

VCC

C18

47 0pF

C20

470pF

RTS0# 29

VCC

KEY

C22

0.1 uF

20 40Thursda

370h I/O Decode

3F0h I/O Decode

DEFAULT

C19

470pF

Intel(R) 440BX AGPset 1.0

, April 09, 1998

7

8

JP19

6
5
4
3
2
1

INFRARED HDR

8

A

B

C

D

E

AGP CONNECTOR

VCC3

SBA[7:0]9

U15C

74AS07

ST[2:0]9

AGP_OC#26

VCC3

R136

4.7K

USBAGP+26

56

PIRQ3#B
GCLKOUT9
GREQ#9,34

ST0

RBF#9,34

ST2

SBA0

SBSTB9,34

SBA2

SBA4
SBA6

J8

VCC

B1

OVRCNT#

B2

5V

B3

5V

B4

USB+

B5

GND

B6

INTB#

B7

CLK

B8

REQ#

B9

VCC3.3

B10

ST0

B11

ST2

B12

RBF#

B13

GND

B14

SPARE

B15

SBA0

B16

VCC3.3

B17

SBA2

B18

SB_STB

B19

GND

B20

SBA4

B21

SBA6

SPARE

RESERVED

VCC3.3

RESERVED

PIPE#

SPARE

VCC3.3

RESERVED

4 4

PIRQ#B18,19,22,23,34

3 3

USB­GND

INTA#

RST#

GNT#

GND

SBA1

SBA3

GND
SBA5
SBA7

VCC3

ST1

SBA1

SBA3

SBA5
SBA7

VCC3

R135

4.7K

PIRQ3#A

USBAGP- 26

3 4

74AS07

U15B
PCIRST# 8,17,22,23
GGNT# 9,34

PIPE# 9,34

PIRQ#A 18,19,22,23,34

+12V

A1

12V

A2
A3
A4
A5
A6
A7
A8
A9
A10

ST1

A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21

GAD31
GAD29

GAD27
GAD25

ADSTB-B9,34

2 2

GIRDY#9,34

GAD23

GAD21
GAD19

GAD17

GC/BE#2

GDEVSEL#9,34

GPERR#34

GSERR#34

ADSTB-A9,34

1 1

GC/BE#1

GAD14
GAD12

GAD10
GAD8

GAD7

GAD5
GAD3

GAD1

B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49
B50
B51
B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62
B63
B64
B65
B66

AD31
AD29
VCC3.3
AD27
AD25
GND
AD_STB1
AD23
Vddq3.3
AD21
AD19
GND
AD17
C/BE2#
Vddq3.3
IRDY#
SPARE
GND
SPARE
VCC3.3
DEVSEL#
Vddq3.3
PERR#
GND
SERR#
C/BE1#
Vddq3.3
AD14
AD12
GND
AD10
AD8
Vddq3.3
AD_STB0
AD7
GND
AD5
AD3
Vddq3.3
AD1
RESERVED

AGP_CONN_1.3

GAD[31:0]9

GC/BE#[3:0]

A

B

C

AD30
AD28

VCC3.3

AD26
AD24
GND

RESERVED

GC/BE3#

Vddq3.3

AD22
AD20
GND
AD18

AD16
Vddq3.3
FRAME#

SPARE

GND

SPARE

VCC3.3

TRDY#
STOP#

PME#

GND

PAR

AD15
Vddq3.3

AD13

AD11

GND

AD9

C/BE0#

Vddq3.3

RESERVED

AD6

GND

AD4
AD2

Vddq3.3

AD0

RESERVED

A26

GAD30

A27

GAD28
A28
A29

GAD26
A30

GAD24
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49
A50
A51
A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62
A63
A64
A65
A66

GC/BE#3

GAD22

GAD20

GAD18

GAD16

GAD15

GAD13

GAD11

GAD9

GC/BE#0

GAD6

GAD4

GAD2

GAD0

GFRAME# 9,34

GTRDY# 9,34
GSTOP# 9,34
AGP_PME# 18,34

GPAR 9,34

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

ACCELERATED GRAPHICS PORT (AGP) CONNECTOR

Size Docu me nt Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

E

21 40Thursday, April 09, 1998

1.0

1

2

3

4

5

6

7

8

PCI CONNECTORS

VCC3

VCC-12V

A A

PTCK23

PIRQ#B18,19,21,23,34
PIRQ#D18,19,23,34

PREQ#09,17,34

B B

IRDY#9,17,23,34

DEVSEL#9,17,23,34

PLOCK#9,23,34

PERR#23,34

SERR#9,17,23,34

C C

PRSNT#11 PRSNT#21
PRSNT#12 PRSNT#22

AD31 AD30 AD31 AD30
AD29 AD29

AD27 AD26 AD27 AD26
AD25 AD25

C/BE#3 R_AD26 C/BE#3 R_AD27

AD23 AD23AD22 AD22
AD21 AD20 AD21 AD20
AD19 AD19

AD17 AD16 AD17 AD16

C/BE#2 C/BE#2

C/BE#1 AD15 C/BE#1 AD15

AD14 AD14AD13 AD13
AD12 AD11 AD12 AD11
AD10 AD10

AD8 C/BE#0 AD8 C/BE#0
AD7 AD7

AD5 AD4 AD5 AD4
AD3 AD3

AD1 AD0 AD1 AD0

PU1_REQ64# PU1_ACK64# PU2_REQ64# PU2_ACK64#

B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49

B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62

B1
B2
B3
B4
B5
B6
B7
B8
B9

J9

-12V
TCK
GND
TDO
+5V
+5V
INTB#
INTD#
PRSNT1#
RSV
PRSNT2#
GND
GND
RSV
GND
CLK
GND
REQ#
+5V
AD(31)
AD(29)
GND
AD(27)
AD(25)
+3.3V
C/BE#3)
AD(23)
GND
AD(21)
AD(19)
+3.3V
AD(17)
C/BE#(2)
GND
IRDY#
+3.3V
DEVSEL#
GND
LOCK#
PERR#
+3.3V
SERR#
+3.3V
C/BE#(1)
AD(14)
GND
AD(12)
AD(10)
GND

AD(8)
AD(7)
+3.3V
AD(5)
AD(3)
GND
AD(1)
+5V
ACK64#
+5V
+5V

PCI_CONN

TRST#

+12V

INTA#
INTC#

RESET#

GNT#

PME#

AD(30)

+3.3V
AD(28)
AD(26)

AD(24)

IDSEL

+3.3V
AD(22)
AD(20)

AD(18)
AD(16)

+3.3V

FRAME#

TRDY#

STOP#

+3.3V

SDONE

SBO#

AD(15)

+3.3V
AD(13)
AD(11)

AD(09)

C/BE#(0)

+3.3V
AD(06)
AD(04)

AD(02)
AD(00)

REQ64#

TMS

+5V

+5V

RSV

+5V
RSV
GND
GND
RSV

+5V
GND

GND

GND

GND
GND

GND
PAR

GND

GND

+5V

+5V

+5V

VCC3

VCC

+12V

A1
A2
A3
A4

TDI

A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49

A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62

AD28 AD28

AD24 AD24

AD18 AD18

AD9 AD9

AD6 AD6

AD2

1 AND 2

PTRST# 23
PTMS 23

PTDI 23
PIRQ#A 18,19,21,23,34

PIRQ#C 18,19,23,34

PCIRST# 8,17,21,23

PCI_PME#

FRAME# 9,17,23,34
TRDY# 9,17,23,34
STOP# 9,17,23,34

SDONE_P1
SBO_P1

PAR 9,17,23

PTCK

R139

5.6K

PCLK27PCLK17

PREQ#19,17,34

VCC3

VCC

-12V

J10

B1

-12V

B2

TCK

B3

GND

B4

TDO

B5

+5V

B6

+5V

B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49

B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62

B7
B8
B9

INTB#
INTD#
PRSNT1#
RSV
PRSNT2#
GND
GND
RSV
GND
CLK
GND
REQ#
+5V
AD(31)
AD(29)
GND
AD(27)
AD(25)
+3.3V
C/BE#3)
AD(23)
GND
AD(21)
AD(19)
+3.3V
AD(17)
C/BE#(2)
GND
IRDY#
+3.3V
DEVSEL#
GND
LOCK#
PERR#
+3.3V
SERR#
+3.3V
C/BE#(1)
AD(14)
GND
AD(12)
AD(10)
GND

