MSI MS-7255 Schematics rev2.1

A

Digitally signed by fdsf DN: cn=fdsf, o=fsdfsd, ou=ffsdf, email=fdfsd@fsdff, c=US Date: 2009.10.10 07:56:54 +07'00'

B

MS7255 Version:2.1

C

D

E

TITLE

4 4

3 3

2 2

COVER SHEET BLOCK DIAGRAM PWR MAP/CLOCK MAP GPIO/MEMORY/PCI/HW STRPPING PROCESSOR (LGA775) NORTH BRIDGE P4M900 colay p4m890 SOUTH BRIDGE VT8237A colay VT8237S CLOCK -- REALTEK-RTM870T-580 SYS MEM-DDRII PCI-Express Slot x16 / x1 PCI 1 & 2 Audio - ALC660/861-CD/883/888 LAN-RTL8201CL LAN-RTL8110SC IDE & SATA USB-REAR & FRONT

SHEET

1

2

3

4

5-7

8-11

12-14

15

16

17

18

19

20

21

22

23

CPU:

Intel LGA775

System Chipset:

P4M900 (North Bridge) VT8237A (South Bridge)

On Board Chipset:

BIOS -- LPC ROM/SPI Audio - ALC660/861-CD/883/888 LPC Super I/O -- W83627EHG/DHG LAN --RTL8201CL/RTL8110SC CLOCK -- REALTEK-RTM870T-580

Main Memory:

single-channel --DDRII*2

Expansion Slots:

PCI Express X16 * 1 PCI Express X1 * 1 PCI 2.2Slot * 2

LPC IO-W83627EHG/DHG & BIOS & SPI

24

KB/MS & FAN VGA CONNECTOR

VRM MS7 ACPI CONTROLLER BULK/Decopuling

25

26

27

28

29

PWM(VRM11/FMB 05A):

L6703

1 1

ATX POWER CONNECTOR / FRONT PANEL

HISTORY

Manual Part

A

B

30

31

32

Micro Star Restricted Secret

Title

COVER SHEET

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

C

D

http://www.msi.com.tw

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

E

132

Rev

2.1

of

Block Diagram

1

VRM 11

L6703

Intel LGA775 Processor

3-Phase PWM

FSB

2 DDRII PCI-Express X16

X16

single channel

DIMM

Modules

P4M900

PCI-Express X1

Keyboard

Mouse

IDE Primary

IDE Secondary

A A

USB Port 0

USB Port 1

USB Port 2

USB Port 3

USB Port 4

USB Port 5

USB Port 6

USB Port 7

X1

UltraDMA 33/66/100

USB

VT8237A

MII

V-Link

LPC Bus

LPC SIO Winbond 83627DHG

PCI BUS

LAN RTL8110SC

PCI Slot

1&2

HD Codec ALC883/888/861/662

AZ Link

Floopy

SATA 1 2LAN --RTL8201CL

1

ParallelFlash

Serial

Micro Star Restricted Secret

Title

BLOCK DIAGRAM

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan http://www.msi.com.tw

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

232

Rev

2.1

of

8

7

P4M890 PLATFORM CLOCK GENERATOR MAP

6

5

4

3.3V 5V 5VSB 12V

3

2

1

P4M890 PLATFORM POWER DELIVERY MAP

Intel LGA775 Processor

1.2V VREG

3VSB VREG

DDRII 1.8 VREG

VRM

1.5VSB VREG

2.5V VREG

2.5VSB VREG

1.5V VREG

VTT 0.9V VREG

CPU HOST

D D

C C

CLK

66MHZ DCLKO DCLKI PCI-E CLK

GUICLK-14.318MHZ

PCI-E CLK

CLOCK GENERATOR

MEM CLK

North Bridge P4M890

PCI-E x16 Slot 1

PCI-E x1 Slot 2

DDRII Dimm Slot1,2

14.318MHZ

66MHZ 48MHZ

Sorth Bridge

VT8237A

PCI CLK

PCI Slot 1&2

PROCESSOR VCCP

PROCESSOR 1.2V

NORTH BRIDGE VCC_PCIX NORTH BRIDGE VCCP NORTH BRIDGE NBVCC15 NORTH BRIDGE +2.5V

NORTH BRIDGE SYSEM MEM

1.8V VCC_DDR NORTH BRIDGE RESUME 1.5V_SB

DDR DIMM1 / DIMM2 1.8V DDR VTT 0.9V

SOUTH BRIDGE +2.5V SOUTH BRIDGE VCC3 SOUTH BRIDGE RESUME 2.5V_SB SOUTH BRIDGE RESUME VCC3_SB SOUTH BRIDGE RTC 3.3V

LAN-PHY VCC3_SB

BIOS 5V

PCI CLK

B B

PCI CLK

48MHZ

PCI CLK

LAN

RTL8110SC

FWH

Winbond

83627DHG

HD CODEC VDD5 VREG

LPC SUPER I/O 3.3V LPC SUPER I/O VCC5

CLK 3.3V DDR BUFFER +2.5V

HD CODEC VDD5

A A

Micro Star Restricted Secret

Title

PWR AND CLOCK MAP

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

8

7

6

5

4

3

2

http://www.msi.com.tw

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

1

Rev

2.1

of

332

1

SB-VT8237A

GPI 0 GPI 1 GPO 0 GPO 1 O GPIO A GPIO B GPIO C GPIO D

I I O

I/O I/O I/O I/O

FunctionTypeGPIO Pin

GPI 0 IDE2 CBD GPO 0 GPO 0 HOST CLOCK IOQ Depth PIRQ#B HOST CLOCK GTL pullup

Power well

RESUME RESUME RESUME RESUME MAIN MAIN MAIN MAIN

PCI Config.