AD(8)
AD(7)
+3.3V
AD(5)
AD(3)
GND
AD(1)
+5V
ACK64#
+5V
+5V

PCI_CONN

PIRQ#C PIRQ#D
PIRQ#A

IRDY#
DEVSEL#
PLOCK#

PERR#
SERR#

TRST#

+12V

TMS

INTA#
INTC#

RSV
RSV

GND
GND
RSV

RESET#

GNT#

GND

PME#

AD(30)

+3.3V
AD(28)
AD(26)

GND

AD(24)

IDSEL

+3.3V
AD(22)
AD(20)

GND
AD(18)
AD(16)

+3.3V

FRAME#

GND
TRDY#

GND
STOP#

+3.3V

SDONE

SBO#

GND

PAR
AD(15)

+3.3V
AD(13)
AD(11)

GND

AD(09)

KEYKEY

C/BE#(0)

+3.3V
AD(06)
AD(04)

GND
AD(02)
AD(00)

REQ64#

+5V

+5V
+5V

+5V

+5V
+5V

+5V

VCC3

+12V

VCC

A1
A2
A3
A4

TDI

A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49

A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62

PTRST#
PTMS

PTDI

PIRQ#B

PCIRST#

FRAME#
TRDY#
STOP#

PAR

AD2

VCC VCC

R137

5.6K

R140

5.6K

PGNT#1 9,34PGNT#0 9,34
PCI_PME# 18,23,34

SDONE_P2
SBO_P2

R138

5.6K

C/BE#[3:0]9,17,23

AD[31:0]9,17,23

PRSNT#11

SDONE_P1
SDONE_P2
SBO_P1
SBO_P2

D D

1

RP3

1 8
2 7
3 6
4 5

5.6K

2

VCC

PRSNT#12 PU1_ACK64#

PRSNT#21

PRSNT#22

3

C23

0.1 uF
C24

0.1 uF
C25

0.1 uF
C26

0.1 uF

4

PU1_REQ64#

PU2_ACK64#

PU2_REQ64#

5

R142

2.7KR144

2.7K R145

2.7KR146

2.7K

VCC

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

PCI CONNECTORS 1 & 2

Size Document Number Rev
Custom

6

Date: Sheet of

7

R141

100
R143

100

R_AD26

R_AD27

22 40Thursday, April 09, 1998

8

AD26

AD27

Intel(R) 440BX AGPset 1.0

1

2

3

4

5

6

7

8

VCC3

VCC

-12V

A A

PTCK22

PIRQ#B18,19,21,22,34

PCLK37 PCLK47

PREQ#29,17,34 PREQ#39,17,34

B B

IRDY#9,17,22,34

DEVSEL#9,17,22,34

PLOCK#9,22,34

PERR#22,34

SERR#9,17,22,34

C C

PRSNT#31 PRSNT#41
PRSNT#32 PRSNT#42

AD31 AD30 AD31 AD30
AD29 AD29

AD27 AD26 AD27 AD26
AD25 AD25

C/BE#3 R_AD29 C/BE#3 R_AD31

AD23 AD23AD22 AD22
AD21 AD20 AD21 AD20
AD19 AD19

AD17 AD16 AD17 AD16

C/BE#2 C/BE#2

C/BE#1 AD15 C/BE#1 AD15

AD14 AD14AD13 AD13
AD12 AD11 AD12 AD11
AD10 AD10

AD8 C/BE#0 AD8 C/BE#0
AD7 AD7

AD5 AD4 AD5 AD4
AD3 AD3

AD1 AD0 AD1 AD0

PU3_REQ64# PU3_ACK64# PU4_REQ64# PU4_ACK64#

B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49

B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62

B1
B2
B3
B4
B5
B6
B7
B8
B9

J11

-12V
TCK
GND
TDO
+5V
+5V
INTB#
INTD#
PRSNT1#
RSV
PRSNT2#
GND
GND
RSV
GND
CLK
GND
REQ#
+5V
AD(31)
AD(29)
GND
AD(27)
AD(25)
+3.3V
C/BE#3)
AD(23)
GND
AD(21)
AD(19)
+3.3V
AD(17)
C/BE#(2)
GND
IRDY#
+3.3V
DEVSEL#
GND
LOCK#
PERR#
+3.3V
SERR#
+3.3V
C/BE#(1)
AD(14)
GND
AD(12)
AD(10)
GND

AD(8)
AD(7)
+3.3V
AD(5)
AD(3)
GND
AD(1)
+5V
ACK64#
+5V
+5V

PCI_CONN

TRST#

+12V
TMS

INTA#
INTC#

GND
GND

RESET#

GNT#

GND

PME#

AD(30)

+3.3V
AD(28)
AD(26)

GND

AD(24)

IDSEL

+3.3V
AD(22)
AD(20)

GND
AD(18)
AD(16)

+3.3V

FRAME#

GND
TRDY#

GND
STOP#

+3.3V

SDONE

SBO#

GND
AD(15)

+3.3V
AD(13)
AD(11)

GND

AD(09)

C/BE#(0)

+3.3V
AD(06)
AD(04)

GND
AD(02)
AD(00)

REQ64#

+5V

+5V
RSV
+5V
RSV

RSV
+5V

PAR

+5V
+5V

+5V

VCC3

+12V

VCC

A1
A2
A3
A4

TDI

A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
A44
A45
A46
A47
A48
A49

A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62

PCI CONNECTORS

3 AND 4

PTRST# 22
PTMS 22

PTDI 2 2
PIRQ#C 18,19,22,34

PIRQ#A 18,19,21,22,34PIRQ#D18,19,22,34

PCIRST# 8,17,21,22

PCI_PME#

AD28 AD28

AD24 AD24

AD18 AD18

FRAME# 9,17,22,34
TRDY# 9,17,22,34
STOP# 9,17,22,34

SDONE_P3
SBO_P3

PAR 9,17,22

AD9 AD9

AD6 AD6

AD2 AD2

VCC3

VCC

-12V

J12

B1

-12V

B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
B44
B45
B46
B47
B48
B49

B52
B53
B54
B55
B56
B57
B58
B59
B60
B61
B62

B2
B3
B4
B5
B6
B7
B8
B9

TCK
GND
TDO
+5V
+5V
INTB#
INTD#
PRSNT1#
RSV
PRSNT2#
GND
GND
RSV
GND
CLK
GND
REQ#
+5V
AD(31)
AD(29)
GND
AD(27)
AD(25)
+3.3V
C/BE#3)
AD(23)
GND
AD(21)
AD(19)
+3.3V
AD(17)
C/BE#(2)
GND
IRDY#
+3.3V
DEVSEL#
GND
LOCK#
PERR#
+3.3V
SERR#
+3.3V
C/BE#(1)
AD(14)
GND
AD(12)
AD(10)
GND

AD(8)
AD(7)
+3.3V
AD(5)
AD(3)
GND
AD(1)
+5V
ACK64#
+5V
+5V

PCI_CONN

PTCK

PIRQ#A PIRQ#B
PIRQ#C

IRDY#
DEVSEL#
PLOCK#

PERR#
SERR#

TRST#

+12V
TMS

INTA#
INTC#

GND
GND

RESET#

GNT#

GND

PME#

AD(30)

+3.3V
AD(28)
AD(26)

GND

AD(24)

IDSEL

+3.3V
AD(22)
AD(20)

GND
AD(18)
AD(16)

+3.3V

FRAME#

GND
TRDY#

GND

STOP#

+3.3V

SDONE

SBO#

GND
AD(15)

+3.3V
AD(13)
AD(11)

GND

AD(09)

KEYKEY

C/BE#(0)

+3.3V
AD(06)
AD(04)

GND
AD(02)
AD(00)

REQ64#

+5V

+5V
RSV
+5V
RSV

RSV
+5V

PAR

+5V
+5V

+5V

VCC3

+12V

VCC

A1
A2
A3
A4

TDI

A5
A6

PIRQ#D
A7
A8
A9
A10
A11
A12
A13
A14
A15

PCIRST#
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34

FRAME#
A35
A36

TRDY#
A37
A38

STOP#
A39
A40
A41
A42
A43

PAR
A44
A45
A46
A47
A48
A49

A52
A53
A54
A55
A56
A57
A58
A59
A60
A61
A62

PTRST#

PTMS
PTDI

PGNT#3 9,34PGNT#2 9,34
PCI_PME# 18,22,34

SDONE_P4
SBO_P4

C/BE#[3:0]9,17,22

AD[31:0]9,17,22

PRSNT#31

SDONE_P3
SDONE_P4
SBO_P3

D D

SBO_P4

1

RP4

1 8
2 7
3 6
4 5

5.6K

VCC

2

PRSNT#32 PU3_ACK64#

PRSNT#41

PRSNT#42

3

C27

0.1 uF
C28

0.1 uF
C29

0.1 uF
C30

0.1 uF

VCC

R148

PU3_REQ64#

PU4_ACK64#

PU4_REQ64#

4

5

2.7KR149

2.7K R151

2.7KR152

2.7K

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev
Custom

6

Date: Sheet of

AD29

AD31

PCI CONNECTORS 3 & 4

7

R147

100
R150

100

Intel(R) 440BX AGPset

R_AD29

R_AD31

23 40Thursday, April 09, 1998

8

1.0

1

A A

2

VCC

R153

1K

VCC

R154
1K

3

4

5

6

7

8

ISA SLOTS 0 & 1

VCC

VCC

J13

B1

GND

BRSTDRV32

-5V

-12V

+12V

B B

C C

IRQ918,19,20,35

DRQ218,20,35

ZEROWS#17,35

SMEMW#17

SMEMR#17

IOW#17,20,35,39

IOR#17,20,35,39

DACK#318,20

DRQ318,20,35

DACK#118,20

DRQ118,20,35

REFRESH#17,35

SYSCLK17,39

IRQ718,19,20,35
IRQ618,19,20,35
IRQ518,19,20,35
IRQ418,19,20,35
IRQ318,19,20,35

DACK#218,20

TC18,20

BALE17

OSC17

MEMCS16#17,35

IOCS16#17,35

IRQ1018,19,20,35
IRQ1118,19,20,35
IRQ1218,19,20,35
IRQ1518,19,20,25,35
IRQ1418,19,20,25,35

DACK#018,20

DRQ018,20,35

DACK#518

DRQ518,35

DACK#618

DRQ618,35

DACK#718

DRQ718,35

RMASTER#35

C31

47pF

B2
B3
B4
B5
B6
B7
B8

B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10
D11
D12
D13
D14
D15
D16
D17
D18

CON_ISA16C

BRSTDRV
VCC
IRQ9

-5V
DREQ2

-12V
ZEROWS#
+12V
GND
SMEMW#
SMEMR#
IOW#
IOR#
DACK3#
DREQ3#
DACK1#
DREQ1
REFRESH#
SYSCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2#
TC
BALE
VCC
OSC
GND

MEMCS16#
IOCS16#
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0#
DREQ0
DACK5#
DREQ5
DACK6#
DREQ6
DACK7#
DREQ7
VCC
MASTER#
GND

ISA 0

IOCHK#

SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0

IOCHRDY

AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10

SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0

SBHE#

LA23
LA22
LA21
LA20
LA19
LA18
LA17

MEMR#

MEMW#

SD8

SD9
SD10
SD11
SD12
SD13
SD14
SD15

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31

C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18

IOCHK# 17,35
SD7 17,20,35
SD6 17,20,35
SD5 17,20,35
SD4 17,20,35
SD3 17,20,35
SD2 17,20,35
SD1 17,20,35
SD0 17,20,35
IOCHRDY 17,20,35
AEN 17,20
SA19 17,27,35
SA18 17,27,35
SA17 17,27,35
SA16 17,27,35
SA15 17,20,27,35
SA14 17,20,27,35
SA13 17,20,27,35
SA12 17,20,27,35
SA11 17,20,27,35
SA10 17,20,27,35
SA9 17,20,27,35
SA8 17,20,27,35
SA7 17,20,27,35
SA6 17,20,27,35
SA5 17,20,27,35
SA4 17,19,20,27,35
SA3 17,20,27,35
SA2 17,20,27,35,39
SA1 17,19,20,27,35,39
SA0 17,19,20,27,35,39

SBHE# 17
LA23 17,35
LA22 17,35
LA21 17,35
LA20 17,35
LA19 17,35
LA18 17,35
LA17 17,35
MEMR# 17,19,27,35
MEMW# 17,19,27,35
SD8 17,35
SD9 17,35
SD10 17,35
SD11 17,35
SD12 17,35
SD13 17,35
SD14 17,35
SD15 17,35

BRSTDRV SD7

-5V

IRQ9 SD5

-12V

+12V

NS1
TBD

**NOTE** DEFAULT NO STUFF.
THIS CAP USED TO FILTER
NOISE ON TC SIGNAL

DRQ2 SD3
ZEROWS# SD1

SMEMW# AEN
SMEMR# SA19
IOW# SA18
IOR# SA17
DACK#3 SA16
DRQ3 SA15
DACK#1 SA14
DRQ1 SA13
REFRESH# SA12
SYSCLK SA11
IRQ7 SA10
IRQ6 SA9
IRQ5 SA8
IRQ4 SA7
IRQ3 SA6
DACK#2 SA5
TC SA4
BALE SA3

OSC1 SA1

MEMCS16# SBHE#
IOCS16# LA23
IRQ10 LA22
IRQ11 LA21
IRQ12 LA20
IRQ15 LA19
IRQ14 LA18
DACK#0 LA17
DRQ0 MEMR#
DACK#5 MEMW#
DRQ5 SD8
DACK#6 SD9
DRQ6 SD10
DACK#7 SD11
DRQ7 SD12

RMASTER# SD14

B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31

D10
D11
D12
D13
D14
D15
D16
D17
D18

B1
B2
B3
B4
B5
B6
B7
B8
B9

D1
D2
D3
D4
D5
D6
D7
D8
D9

J14

GND
BRSTDRV
VCC
IRQ9

-5V
DREQ2

-12V
ZEROWS#
+12V
GND
SMEMW#
SMEMR#
IOW#
IOR#
DACK3#
DREQ3#
DACK1#
DREQ1
REFRESH#
SYSCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2#
TC
BALE
VCC
OSC
GND

MEMCS16#
IOCS16#
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0#
DREQ0
DACK5#
DREQ5
DACK6#
DREQ6
DACK7#
DREQ7
VCC
MASTER#
GND