DEVICE

PIRQ#B PIRQ#C

PGNT#1 PIRQ#D PIRQ#A

PREQ#0PCI Slot 2

PGNT#0 PIRQ#C PIRQ#D

LAN AD19

PIRQ#E

PREQ#2

PGNT#2

IDSEL

AD21PREQ#1PCI Slot 1 PCICLK2

AD20

CLOCKREQ#/GNT#

CLK GEN PIN OUTMCP1 INT Pin

PCICLK1PIRQ#A

LAN_PCLK 1

7

6

DDR DIMM Config.

DEVICE

DIMM 1 MDCLKA0/A#0

DIMM 2

A A

1010000B

1010001B

CLOCKADDRESS

MDCLKA1/A#1 MDCLKA2/A#2 MDCLKB0/B#0 MDCLKB1/B#1 MDCLKB2/B#2

PCI RESET DEVICE

Signals

PCIRST#

PCIRST#2

HDRST#

Source

SB MS7 MS7

MS7

Target MS7 NB & LAN & SPIO & BIOSPCIRST#1 PCI slot 1-2

Primary, Scondary IDE

Micro Star Restricted Secret

Title

General Purpose Spec

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

1

http://www.msi.com.tw

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

432

Rev

2.1

of

8

7

6

5

4

3

2

1

AN3

RSVD

D12#D8D11#

HD#11

HD#12

AN4

C11

AN6

AN5

RSVD

VSS_SENSE

VCC_SENSE

D10#

D9#

B10

A11

A10

HD#9

HD#10

HD#8

D8#

VTT_OUT_RIGHT

VID6

VID5

VID4

AM5

AL4

AK4

AJ3

AK3

VID6#

VID5#

ITP_CLK1

ITP_CLK0

D7#A7D6#B7D5#B6D4#A5D3#C6D2#A4D1#C5D0#

HD#5

HD#1

HD#6

HD#7

HD#4

HD#3

HD#2

VCC_VRM_SENSE 27 VSS_VRM_SENSE 27

VID2

VID0

VID1

VID3

AL6

AM3

AL5

AM2

VID4#

VID3#

VID2#

VID1#

VID0#

GTLREF0

BPM5# BPM4# BPM3# BPM2# BPM1# BPM0#

PCREQ#

REQ4# REQ3# REQ2# REQ1# REQ0#

TESTHI12 TESTHI11 TESTHI10

TESTHI9 TESTHI8 TESTHI7 TESTHI6 TESTHI5 TESTHI4 TESTHI3 TESTHI2 TESTHI1 TESTHI0

RSVD RSVD

BCLK1# BCLK0#

RS2# RS1# RS0#

AP1# AP0# BR0#

COMP3 COMP2 COMP1 COMP0

DP3# DP2# DP1# DP0#

ADSTB1# ADSTB0# DSTBP3# DSTBP2# DSTBP1# DSTBP0# DSTBN3# DSTBN2# DSTBN1# DSTBN0#

LINT1/NMI

LINT0/INTR

B4

ZIF-SOCK775-15u

HD#0

H1

AG3 AF2 AG2 AD2 AJ1 AJ2

G5 J6 K6 M6 J5 K4

W2 P1 H5 G4 G3 F24 G24 G26 G27 G25 F25 W3 F26 AK6 G6

G28 F28

A3 F5 B3

U3 U2 F3

R1 G2 T1 A13

J17 H16 H15 J16

AD5 R6 C17 G19 E12 B9 A16 G20 G12 C8

L1 K1

VID6 27 VID5 27 VID4 27 VID3 27 VID2 27 VID1 27 VID0 27

CPU_GTLREF0

H_BPM#5 H_BPM#4 H_BPM#3 H_BPM#2 H_BPM#1 H_BPM#0

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

H_TESTHI12 H_TESTHI11 H_TESTHI10 H_TESTHI9 H_TESTHI8

H_TESTHI2_7 H_TESTHI1 H_TESTHI0 RSVD_AK6 RSVD_G6

HRS#2 HRS#1 HRS#0

HBR#0

H_COMP3 H_COMP2 H_COMP1 H_COMP0

NMI_SB INTR

CPU_GTLREF0 6

PECI_CPU 24

HREQ#[0..4] 8

R148 51R/4

R173 51R/4 R126 51R/4 R171 51R/4 R100 130R0402 R142 X_51R/4

CPUCLK# 15 CPUCLK 15

HRS#[0..2] 8

HAP0 8 HBR#0 6,8

R131 X_100R1%/4C70 X_C0.1U16Y0402 R146 X_100R1%/4

R127 49.9R1%4 R159 49.9R1%4

HADSTB#1 8 HADSTB#0 8 HDSTBP#3 8 HDSTBP#2 8 HDSTBP#1 8 HDSTBP#0 8 HDSTBN#3 8 HDSTBN#2 8 HDSTBN#1 8 HDSTBN#0 8

NMI_SB 14 INTR 14

VID1 VID2 VID3 VID4 VID0 VID5 VID6

H_TESTHI12 H_TESTHI9 H_TESTHI10

R60 X_680R04 R66 X_680R04 R70 X_680R04 R73 X_680R04 R56 X_680R04 R74 X_680R04 R76 X_680R04

1 3 5 7

VTT_OUT_LEFT

C75

X_C0.1U16Y0402

RN13

2 4 6 8

8P4R-51R/4

V_FSB_VTT