CON_ISA16C

ISA 1

IOCHK#

SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0

IOCHRDY

AEN
SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10

SA9

SA8

SA7

SA6

SA5

SA4

SA3

SA2

SA1

SA0

SBHE#

LA23
LA22
LA21
LA20
LA19
LA18
LA17

MEMR#

MEMW#

SD8

SD9
SD10
SD11
SD12
SD13
SD14
SD15

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31

C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18

IOCHK#
SD6
SD4
SD2
SD0

IOCHRDY

SA2
SA0

SD13
SD15

C32

47pF

D D

1

2

3

4

5

6

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

ISA SLOTS

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

7

24 40Thursday, April 09, 1998

8

1.0

1

A A

2

3

4

5

6

7

8

IDE CONNECTORS

SDD[15:0]17

PDD[15:0]17

R155

BRSTDRV#32

RP5

1 16

PDD7

2 15

PDD6

3 14

PDD5

4 13

B B

PDREQ17

PDIOW#17

PDIOR#17
PIORDY17

PDDACK#17

PDD4

5 12

PDD3

6 11

PDD2

7 10

PDD1

8 9

PDD0

VCC VCC

R157

1K

33

R159

33

33

1 8
2 7
3 6

PDA1 R_PDA1

4 5

PDA0 R_PDA0

PCS1#17

IDEACTP#32 IDEACTS#32

C C

PDA[2:0]17 SDA[2:0]17

IRQ1418,19,20,24,35

R173

5.6K

R_BRSTDRV#1

33

DD7#1DD7#1 DD8#1 DD7#2DD7#2
DD6#1DD6#1 DD9#1 DD6#2DD6#2
DD5#1DD5#1 DD10#1 DD5#2DD5#2

DD4#1 DD11#1 DD4#2

DD3#1DD3#1 DD12#1 DD3#2DD3#2
DD2#1DD2#1 DD13#1 DD2#2DD2#2

R390
10K

R_PDDREQ#

RP9

33

R169

33

DD1#1DD1#1 DD14#1 DD1#2DD1#2
DD0#1DD0#1 DD15#1 DD0#2DD0#2

R161

R_PDIOW# R_SDIOW#

33R163

R_PDIOR# R_SDIOR#

R375
47

RPDACK# RSDACK#

R_PCS1# R_PCS3# R_SCS1# R_SCS3#

R377

47

J15
1
3
5
7
9

11
13
15
17
19
21
23
25
27
29
31
33
35
37
39

PRIMARY
IDE CONN.

2

BRSTDRV#
4
6
8
10
12
14
16

RP6
1 16
2 15
3 14
4 13
5 12
6 11
7 10
8 9

33

PDD8
PDD9
PDD10
PDD11
PDD12
PDD13
PDD14
PDD15

18
20
22
24
26
28

PRI_PD1 SEC_PD1
30
32
34
36

R_PDA2
38
40

R165
470

R167

33

R170

33

PDA2

SDREQ17

SDIOW#17

SDIOR#17

SIORDY17

SDDACK#17

PCS3# 17

SCS1#17

IRQ1518,19,20,24,35

SDD7
SDD6
SDD5
SDD4
SDD3
SDD2
SDD1
SDD0

1 16
2 15
3 14
4 13
5 12
6 11
7 10
8 9

R158
1K

SDA1
SDA0

R174

5.6K

RP7

33

33

R160

33

1 8
2 7
3 6
4 5

R391
10K

RP10

33

R171

33

R378

47

R162
33R164

R156

33

R376
47

R_BRSTDRV#2

R_SDDREQ#

R_SDA1
R_SDA0

RIRQ15

J16
1
3
5
7
9

11
13
15
17
19
21
23
25
27
29
31
33
35
37
39

SECONDARY
IDE CONN.

2
4

DD8#2

6

DD9#2

8

DD10#2

10

DD11#2

12

DD12#2

14

DD13#2

16

DD14#2

18

DD15#2

RP8
1 16
2 15
3 14
4 13
5 12
6 11
7 10
8 9

33

SDD8
SDD9
SDD10
SDD11
SDD12
SDD13
SDD14
SDD15

20
22
24
26
28
30
32
34
36

R_SDA2
38
40

R166
470

R168

33

R172

33

SDA2

SCS3# 17

D D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

PCI IDE CONNECTORS

Size Document Number Rev
Custom

1

2

3

4

5

6

Date: Sheet of

Intel(R) 440BX AGPset

7

25 40Thursday, April 09, 1998

8

1.0

(

)

(

)

y

VCC

A

F1

1.5-2.0A

USB_PWR0

R175

470K

B

C

D

E

OC#018

4 4

VCC

OC#118

3 3

AGP_OC#21

USBP0-18
USBP0+18

USBP1-18

2 2

USBP1+18

VCC3

R380
330K

**NOTE:
PLACE R123-126 AND
C8-11 AS CLOSE AS

F2

1.5-2.0A

R290
0

C11

47pF

C33

0.001uF

R289

0

R176

560K

USB_PWR1

C37

0.001uF

DO NOT STUFF

R126
27

R125
27

C10

47pFC947pFC847pF

R124
27

R177

470K

R178
560K

R123
27

C38
68 uF

C34

68 uF

R181
15K

TANTALUM

POSSIBLE TO THE
PIIX4.

1 1

A

B

BLM31A700S
L1

+

TANTALUM

BLM31A700S
L4

21

+

R182

R183

15K

15K

21

C39

0.1 uF

R184

15K

C35

0.1 uF

C

R179
0

R180
0

R_USBD1+

R_USBD1-

USB CONNECTORS

J17

USBV0
USBD0­USBD0+
USBG0

C36

470 pF

USBV1
USBD1­USBD1+
USBG1

C40

470 pF

R185
0

DO NOT STUFF

R186
0

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

USB HEADER

Size Document Number Rev
Custom

D

, April 09, 1998

Date: Sheet of

1

VCC

2

DATA-

3

DATA+

4

GND

21

21

USB_CON_0.0

L3

BLM31A700S

J18

1

VCC

2

DATA-

3

DATA+

4

GND

USB_CON_0.0

L6

BLM31A700S

NOTE:

Intel(R) 440BX AGPset

5

UGND0

5

6

6

5

UGND1

5

6

6

USBAGP+ 21

USBAGP- 21

USE PIIX4
APPLICATION
NOTE FOR
LAYOUT
GUIDELINES

21

BLM31A700S

21

BLM31A700S

26 40Thursda

E

L2

L5

1.0

1

A A

2

3

4

5

6

7

8

STUFFING OPTION

VCC

JP21

SYSTEM ROM

MODE

U16A

1 2

74HCT14

B B

MODE

Prog Boot Block

PROG DEV

(incl. boot block)