VTT_OUT_RIGHT 6,7

H_COMP3 H_COMP2

VTT_OUT_LEFT 6,7

VID PULL-HI

VTT_OUT_RIGHT

VTT_OUT_LEFT

R132 49.9R1%4 R145 49.9R1%4

VTT_OUT_RIGHT

C68 C0.1U16Y0402 C67 C0.1U16Y0402

A20M#

1

SMI# HINIT# IGNNE# INTRH_TESTHI11 SLP# NMI_SB STPCLK#

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

V_FSB_VTT

R474 2.7KR0402

R493

C562

X_10KR04

X_C0.1U16Y0402

SSLP# VTT_OUT_LEFT

R532 X_62R/4

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

R119 51R/4 R113 51R/4 R106 51R/4

PLACE BPM TERMINATION NEAR CPU

RN9

8P4R-51R/4

RN11

8P4R-51R/4

SB_THERMTRIP#

Q31 2N3904S

THERMTRIP#

RN3

8P4R-51R/4

RN4

8P4R-51R/4

R196 51R/4

H_BPM#3 H_BPM#5 H_BPM#0 H_BPM#1 H_TDI H_BPM#2 H_TDO H_BPM#4

H_TMS H_TCK H_TRST#

VTT_OUT_RIGHT

SB_THERMTRIP# 13H_TESTHI0 8

V_FSB_VTT

HA#5

HA#3

HA#6

HA#4

L5

D20#D7D19#E9D18#F9D17#F8D16#G9D15#

D11

HD#17

HD#18

HD#14

HD#19

HD#16

HD#15

R118 X_62R/4

AC2

DBR#

D14#

D13#

B12

C12

HD#13

CPU SIGNAL BLOCK

D D

HDBI#[0..3]8

for CONROE CPU

CPU_GTLREF26

CPU_GTLREF2

HIERR#6

FERR#6,14

STPCLK#14

HINIT#14

HDBSY#8

HDRDY#8

HTRDY#8

C C

SLP#14

HADS#8

HLOCK#8

HBNR#8

HIT#8

HITM#8

HBPRI#8

HDEFER#8

TMP_CPUTIN24

TMP_GND24

THERMTRIP#

PROCHOT#6

IGNNE#14

SMI#14

A20M#14

SLP#

R135 0R/4

for CONROE CPU

VTT_OUT_LEFT

CPU_GTLREF36

B B

R120 1KR/4

T5

BSEL06,15 BSEL16,15 BSEL26,15

CPU_GD6,28

CPURST#6,8

HD#[0..63]8

A A

HDBI#0 HDBI#1 HDBI#2 HDBI#3

FERR# STPCLK#

HINIT#

H_TDI H_TDO H_TMS H_TRST# H_TCK

PROCHOT#

IGNNE# SMI# A20M#

R520 1KR/4 R531 51R/4

CPU_GTLREF3

CPU_BOOTVTT_OUT_RIGHT

HD#63 HD#62 HD#61 HD#60 HD#59 HD#58 HD#57 HD#56 HD#55 HD#54

HA#[3..31]8

SSLP#

G11

AB2 AB3

AD3

AD1 AC1

AG1 AE1

AK1 AE8

AH2 AE6 G10

AA2 G29 G30

G23

A8

D19 C20

F2

R3

M3

P3

H4

B2

C1

E3

D2 C3 C2 D4

E4 G8 G7

AF1

AL1

M2

AL2

N2

P2

K3

L2

N5 C9

D16 A20

Y1

V2

H30

N1

B22 A22 A19 B19 B21 C21 B18 A17 B16 C18

CPU1A

DBI0# DBI1# DBI2# DBI3#

EDRDY# IERR# MCERR# FERR#/PBE# STPCLK# BINIT# INIT# RSP#

DBSY# DRDY# TRDY#

ADS# LOCK# BNR# HIT# HITM# BPRI# DEFER#

TDI TDO TMS TRST# TCK THERMDA THERMDC THERMTRIP# GND/SKTOCC# PROCHOT# IGNNE# SMI# A20M# SLP#

RSVD RESERVED0 RESERVED1 RESERVED2 RESERVED3 RESERVED4 RESERVED5

BOOTSELECT LL_ID0 LL_ID1

BSEL0 BSEL1 BSEL2

PWRGOOD RESET# D63#

D62# D61# D60# D59# D58# D57# D56# D55# D54#

B15

HD#53

D53#

C14

HD#52

D52#

C15

HD#51

D51#

HD#50

A14

D50#

D17

HD#49

AJ6

D49#

D20

HD#48

AJ5

A35#

D48#

G22

HD#47

AH5

A34#

D47#

D22

HD#46

AH4

A33#

D46#

E22

HD#45

HA#31

AG5

A32#

D45#

G21

HD#44

HA#30

AG4

A31#

D44#

F21

HD#43

HA#29

AG6

A30#

D43#

E21

HD#42

HA#28

AF4

A29#

D42#

F20

HD#41

HA#27

AF5

A28#

D41#

E19

HD#40

HA#26

AB4

A27#

D40#

E18

HD#39

HA#25

AC5

A26#

D39#

F18

HD#38

HA#24

AB5

A25#

D38#

F17

HD#37

HA#23

AA5

A24#

D37#

G17