PnP

Write Protect

PWRGOOD3,5,32

MEMW#17,19,24,35

MEMR#17,19,24,35

C C

JP22

1-2

1-2
2-3

2-3

R_RP#

B_SA17

SA17

JP23

2-3
1-2
1-2
2-3

1
3

+12V

JP20

2

J_SA17

JP22

1

2

3

FL2MPU

C42

0.01 uF

NORMAL

RECOVERY

FLASH SOCKET

SA17
SA16
SA15
SA14
SA13
SA12
SA11
SA10 XD0
SA9 XD1
SA8 XD2
SA7 XD3
SA6 XD4
SA5 XD5
SA4 XD6
SA3 XD7
SA2
SA1
SA0

JP20

1-2
2-3

U17

40

A17

1

A16

2

A15

3

A14

4

A13

5

A12

6

A11

36

A10

7

A9

8

A8

14

A7

15

A6

16

A5

17

A4

18

A3

19

A2

20

A1

21

A0

9

WE#

24

OE#

22

CE#

10

RP#
E28F002BC-T

DU

DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7

NC
NC
NC
NC

VPP

12

25
26
27
28
32
33
34
35

13
29
37
38

11

TSOP SOCKET

C41

0.01 uF

FL_VPP

XD[7:0] 19,20,39SA[19:0]17,19,20,24,35,39

+12V

JP23

1

2

3

FL1MPU

SA19
SA16
SA15
SA12 SA14
SA7
SA6
SA5
SA4
SA3
SA2
SA1
SA0

XD0
XD1
XD2

* Header provided for BIOS emulation

12
34
56
78

910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
3132
3334

Emulator Header

XD7
XD6
XD5
XD4
XD3

SA18
SA17

SA13
SA8
SA9
SA11

SA10

MEMW#
BIOSCS#

BIOSCS#18

D D

1

2

3

4

5

6

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

SYSTEM ROM

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

7

27 40Thursday, April 09, 1998

8

1.0

1

y

A A

2

3

4

C43

180pF

C45

180pF

5

C44

180pF

6

7

8

VCC

C46

D4
IN4148

C47

180pF

180pF

PAR5VOLTS

RP11

1K

RP13

1K

RP15
1 8
2 7
3 6
4 5

1K

RP17

1K

RP18
1 8
2 7
3 6
4 5

45
36
27
18

45
36
27
18

45
36
27
18

C49

180pF

C51

180pF

C53

180pF

C55

180pF

C57

180pF

PDR[7:0]20

B B

AFD#R20
STB#R20

INIT#R20

PDR0

RP12

33

45
36
27
18

PDR3

RP14

SLIN#R20

PDR2
PDR1

45
36
27
18

33

C C

PDR7
PDR6
PDR5
PDR4

RP16

45
36
27
18

33

ERR#20
SLCT20

PE20

BUSY20

ACK#20

1K

C48

180pF

C50

180pF

C52

180pF

C54

180pF

C56

180pF

C58

180pF

C59

180pF

PARALLEL HEADER

J19

AFD#
ERR#
INIT#
SLIN#

STB#
PD0
PD1
PD2
PD3
PD4
PD5
PD6

PD7
ACK#
BUSY
PE

SLCT

1

14

2

15

3

16

4

17

5

18

6

19

7

20

8

21

9
22
10
23
11
24
12
25
13

CONNECTOR DB25

D D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

PARALLEL PORT

Size Document Number Rev
Custom

1

2

3

4

5

6

Date: Sheet of

Intel(R) 440BX AGPset

, April 09, 1998

7

28 40Thursda

8

1.0

A

B

C

D

E

VCC+12V

U18
VCC+1VCC

-12V

-12V

RP19

1K

45
36
27
18

1

2

RA

3

RA

4

RA

5

DY

6

DY

7

RA

8

DY

9

RA

10

VCC­GD75232SOP

U19
VCC+1VCC

2

RA

3

RA

4

RA

5

DY

6

DY

7

RA

8

DY

9

RA

10

VCC­GD75232SOP

TP094

SP_DCD0
SP_RXD0
SP_DSR0

4 4

3 3

2 2

DSKCHG#20

SIDE1#20

RDATA#20

WPT#20

TRK0#20

W G ATE#20

WDATA#20

STEP#20

DIR#20

MOTEB#20

DRVSA#20

1 1

A

DRVSB#20
MOTEA#20

INDEX#20

DRATE020

REDWC#20

SP_DTR0
SP_TXD0
SP_CTS0
SP_RTS0
SP_RI0

SP_DCD1
SP_RXD1
SP_DSR1
SP_DTR1
SP_TXD1
SP_CTS1
SP_RTS1
SP_RI1

VCC

R189

1.0K

TP27

B

20
19

RY

18

RY

17

RY

16

DA

15

DA

14

RY

13

DA

12

RI0#

RY

11

GND

VCC+12V

20
19

RY

18

RY

17

RY

16

DA

15

DA

14

RY

13

DA

12

RI1#

RY

11

GND

FLOPPY
INTERFACE
HEADER

J22

3334
3132
2930
2728
2526
2324
2122
1920
1718
1516
1314
1112

910
78
56
34
12

RLSD0# 20
RX0 20
DSR0# 20
DTR0# 20
TX0 20
CTS0# 20
RTS0# 20
RI0# 20

RLSD1# 20
RX1 20
DSR1# 20
DTR1# 20
TX1 20
CTS1# 20
RTS1# 20
RI1# 20

C

**NOTE** Connected to
GPI21 of the PIIX4 for BIOS
detection of a floppy drive.

SP_DCD0
SP_RXD0
SP_TXD0
SP_DTR0

SP_DSR0
SP_RTS0
SP_CTS0
SP_RI0

SP_DCD1
SP_RXD1
SP_TXD1
SP_DTR1

SP_DSR1
SP_RTS1
SP_CTS1
SP_RI1

GPI21 18

100pF

C64
100pF

100pF

C72
100pF

C60

C68

D

C61

100pF

C62

C65
100pF

100pF

C73
100pF

Title

Size Document Number Rev
Custom

Date: Sheet of

100pF

C66
100pF

C69

C70

100pF

C74
100pF

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

SERIAL AND FLOPPY

C63

100pF

C67
100pF

C71

100pF

C75
100pF

Intel(R) 440BX AGPset

J20
1

2
3

COM 0

4
5
6

HEADER

7
8
9

HEADER 9

J21
1

2
3
4
5

HEADER

6
7
8
9

HEADER 9

29 40Thursday, April 09, 1998

E

COM 1

1.0

1

y

2

3

4

5

6

7

8

VCC

A A

STUFFING
OPTION

F3

1.25A

F4

1.35A

KB5V

21

L7

BLM31A700S

L8

B B

KBDAT#20

2 1

BLM31A700S

L9

KBCLK#20

2 1

KB DAT_FB#

KBCLK_FB#KBCLK_FB#

TP28

TP29

1

TP095

1

TP096

KBSIGNDKBSIGND

KB5V_FBKB5V_FB

BLM31A700S

L10

MSDAT#20

2 1

BLM31A700S

L11

MSCLK#20

2 1

MSDAT_FB#

MSCLK_FB#MSCLK_FB#

TP30

TP31

1

TP097

1

TP098

BLM31A700S

C76

C C

470pf

C77
470pF

C78
470pF

C79
470pF

C80

0.1 uF

KBSHGND

J23
1

2

KEYBOARD

3
4

CON NECTOR

5
6
7
8
9

J24
1

MO USE

2
3

CON NECTOR

4
5
6
7
8
9

L12

BLM31A700S

L13

BLM31A700S

2 1

2 1

D D

1

2

3

4

5

6

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

KEYBOARD/MOUSE INTERFACE

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset 1.0

, April 09, 1998

7

30 40Thursda

8

1

y

(

)

(

)

]

]

VID_A[4:0

4

A A

B B

VCCCORE1

+12V

VID_A0
VID_A2
VID_A4

2

A1
A2
A3
A4
A5
A6
A7
A8

A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20

J25

5Vin
5Vin
5Vin
12 Vin
12 Vin
ISHARE
VID0
VID2
VID4
VCCcore
Vss
VCCcore
Vss
VCCcore
Vss
VCCcore
Vss
VCCcore
Vss
VCCcore

VRM8_2.05

5Vin
5Vin
5Vin

12VIN

RES.

OUTEN

VID1
VID3

PWRGD

Vss

VCCcore

Vss

VCCcore

Vss

VCCcore

Vss

VCCcore

Vss

VCCcore

Vss

B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20

3

+12V

VCCVCC

ROE1
VID_A1
VID_A3

VCC3 VCC3

R190
10K

4

VID_B[4:0

6

R191
10K

VRM1_PGD 32

VCCCORE1

**NOTE** A VRM should not
be installed if a processor is
not installed unless
VRMx_PGD is asserted by the
VRM with a VID = 1111. If not
asserted by the VRM, then
circuitry must be provided to
the block VRMx_PGD for the
unpopulated Slot 1.

5

VCCCORE2

+12V

VID_B0
VID_B2
VID_B4

A1
A2
A3
A4
A5
A6
A7
A8

A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20

J26

5Vin
5Vin
5Vin
12 Vin
12 Vin
ISHARE
VID0
VID2
VID4
VCCcore
Vss
VCCcore
Vss
VCCcore
Vss
VCCcore
Vss
VCCcore
Vss
VCCcore

VRM8_2.05

6

B1

5Vin

B2

5Vin

B3

5Vin

B4

12VIN

B5

RES.