HD#36

HA#22

AD6

A23#

D36#

G18

HD#35

HA#21

AA4

A22#

D35#

E16

HD#34

HA#20

A21#

D34#

HD#33

HA#18

HA#19

HA#17

A20#Y4A19#Y6A18#W6A17#

D33#

D32#

D31#

E15

G16

G15

HD#32

HD#31

HD#30

HA#12

HA#16

HA#13

HA#14

HA#15

AB6

A16#W5A15#V4A14#V5A13#U4A12#U5A11#T4A10#

D30#

D29#

D28#

D27#

D26#

F15

F14

E13

D13

G14

G13

HD#26

HD#25

HD#29

HD#27

HD#28

HA#11

D25#

F12

HD#24

HA#10

U6

D24#

F11

HD#23

HA#9

D23#

HD#22

HA#8

HA#7

A9#T5A8#R4A7#M4A6#L4A5#M5A4#P6A3#

D22#

D21#

E10

D10

HD#20

HD#21

Micro Star Restricted Secret

Title

Intel LGA775 CPU - Signals

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

8

7

6

5

4

3

http://www.msi.com.tw

2

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

532

1

Rev

2.1

of

8

7

6

5

4

3

2

1

VCCP

AH27

AH26

AH25

AH22

AH21

AH19

AH18

AH15

AH14

AH12

AH11

AG9

AG8

AG30

AG29

AG28

AG27

AG26

AG25

AG22

AG21

AG19

AG18

AG15

AG14

AG12

AG11

AF9

AF8

AF22

AF21

AF19 AF18 AF15 AF14 AF12 AF11

AE9 AE23 AE22 AE21 AE19 AE18 AE15 AE14 AE12 AE11

AD8 AD30 AD29 AD28 AD27 AD26 AD25 AD24 AD23

AC8 AC30 AC29 AC28 AC27 AC26 AC25 AC24 AC23

AB8

AA8

VCCP

CPU1B

VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC VCC

VCC

VCCU8VCCV8VCC

VCC

VCCW8VCC

VCC

Y8

Y30

Y23

Y24

Y25

Y26

Y27

Y28

Y29

W30

W29

W28

W27

W26

W25

W24

W23

U26

U27

U28

U29

U30

VCCP

D D

C C

AH28

AH29

AH30

AH8

AH9

AJ11

AJ12

AJ14

AJ15

AJ18

AJ19

AJ21

AJ22

AJ25

AJ26

AJ8

AJ9

AK11

AK12

AK14

AK15

AK18

AK19

AK21

AK22

AK25

AK26

AK8

AK9

AL11

AL12

AL14

AL15

AL18

AL19

AL21

AL22

AL25

AL26

AL29

AL30

AL8

AL9

AM11

AM12

AM14

AM15

AM18

AM19

AM21

AM22

AM25

AM26

AM29

AM30

AM8

AM9

AN11

AN12

AN14

AN15

AN18

AN19

AN21

AN22

VCC

VCCA VSSA RSVD

VCC-IOPLL

VTTPWRGD

VTT_OUT VTT_OUT

VTT_SEL

RSVD/VTT_PKGSENSE

VCC

VCCJ8VCCJ9VCC

VCC

VCCK8VCCL8VCC

VCC

VCCM8VCC

VCC

VCCN8VCCP8VCCR8VCC

VCC

VCCT8VCC

VCC

J10

J11

J12

J13

J14

J15

J18

J19

J20

J21

J22

J23

J24

J25

J26

J27

J28

J29

T30

U23

U24

U25

N30

N23

N24

N25

N26

N27

N28

N29

M30

M29

M28

M27

M26

M25

M24

M23

K27

K28

K29

K30

T23

T24

T25

T26

T27

T28

T29

J30

K23

K24

K25

K26

AN9

AN8

AN30

AN29

AN26

HS11HS22HS33HS4

AN25

VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT VTT

4

H_VCCA

A23

H_VSSA

B23

H_VCCPLL

D23

H_VCCA

C23

A25 A26 A27 A28 A29 A30 B25 B26 B27 B28 B29 B30 C25 C26 C27 C28 C29 C30 D25 D26 D27 D28 D29 D30

VTT_PWG

AM6

VTT_OUT_RIGHT

AA1

VTT_OUT_LEFT

J1 F27

F29

ZIF-SOCK775-15u

VTT_SEL

FOR CONROE CPU

C360

C1U16Y

VTT_SEL 28

0 1

V_FSB_VTT

TEJ/PSC

RSVD

R626 X_0R

R6250R

1.5V

V_FSB_VTT

CAPS FOR FSB GENERIC

C97 C0.1U16Y0402 C104 C1U16Y C125 10U10Y/8 C110 X_10U10Y/8

VTT_OUT_RIGHT CPU_GTLREF0

B B