B6

OUTEN

B7

VID1

B8

VID3

B9

PWRGD

B10

Vss

B11

VCCcore

B12

Vss

B13

VCCcore

B14

Vss

B15

VCCcore

B16

Vss

B17

VCCcore

B18

Vss

B19

VCCcore

B20

Vss

+12V

VCCVCC

VCC3 VCC3

ROE1
VID_B1
VID_B3

7

R192
10K

R193

10K

VCCCORE2

8

VRM2_PGD 32

C C

VTT

VCC3 VTT

REGULATOR

VR2

3

VIN

C84

+
22uF
16V
20%

Solid Tantalum

D D

1

LT1585A-1.5

**NOTE**

1. VOLTAGE REGULATOR
SHOULD BE LOCATED NEAR
THE 443BX

2. 6A OF OUTPUT CURRENT IS NECESSARY
FOR A DP DESIGN. THE LT1585A-1.5 IS ONLY
CAPABLE OF 5A. MAY NEED ANOTHER
REGULATOR.

VOUT

GND

2

+

C82

C114

22uF

1

2

16V
20%

Solid Tantalum

1.0 uF

3

C81

1.0 uF
CERAMIC
X7R

4

+12V

C85

1.0 uF

V25_G1

1
2
3
4

V25_R3

R197

1.21K
1%

VR1

S/D
VIN
GND
FB

LT1575_0.1

2.5V REGULATOR

8

IPOS

7

INEG

6

GATE

5

C88
2200pF

V25_R2

V2R

R195

100

C89

0.01 uF

6

COMP

R196

1.30K
1%

5

VCC3

2

4

VCC2.5

Q1

MMFT3055EL

3

+

C87
22uF

16V
20%

Intel(R) 440BX AGPset 1.0

, April 09, 1998

7

C83

1.0 uF

R194
10

1

V2GV25_R1

C86

1.0 uF
CERAMIC
X7R

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

DC-DC CONVERTER CONNECTORS

Size Document Number Rev
Custom

Date: Sheet of

31 40Thursda

8

1

(

)

(

)

2

3

4

5

6

+12V +12V

7

8

R207
510K

LID18,34

FanM
FanC
Sense

3VSB

R392

4.7K

Q7
P-FET

DUAL-COLOR LED

GREEN

D11

D10

VCC3

5VSB

7

34

14

7

VCC

3VSB

14

U11B

3 4

7

74LVC14

VCC2.5

R213
330

12

R416
1K

Intel(R) 440BX AGPset

RED

R412
0

C94

0.1 uF

R212

4.7K
U21D

9 8

74ALS05

3VSB

14

U11C

5 6

7

74LVC14

U36B

74F07

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

FRONT PANEL

Size Document Number Rev
Custom

Date: Sheet of

BRSTDRV# 25

U16B

VCC VCC

R204
10K

VCC3

1 2

VCC3

3 4

VRM1_PGD31

VRM2_PGD31

JP_RST

S2

3VSB

1 3

3 4

74HCT14

R203

2.2K

R205
10K

1
2

R208

4.7K

U21A

74ALS05

R209

4.7K

U21B

74ALS05

R215
100

C99

0.01 uF

SPK1

HA RD DRIVE
LED
CONNECTOR

U20A

74ALS08

IDEACTP#25
IDEACTS#25

A_SLOTOCC#4,34

B_SLOTOCC#6,34

RESET
SWITCH
HEADER

RSTDRV17,20

SPKR18

J32

D7

MMBZ5226BL
SOT-23

1

A A

B B

C C

D D

C97

0.01 uF

+

2

13

C100
10uF

14

1
2

U16C

5 6

74HCT14

Q2
MMBT3904L

3

5VSB

U22A

7

74HC10

4
5

+

R217

56

SPK2

IDE_LED

C95
470pF

U20B

74ALS08

C98
10uF

12

5VSB

R200

68
R202

68

VCC

6

R206
470

+3.3V

VCC3

ILPU1

C96
470pF

5 6

BRSTDRV 24

TP32

BUZZ2

C93

0.1 uF

J31
1

2
3
4

4 HEADER

VCC3

U21C

74ALS05

B_SUSC18

ATX POWER
CONNECTOR

J33
1 2

3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20

R218

22K

C101

1.0 uF

3

FAN_LED18

SPEAKER

VCC

TP888

+12V

C90

0.1 uF

+12V

C92

0.1 uF

R210

4.7K

DBRESET#7

VCC3

R214

4.7K

+12V

+5.0V

VCC

-5V

-12V

R_RSMRST#

Re sume Reset circuitry
using a 22 msec delay and
Schmitt trigger logic.

J29
1

KEY

2
3
4

CP U FAN
HEADERS

J36

SENSE

3
2

+12V

1

GND

640456-3

J37

3
2
1

640456-3

VCC

R216

8.2K

PG1 PG2

4

VCC

R408

4.7K

SENSE
+12V
GND

VCC3

R211
240

U16D

9 8

74HCT14

3VSB

14

U11D

9 8

7

74LVC14

VCC

R409

4.7K

U35A

1 2

74F06
U23F

13 12

74F07

U35B

3 4

74F06

CPUFAN1 39

CPUFAN2 39

14

3
4
5

7

BRSM1

5VSB

U22B

74HC10

PG3

U16E

11 10

74HCT14

3VSB

14

11 10

7

5

VCC

R394

330

C181

VCC

100pF

R395

330

C182
100pF

3VSB

U11E

74LVC14

S1

SW PUSHBUTTON

JP24

PWR_ON_JMP

6

PG4 PG5

POWER LED
HEADER

J28
1

key

2
3

OPTIONAL ATX
CONNECTOR

J35

4 1

1394M

5 2

1394V

6 3

RES

Molex 39-30-1060

ACPI required POWER BUTTON to be
located on the front of the chassis.

12

U23A

1 2

74F07

WOLLID18

PS_POK 18

RSMRST# 18

6

R393

1K

D9

1N4148

R407

1.2K

VCC

R397

U15D

4.7K
9 8

74AS07

5VSB

**OPTIONAL** WOL support
requires 600mA of Stand-By
current.

R199

4.7K

PWRGOOD 3,5,27

PWROK 9,18

Wake-On-LAN
Header

J34

3
2
1

AMP 173981-3

(or Foxconn HF58030)

32 40Thursday, April 09, 1998

8

PSFAN 39

PWRBT# 18

POWER-ON 18

1.0

1

[1]

[0]

q

y

q

}

y

2

3

4

5

6

7

8

de}de}de}de}de}de}de}de}de}de

PROCESSOR BUS/CORE FREQUENCY

A A

VCC3

182736

45

RP20

4.7K

VCC3

U23B

3 4

74F07
U23C

5 6

74F07
U23D

9 8

74F07
U23E

11 10

74F07

CR ESET 19

A20M# 3,5,34

IGNNE# 3,5,34

LINT0 3,5,34

LINT1 3,5,34

JP25

KL_CFG1

JP26

KL_CFG2

KL_CFG3

B B

VCC3

KL_CFG4

JP27

JP28

A20_PB

IGNE_PB

U24

2

1A1

4

R291

10K

PX4_A20M#18,34
PX 4_IGNNE#18,34
PX 4_INTR18,19,34
PX4_NMI18,34

CR ESET#8

1A2

6

1A3

8

1A4

11

2A1

13

2A2

15

2A3

17

2A4

1

1G

19

2G

74FCT3244

U21E

11 10

1Y1
1Y2
1Y3
1Y4
2Y1
2Y2
2Y3
2Y4

18
16
14
12
9
7
5

LINT0_PB

3

LINT1_PB

R219
330

74ALS05

Processor Core Fre
S

stem Bus Fre

Reserved

3VSB

C C

U11A

14

1 2

7

74LVC14

CR S T_STBY 19

:

LINT

2
3
4
5

5/2

7/2

L
L

L
L

L
L

LINT

IGNNE#

A20M#

JP25

JP26

JP27JP28

L

L
L

H
H

L

LL

L

H

H

L

H

H

L

L
H

L

All Other Combinations, HLLL-HHHL

2

H

H

H

H

D D

1

2

3

4

5

6

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

PROCESSOR BUS/CORE FREQUENCY

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset 1.0

, April 09, 1998

7

33 40Thursda

8

1

PERR#22,23
SERR#9,17,22,23
PLOCK#9,22,23

STOP#9,17,22,23
DEVSEL#9,17,22,23

TRDY#9,17,22,23
IRDY#9,17,22,23
FRAME#9,17,22,23

A A

PCI BUS

B B

C C

PIIX4

D D

1

PREQ#49

PIRQ#D18,19,22,23
PIRQ#C18,19,22,23
PIRQ#B18,19,21,22,23
PIRQ#A18,19,21,22,23

PREQ#39,17,23
PREQ#29,17,23
PREQ#19,17,22
PREQ#09,17,22

PGNT#49
PGNT#39,23
PGNT#29,23
PGNT#19,22

PGNT#09,22

PHLD#9,17
PHLDA#9,17
REQ#A18
REQ#B18
REQ#C18
APICREQ#18,19
THERM#3,5,18

A20GATE18,20
KBRST#18,20

TEST#18
SMBALERT#18
BATLOW#18

PCI_PME#18,22,23
LID18,32
EXTSMI#18,39
PX4_CFG118

APICCS#18,19
SMBDATA3,5,8,15,16,18,39
SMBCLK3,5,8,15,16,18,39

PX4_INTR18,19,33
PX4_IGNNE#18,33
PX4_A20M#18,33
PX4_NMI18,33

GPI[20:13]18

2

RP21

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

2.7K
RP22

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

2.7K

RP23

1

8

2

7

3

6

4 5

8.2K
RP24

1
2
3
4 5

8.2K

PGCS#118,39

R240

2.7K

GPI13
GPI14
GPI15
GPI16

GPI17
GPI18
GPI19
GPI20

GPI718

2

1

PU

1

PU

8
7
6

RP25

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K
RP27

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K

R238

8.2K

R242

2.7K

RP29
1
2
3
4 5

2.7K

RP31
1
2
3
4 5

2.7K

3

VCC

VCC

VCC3

1

PU

1

PU

8
7
6

RP30
1
2
3
4 5

2.7K

8
7
6

RP32
1
2
3
4 5

2.7K

3

4

VCC3

3VSB

VCC3

AGP

8
7
6

8
7
6

4

5

A_SLOTOCC#4,32

B_SLOTOCC#6,32

FERR#3,5,18

THERMTRIP#3,5

TESTHI3,5

PICD[1:0]3,5,19

FLUSH#3,5

STPCLK#3,5,18

APC_SMI#19

SLOT 1

PX4_SMI#18,19

SLP#3,5,18

HINIT#3,5,18

A20M#3,5,33
IGNNE#3,5,33

LINT03,5,33
LINT13,5,33

GPERR#21
GSERR#21
GSTOP#9,21
GDEVSEL#9,21
GTRDY#9,21
GIRDY#9,21
GFRAME#9,21
ADSTB-A9,21
ADSTB-B9,21
SBSTB9,21

GGNT#9,21
GREQ#9,21
PIPE#9,21
RBF#9,21

AGP_PME#18,21

GPAR9,21

5

6

R235

8.2K

R237

8.2K

R241

8.2K

R244
8,2K

R246

8.2K

R250

8.2K

R252

8.2K

R248
100K

6

R222

8.2K

R224

220

PICD0

PICD1

R231

430

R233

330

2
3
4
5
6
7
8
9

10

R236

8.2K

R239

8.2K

R243

8.2K

R245

8.2K

R247

8.2K

R249

8.2K

R251

8.2K

R411

8.2K

7

VCC3

R223

8.2K

R292

220

R226

4.7K

R227

150

R228

150

R229

510

R230

430

R232

430

R234

330

RP26
R1

R2
R3
R4
R5
R6
R7
R8
R9

330

VCC2.5

**NOTE** Resistor values on
signals STPCLK#, APC_SMI#,
PX4_SMI#, SLP# & HINIT#
enable an LAI to be used for
board debug. If an LAI will not
be used for debug the resistor
values should be changed to 1K
ohm.