VTT_OUT_RIGHT CPU_GTLREF1

VTT_OUT_LEFT

FOR CONROE CPU

VTT_OUT_LEFT CPU_GTLREF3

A A

8

R140 124R1%04

R139 124R1%04

R343 124R1%04

R290 124R1%04

R143

210R1%04

R141

210R1%04

R347

210R1%04

R382

210R1%04

R144 10R/4

C77

C1U16Y

R137 10R/4

C79

C1U16Y

R404 X_10R/4

C355

C1U16Y

R399 X_10R/4

C357

C1U16Y

7

C78

C220P50N04

C76

C220P50N04

CPU_GTLREF2

C187

C220P50N04

C354

C220P50N04

CPU_GTLREF0 5

CPU_GTLREF1 7

CPU_GTLREF2 5

CPU_GTLREF3 5

6

V_FSB_VTT

VTT_OUT_RIGHT5,7

VTT_OUT_LEFT5,7

V_FSB_VTT

5

VTT_OUT_RIGHT

VTT_OUT_LEFT

RN7

1 3 5 7

8P4R-62R/4

R65 130R/4

R134 100R/4 R150 62R/4 R169 62R/4

2

FERR#

4 6

HIERR#

8

CPU_GD HBR#0 CPURST#

FERR# 5,14 HIERR# 5

FERR#

C82

X_C100P50N04

FSBSEL RESISTOR CAN BE REMOVED IF ONLY TEJAS

AND CEDAR MILL ARE SUPPORTED

V_FSB_VTT

RN20

1 3 5 7

BSEL2

2

BSEL0

4

BSEL1

6 8

8P4R-470R/4

4

PROCHOT#

PROCHOT# 5

CPU_GD 5,28 HBR#0 5,8 CPURST# 5,8

BSEL2 5,15 BSEL0 5,15 BSEL1 5,15

PLACE COMPONENTS AS CLOSE AS POSSIBLE TO PROCESSOR SOCKET TRACE WIDTH TO CAPS MUST BE SMALLER THAN 12MILS

V_FSB_VTT

VID_GD#27,28

L4 X_10U100m_0805

CP13 X_COPPER

VTT_OUT_RIGHT

VCC5_SB

R29

1KR/4

R41 10KR/4

C98

10U10Y/8

R28

680R/4

Q2 N-PMBS3904_SOT23

Micro Star Restricted Secret

Title

Intel LGA775 CPU - Power

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

3

http://www.msi.com.tw

2

H_VSSA

C105

X_C1U16Y

H_VCCA

1.25V VTT_PWRGOOD

VTT_PWG

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

Rev

2.1

632

of

1

8

FOR CONROE CPU

7

R52651R/4

R5241KR0402

R52524.9R1%/4

R5181KR0402

6

5

4

3

2

1

D D

R623 X_51R0402

VTT_OUT_LEFT

GTL_DET 8

COMP4

COMP5

MSID1

MSID0

RSVDJ3RSVDN4RSVD

COMP4

VSS

AF3

AF30

VSS

P5

AF6

T2

VSS

AF7

MSID1V1MSID0

COMP5

VSS

AG10

W1

VSS

AG13

COMP6

Y3

COMP6

VSS

AG16

AG17

VSS

VSSY7VSSY5VSSY2VSSW7VSSW4VSSV7VSSV6VSS

VSS

AH1

AG7

AH10

AG20

AG23

AG24

VSS

AH13

VSS

AH16

V30

VSS

AH17

VSSV3VSS

VSS

AH20

V29

VSS

AH23

V28

VSS

AH24

V27

AH3

VSS

V26

VSS

AH6

V25

V24

V23

VSS

VSSU7VSSU1VSST7VSST6VSST3VSSR7VSSR5VSS

VSS

AH7

AJ10

AJ13

AJ16

AJ17

VSS

AJ20

VSS

AJ23

VSS

AJ24

VSS

AJ27

VSS

AJ28

VSS

R30

AJ29

VSS

R29

AJ30

VSS

H29

H24

H25

H26

H27

R28

R27

R26

R25

R24

R23

P30

P29

P28

P27

P26

P25

P24

VSS

VSSR2VSSP7VSSP4VSS

VSS

P23

VSS

VSSN7VSSN6VSSN3VSSM7VSSM1VSSL7VSSL6VSS

L30

L29

L28

L27

VSSL3VSS

VSS

K2

L26

L25

L24

L23

K5

VSS

VSSK7VSS

H28

VSS

VSSH3VSSH6VSSH7VSSH8VSSH9VSSJ4VSSJ7VSS

GTLREF_SEL

VSS

VID7#

VSS

AJ4

AJ7

AK10

AK13

AK16

AK17

AK2

AK20

AK23

AK24

AK27

AK28

AK29

AK30

AK5

AK7

AL10

AL13

AL16

AL17

AL20

AL23

AL24

AL27

AL28

AL3

AL7

AM1

AM10

AM13

AM16

AM17

AM20

AM23

AM24

AM27

AM28

AM4

AM7

AN1

AN10

AN13

AN16

AN17

AN2

AN20

AN23

AN24

AN27