VCC2.5

1

PU

VCC3

3VSB

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

BUS RESISTORS

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset

7

8

34 40Thursday, April 09, 1998

8

1.0

A

y

B

C

D

E

UNUSED GATES

3VSB

5VSB

E

4

14

5 6

7

U13B
74LVC125

10

14

9 8

7

U13C
74LVC125

13

14

12 11

7

U13D
74LVC125

U30A

14

1 2

7

74HCT14
U30C

14

5 6

7

74HCT14
U30D

14

9 8

7

74HCT14
U30E

14

11 10

7

74HCT14
U30F

14

13 12

7

74HCT14

35 40

VCC

4 4

SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8

SD9
SD10
SD11
SD12
SD13
SD14
SD15

R254

8.2K

RP33

1 8
2 7
3 6
4 5

8.2K

RP34

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K

RP35

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K

RP37

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K

RP39

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

5.6K

IRQ#818,19

IRQ1218,19,20,24
IRQ1418,19,20,24,25
IRQ1518,19,20,24,25

IRQ118,19,20
IRQ318,19,20,24
IRQ418,19,20,24
IRQ518,19,20,24
IRQ618,19,20,24
IRQ718,19,20,24
IRQ918,19,20,24

IRQ1018,19,20,24

3 3

ISA BUS

2 2

1 1

IRQ1118,19,20,24

SD[15:0]17,20,24

IOW#17,20,24,39

MEMW#17,19,24,27

DRQ018,20,24
DRQ118,20,24
DRQ218,20,24
DRQ318,20,24
DRQ518,24
DRQ618,24
DRQ718,24

A

3VSB

VCC

VCC

1

PU

VCC

1

PU

VCC

1

PU

1

PU

B

IOCHK#17,24

ZEROWS#17,24

IOCHRDY17,20,24

RMASTER#24

REFRESH#17,24

IOR#17,20,24,39

MEMR#17,19,24,27

MEMCS16#17,24

IOCS16#17,24

SA[19:0]17,19,20,24,27,39

LA[23:17]17,24

SA19
SA18
SA17
SA16
SA15
SA14
SA13
SA12
SA11

SA10
SA9
SA8
SA7
SA6
SA5
SA4
SA3
SA2

SA1
SA0
LA23
LA22
LA21
LA20
LA19
LA18
LA17

R253

4.7K
R255

1K
R256

1K
R257

1K
R258

1K
R259

8.2K
R260

8.2K
R261

1K
R262

1K

RP36

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K
RP38

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K
RP40

2

R1

3

R2

4

R3

5

R4

6

R5

7

R6

8

R7

9

R8

10

R9

8.2K

C

VCC

1

PU

VCC

1

PU

VCC

1

PU

U20C

9

10

74ALS08

U20D

12
13

74ALS08

U35C

5 6

74F06
U35D

9 8

74F06
U35E

11 10

74F06
U35F

13 12

74F06

5VSB

U36C

14

5 6

7

74F07

U36D

14

9 8

7

74F07

U36E

14

11 10

7

74F07

U36F

14

13 12

7

74F07

8

11

D

U21F

13 12

74ALS05

U16F

13 12

74HCT14

U15A

1 2

74AS07
U15E

11 10

74AS07
U15F

13 12

74AS07

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev
Custom

, April 09, 1998

Thursda

Date: Sh e et of

ISA BUS PULLUPS

Intel(R) 440BX AGPset 1.0

1

2

3

4

5

6

7

8

VCC3

A A

B B

C C

DIM M DE COUPLING

0.1 uF

CD1

16V

0.1 uF

CD6

16V

0.1 uF

CD13

16V

0.1 uF

CD18

16V

0.1 uF

CD21

16V

0.1 uF

CD23

16V CD24

0.1 uF

16V CD89

CD2

CD7

CD14

CD19

CD22

CD88

0.1 uF

16V

0.1 uF

16V

0.1 uF

16V

0.1 uF

16V

0.1 uF

16V

0.1 uF

16V

0.1 uF

16VCD87

CKBF DECOUPLING

CD3

CD8

CD15

CD20

CD85

CD86

0.1 uF

0.1 uF

0.1 uF

0.1 uF

0.1 uF

0.1 uF

0.1 uF

16V

16V

16V

16V

16V

16V

16V

C102

+

22uF 16V

C103

+

22uF 16V

C104

+

22uF 16V

C105

+

22uF 16V

C116

+

22uF 16V

443BX DECOUPLING

VCC3

CD4

CD9

CD11

CD16

CK100 DECOUPLING

0.1 uF

16V CD5

0.1 uF

16V

0.1 uF

16V

0.1 uF

16V

CD10

CD12

CD17

0.01 uF

16V

0.01 uF

16V

0.01 uF

16V

0.01 uF

16V

VCC3

C195

+

22uF

C196

470pF
C197

0.01uF

D D

1

2

3

4

VCC3 VCC2.5

CD98

CD99

C171

470pF
16V

+

22uF

5

0.01 uF
16V

C178

0.01uF
16V

C179

470pF
16V

C180

+

22uF

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

DRAM, CLOCK AND 443BX DECOUPLING CAPACITORS

Size Document Number Rev
Custom

6

Date: Sheet of

Intel(R) 440BX AGPset

7

36 40Thursday, April 09, 1998

8

1.0

1

2

3

4

5

6

7

8

BULK POWER DECOUPLING

A A

**MAY NEED TO ADD MORE
DECOUPLING TO VCC3 FOR
THIS DP DESIGN.

C108

B B

C C

VCCCORE VCCCORE VCCCORE VCCVCCCORE

D D

1

+ ++

22 uF 16V

0.1 uF

CD62

16V CD63

CORE VOLTAGE DECOUPLING

10uF

CD100

16V

10uF

CD104

16V

10uF

CD107

16V

10uF

CD110

16V

10uF

CD112

16V

2

10uF

CD101

10uF

CD105

10uF

CD108

10uF

CD111

C106

+

22 uF 16V

0.1 uF

CD48

0.1 uF

CD52

16V

16V

16V

16V

16V

16V

VCCVCC3

+

22 uF 16V

CD49

CD53

-5v -12v+12v

C109

22 uF 16V

0.1 uF

16V CD64

100uF

CD102

16V

100uF

CD106

16V

100uF

CD109

16V

3

C107

0.1 uF

0.1 uF

16V

16V

C110

22 uF 16V

0.1 uF

0.01uF

CD103

4

16V

16V

3 VOLT DECOUPLING

VCC3

0.1 uF

CD42

16V CD43

0.1 uF

16V

0.1 uF

CD46

16V

0.1 uF

CD50

16V

0.1 uF

CD54

16V

0.1 uF

CD56

16V

0.1 uF

CD58

16V

0.1 uF

CD60

16V

0.1 uF

CD65

16V

0.1 uF

CD67

16V

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev
Custom

5

6

Date: Sheet of

0.1 uF

16V

0.1 uF

CD45

16VCD44

0.1 uF

CD47

16V

0.1 uF

CD51

16V

0.1 uF

CD55

16V

0.1 uF

CD57

16V

0.1 uF

CD59

16V

0.1 uF

CD61

16V

0.1 uF

CD66

16V

0.1 uF

CD68

16V

3.3 VOLT AND BULK POWER DECOUPLING

Intel(R) 440BX AGPset

7

37 40Thursday, April 09, 1998

8

1.0

1

A A

2

3

4

5

6

7

8

**THIS TERMINATION DECOUPLING IS OPTIONAL.

TERMINATION VOLTAGE DECOUPLING

VTT

0.1 uF

CD69

16V

B B

CD71

0.1 uF

16V

0.1 uF

CD73

16V

0.1 uF

CD75

16V

0.1 uF

CD77

16V

0.1 uF

CD79

16V

CD81

0.1 uF

16V

C C

0.1 uF

CD83

16V

CD70

CD72

CD74

CD78

CD80

CD82

CD84

0.1 uF

0.1 uF

0.1 uF

CD76

0.1 uF
16V

0.1 uF

0.1 uF

0.1 uF

0.1 uF

16V

16V

16V

16V

16V

16V

16V

D D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

TERMINATION DECOUPLING

Size Document Number Rev
Custom

1

2

3

4

5

6

Date: Sheet of

Intel(R) 440BX AGPset

7

38 40Thursday, April 09, 1998

8

1.0

A

y

]

]

B

C

D

E

4 4

VCC

U25

R293

10K

1

IORD#

2

IOWR#

3

SYSCLK

11

D0

10

D1

9

D2

8

D3

7

D4

6

D5

5

D6

4

D7

44

CS#

43

A0

42

A1

41

A2

37

VID0

36

VID1

35

VID2

34

VID3

23

VID4/NTEST

14

SMI_IN#

15

CHASIS_INTRU

38

BTI#

19

FAN1

18

FAN2

17

FAN3

33

IN0

32

IN1

31

IN2

30

IN3

29

IN4

28

-IN5

27

FB5

26

FB6

25

-IN6
LM79

IOR#17,20,24,35
IOW#17 , 20,24,35

19,20,27

SYSCLK17,24

XD[7:0

PGCS#118,34

VID[4:0

CPUFAN132
PSFAN32
CPUFAN232

SA017,19,20,24,27,35
SA117,19,20,24,27,35
SA217,20,24,27,35

R265

10K

3 3

VCCCORE VTT VCC3 VCC +12V -12V -5V

R266

R267

R268

R269

R270

R271

10K

10K

10K

66.5K

232K

232K

R274

R275

R276

2 2

100K

80.6K

66.5K

MUX for VID pins under construction.

R272

100K

R277

66.5K

XD0
XD1
XD2
XD3
XD4
XD5
XD6
XD7

VID0
VID1
VID2
VID3
VID4

C115

0.1uF

HARDWARE
MONITOR

VCC

LM79

Slave address =
0101101b

VSSD

13

12

VCC5

VSSA

24

SMI#

NMI/IRQ#

PS_BYPASS

RESET#

SDA

SCL

R263

2.7K

40
39

16
22

21
20

Q4

2N3904

D8

SCHOTTKY
BAR54

R264

2.7K

Q3

2N3904

R273

2.7K
R279

2.7K

EXTSMI# 18,34

** NOTE** This device is powered by
5V only and requires a VIH of 3.5V on
it's SMBUS interface. Here is a 5V-3V
SMBUS level translation circuit.

SM BDATA 3,5,8,15,16,18,34
SMBCLK 3,5,8,15,16,18,34

VCC3

1 1

A

B

C

D

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA. 95630

Title

LM 79-75 MONITORS

Size Document Number Rev
Custom

Date: Sheet of

Intel(R) 440BX AGPset 1.0

, April 09, 1998

39 40Thursda

E

A

B

C

D

E

REVISION 1.0 -

4 4

3 3

2 2

Initial public release -- April, 1998.

1 1

INTEL CORPORATION
PLATFORM COMPONENTS DIVISION

1900 PRAIRIE CITY RD. FM5-62
FOLSOM, CA 95630

Title

Size Document Number Rev
Custom

A

B

C

D

Date: Sheet of

Revision History

Intel(R) 440BX AGPset 1.0

40 40

E