H21

H22

H23

VSS

VID_SELECT

VSSB1VSS

AN7

AN28

H18

H19

H20

VSS

B11

B14

H17

VSS

H14

VSS

H13

VSS

H12

VSS

H11

VSS

H10

VSS

G1

VSS

F7

VSS

F4

VSS

F22

VSS

F19

VSS

F16

VSS

F13

VSS

F10

VSS

E8

VSS

E29

VSS

E28

VSS

E27

VSS

E26

VSS

E25

VSS

E20

VSS

E2

VSS

E17

VSS

E14

VSS

E11

VSS

D9

VSS

D6

VSS

D5

VSS

D3

VSS

D24

VSS

D21

VSS

D18

VSS

D15

VSS

D12

VSS

C7

VSS

C4

VSS

C24

VSS

C22

VSS

C19

VSS

C16

VSS

C13

VSS

C10

VSS

B8

VSS

B5

VSS

B24

VSS

B20

VSS

B17

VSS

ZIF-SOCK775-15u

R530 51R/4

FOR CONROE CPU

R622X_1KR0402

VTT_OUT_LEFT

COMP7

AE3

AC4

AE4

D14

VSS

AE29

RSVD

VSS

AE30

COMP7

VSS

AE5

RSVD

VSS

AE7

RSVDD1RSVD

VSS

AF10

AF13

E23

VSS

AF16

CPU1C

A12

VSS

A15

VSS

A18

AA23 AA24 AA25 AA26 AA27 AA28 AA29

AA30

AB23 AB24 AB25 AB26 AB27 AB28 AB29 AB30

AC3 AC6 AC7 AD4

AD7 AE10 AE13 AE16 AE17

AE20 AE24 AE25 AE26 AE27 AE28

VSS

A2

VSS

A21

VSS

A24

VSS

A6

VSS

A9

VSS VSS VSS VSS VSS VSS VSS VSS

AA3

VSS VSS

AA6

VSS

AA7

VSS

AB1

VSS VSS VSS VSS VSS VSS VSS VSS VSS

AB7

VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS

AE2

VSS VSS VSS VSS VSS VSS VSS

FOR CONROE CPU

R517

1KR0402

C C

B B

CS_GTLREF

E24

RSVD

RSVDE5RSVDE6RSVDE7RSVD

CS_GTLREF

VSS

AF17

AF20

AF23

VSS

AF24

F23

AF25

VSS

AF26

COMP8

RSVDF6RSVD

VSS

CPU_GTLREF1

H2

J2

B13

GTLVREF1

VSS

AF27

AF28

AF29

VTT_OUT_LEFT 5,6

COMP4 COMP5 COMP6 COMP7

R54 X_680R04

A A

CS_GTLREF

MSID1 MSID0

VID7 VID_SELECT

R136 49.9R1%/4 R130 49.9R1%/4 R123 49.9R1%/4 R116 49.9R1%/4

R84 X_680R04 R59 X_680R04

R175 0R04

R125 51R/4 R124 51R/4

GTLVREF_NB

CPU_GTLREF1

8

7

VTT_OUT_RIGHT 5,6

GTLVREF_NB 8

CPU_GTLREF1 6

T6

6

5

4

VID7

3

VID_SELECT

VID_SELECT 27VID7 27

Micro Star Restricted Secret

Title

Intel LGA775 CPU - GND

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan http://www.msi.com.tw

2

MS-7255

Last Revision Date:

Friday, November 17, 2006

Sheet

732

1

Rev

2.1

of

A

A17

A18

A19

A20

A21

B17

VTT

P4M890

GNDA1GNDA2GNDA8GND

GND

A3

A10

B18

VTT

GND

A22

A25

A27

U9A

HA#3

HRS#0 HRS#1 HRS#2

HDBI#0 HDBI#1 HDBI#2 HDBI#3

GTLCOMPP

GTLCOMPN

V_FSB_VTT

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

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

R204

360R1%0402

AA36 AA34

AA32

AB31

AC29 AC30

M33 N34 R33

T33

R34

P36

P34 N35 R36 U36 U34 U35

T30 U32 W35

V32

V36

V34 W36 W34

V33

Y35

Y33 W32

V31 W31

Y31

R35 W33

L35

K35

J32 M34

K32

J33

K33

L36

L34

J34 M35

T32

T31 R32 M32 M31

J35 N36

J36 C31

E35 G27 D22

F22

U30

J25

G22 H22

HA03# HA04# HA05# HA06# HA07# HA08# HA09# HA10# HA11# HA12# HA13# HA14# HA15# HA16# HA17# HA18# HA19# HA20# HA21# HA22# HA23# HA24# HA25# HA26# HA27# HA28# HA29# HA30# HA31# HA32# HA33#

HADSTB0P# HADSTB1#

ADS# BNR# BPRI# BREQ0# DBSY# DEFER# DRDY# HIT# HITM# HLOCK# HTRDY#

HREQ0# HREQ1# HREQ2# HREQ3# HREQ4# RS0# RS1# RS2#

HDBI0# HDBI1# HDBI2# HDBI3#

CPURST# HCLK+

HCLK-

GTLVREF0 GTLVREF1

GTLCOMPP GTLCOMPN

HA#[3..31]5

4 4

HADSTB#05 HADSTB#15

HADS#5 HBNR#5

HBPRI#5

HBR#05,6

HDBSY#5

HDEFER#5

HDRDY#5

HIT#5

HITM#5

HREQ#[0..4]5

HRS#[0..2]5

HDBI#[0..3]5

C181

C0.1U16Y0402

HLOCK#5 HTRDY#5

CPURST#5,6

NBHCLK15

NBHCLK#15

GTLVREF_NB

R205

180R1%04

3 3

GTLVREF_NB7

2 2

C180

C0.1U16Y0402

B

V_FSB_VTT

B19

B20

B21

C17

C18

C19

C20

C21

D17

D18

D19

D20

D21

E17

E18

E19

E20

E21

F17

F18

F19

F20

F21

G17

G18

G19

G20

G21

VTT

Rev1.9

GND

GNDB2GNDB3GNDB4GND

GNDC2GNDC3GNDC4GND

GND

GNDD4GNDD5GNDD6GNDD8GND

C5

A29

A31

A33

A35

D3

B36

C26

C27

HD00#

VTT

HD01# HD02# HD03# HD04# HD05# HD06# HD07# HD08# HD09# 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# HD42# HD43# HD44# HD45# HD46# HD47# HD48# HD49# HD50# HD51# HD52# HD53# HD54# HD55# HD56# HD57# HD58# HD59# HD60# HD61# HD62# HD63#

HDSTB0P# HDSTB0N#

HDSTB1P# HDSTB1N#

HDSTB2P# HDSTB2N#

HDSTB3P# HDSTB3N#

HADSTB0N#

CPUSLPIN#

DPWR#

GND

GNDE2GNDE4GND

D11

D23

D24

D29

D31

D32

D34

HD#0

B35

HD#1

A36

VTT

HD#2

C33

HD#3

C32

HD#4

E31

HD#5

B34

HD#6

B33

HD#7

A34

HD#8

D30

HD#9

A30

HD#10

B31

HD#11

B30

HD#12

E30

HD#13

C29

HD#14

B29

HD#15

C30

HD#16

D36

HD#17

F36

HD#18

G36

HD#19

H34

HD#20

H35

HD#21

F35

HD#22

G35

HD#23

C36

HD#24

D35

HD#25

F34

HD#26

F33

HD#27

G34

HD#28

G33

HD#29

E33

HD#30

H32

HD#31

G32

HD#32

E28

HD#33

E29

HD#34

D28

HD#35

D27

HD#36

C28

HD#37

H28

HD#38

G28

HD#39

F28

HD#40

E27

HD#41

D26

HD#42

D25

HD#43

E25

HD#44

F25

HD#45

G25

HD#46

H26

HD#47

H25

HD#48

B23

HD#49

B25

HD#50

E23

HD#51

B27

HD#52

B28

HD#53

A28

HD#54

B24

HD#55

B26

HD#56

A26

HD#57

C23

HD#58

C22

HD#59

A23

HD#60

G23

HD#61

A24

HD#62

B22

HD#63

E22 A32

B32 C35

C34 G26

E26 C24

C25

T35 AB32 L31

GND

E6

E5

T7

C

HD#[0..63] 5

HDSTBP#0 5 HDSTBN#0 5

HDSTBP#1 5 HDSTBN#1 5

HDSTBP#2 5 HDSTBN#2 5

HDSTBP#3 5 HDSTBN#3 5

HAP0 5

R502 X_4.7KR0402

FOR P4M900

For dual core

GTL_DET7

H_TESTHI05

V_FSB_VTT

+12V

C177 0.01U25Y/4 C144 0.01U25Y/4 C521 10U10Y/8 C524 10U10Y/8 C523 10U10Y/8 C515 10U10Y/8 C516 10U10Y/8 C164 C0.1U16Y0402 C188 C0.1U16Y0402

VCCP

R247 390R1%0402

R194

10KR/4

DS

G

Q34 N-2N7002_SOT23

VCC3

R251 X_249R1%0402-LF

DS

Q35

G

X_N-2N7002_SOT23

H_TESTHI0

NB Heatsink

2

NB1_X1

HEATSINK-38X36X25mm

GTLVREF_NB

V_FSB_VTT

VCC3

R256 X_110R1%0402

R275 X_61.9R1%0402-LF

1

D

R276

124R1%/4

R288

210R1%/4

E

1 1

Micro Star Restricted Secret

Title

P4M890-1(HOST)

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

A

B

C

D

http://www.msi.com.tw

MS-7255

E

Last Revision Date:

Friday, November 17, 2006

Sheet

Rev

2.1

of

832

A

VCC_DDR

B

C

C88

C166

C517 C0.1U25Y

D

C518 C0.1U25Y

VCC_DDR

C132

C174

C304

C1U16Y

E

C4700P50X6

AC24

AD17

AD19

AD21

AJ28

AK25

AK27

AK29

AL26

AL28

AL30

AM25

AM29

AM31

AN26

AN27

AA24

AB24

AG34

AG35

AG32

AM35 AM34

AM24

AM23 AM22

AM19

AM20 AM18

AM17 AM16

AM15

AM14

AF35 AJ36

AK35 AF34

AJ34 AK34

AF32 AH30 AJ31 AF31 AH32 AH31 AJ32 AK33 AL36 AP35 AL34 AL35

AT36 AK24

AL23 AJ22

AK23 AN24

AK20 AK19

AR18 AL20

AL18 AR17

AT16 AN16 AN15

AP17

AN22 AN21 AP19 AT18 AT21 AR21 AT19 AR19 AR14

AP13 AR11 AP14 AN14 AT12 AP12

AH36 AF30 AN36 AN23 AN20 AT15 AP21 AT13

U9B

MD00 MD01 MD02 MD03 MD04 MD05 MD06 MD07 MD08 MD09 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

DQM0# DQM1# DQM2# DQM3# DQM4# DQM5# DQM6# DQM7#

P4M890

GNDE7GND

GND

E9

E34

VCCMEM

GND

GNDF1GNDF2GNDF4GNDF5GNDF6GNDF7GND

E36

DQM0 DQM1 DQM2 DQM3 DQM4 DQM5 DQM6 DQM7

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

MD62 MD63

4 4

3 3

2 2

MD[0:63]16

DQM[0:7]16

AD16

VCCMEM

AD18

VCCMEM

AD20

VCCMEM

GND

F10

F14

AD23

AD22

VCCMEM

GND

F23

F24

AD24

AJ26

VCCMEM

GND

F26

F27

VCCMEM

GND

F29

F30

VCCMEM

GND

GNDG1GNDG2GNDG4GNDG7GND

F32

VCCMEM

AM27

VCCMEM

G11

G29

VCCMEM

GND

GNDH2GNDH4GNDH7GND

AN31

VCCMEM

H23

H24

AN33

AP30

VCCMEM

GND

H27

H31

AR26

AR33

VCCMEM

GND

H36

H33

AT35

AT25

AT28

AT31

VCCMEM

MA00 MA01 MA02 MA03 MA04 MA05 MA06 MA07 MA08 MA09 MA10 MA11 MA12 MA13

SRAS# SCAS#

SWE#

CS0# CS1# CS2# CS3#

CKE0 CKE1 CKE2 CKE3

ODT0 ODT1 ODT2 ODT3

DQS0+

DQS0-

DQS1+

DQS1-

DQS2+

DQS2-

DQS3+

DQS3-

DQS4+

DQS4-

DQS5+

DQS5-

DQS6+

DQS6-

DQS7+

DQS7-

MCLKI

MCLKO+

MCLKO-

MEMVREF0 MEMVREF1

MEMDET

DMCOMP

GNDJ2GNDJ4GNDJ5GNDJ6GND

AR28

BA0

AP29

BA1

AP33

BA2

MAA0

AT29

MAA1

AR30

MAA2

AR29

MAA3

AT30

MAA4

AN30

MAA5

AP31

MAA6

AR31

MAA7

AT32

MAA8

AP32

MAA9

AN32

MAA10

AN29

MAA11

AR32

MAA12

AT33

MAA13

AR25 AN28

AR27 AP28

AT27 AP27 AT24 AP26

CKEA0

AT34

CKEA1

AP34

CKEA2

AR34

CKEA3

AN34 AT26

AP25 AR24 AN25

AJ35 AH35 AH33 AH34 AR36 AP36 AR22 AP23 AP18 AN18 AP15 AR15 AP20 AR20 AR12 AR13

AB34

AB35 AB36

AG29 AJ18

AF36

AM33

DMCOMP

J7

MCLKIT

M_CLKO+MD61

MVREF_NB

MEMDET

R185 301R1%0402

DQS0 16 DQS0# 16 DQS1 16 DQS1# 16 DQS2 16 DQS2# 16 DQS3 16 DQS3# 16 DQS4 16 DQS4# 16 DQS5 16 DQS5# 16 DQS6 16 DQS6# 16 DQS7 16 DQS7# 16

R183 22R0402 R184 22R0402

1: DDR2 0: DDR1

R186 1KR0402 R188 X_1KR0402

MAA[0:13] 16

SRASA 16 SCASA 16 SWEA 16

CS0 16 CS1 16 CS2 16 CS3 16

CKEA0 16 CKEA1 16 CKEA2 16 CKEA3 16

ODT0 16 ODT1 16 ODT2 16 ODT3 16

VCC_DDR

BA0 16 BA1 16 BA2 16

C138 C5P50N0402 C127 C5P50N0402 C128 C5P50N0402 C120 C5P50N0402 C119 C5P50N0402 C109 C5P50N0402 C108 C5P50N0402 C100 C5P50N0402 C99 C5P50N0402 C95 C5P50N0402 C137 C5P50N0402 C96 C5P50N0402 C92 C5P50N0402 C167 C5P50N0402 C142 C5P50N0402 C141 C5P50N0402 C91 C5P50N0402 C147 C5P50N0402 C159 C5P50N0402 C146 C5P50N0402

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

BA0 16 BA1 16 BA2 16 SRASA 16 SCASA 16 SWEA 16

PULL DOWN GND OR PULL UP +1.8VDIMM

CLOSE TO DIMM

NOTE: DQS/DQS# => OTHER:W:S:W:OTHER=15:10:5:10:15

MCLKO+/- as short as passable MCLKIT = DCLKx + 2 "

MCLKIT 15

MCLKOT 15 MCLKOC 15

C151 C5P50N0402 R181 C150 C5P50N0402 C157 C5P50N0402

Near to NB chip

VCC_DDR

C224 C0.1U25Y

Test Point

(Place near their respective balls of NB)

VCC_DDR

R178

150R1%0402

MVREF_NBM_CLKO-

150R1%04

VCC_DDR

C183 C1000P50X0402

C184 C1000P50X0402

C179 C1000P50X0402

NEAR PM890

C4700P50X6

C1000P50X0402

C226 C0.1U25Y

C154

C163

C162

C1000P50X0402

Close to ball

VCC_DDR

C230 C0.1U25Y

C1000P50X0402

C519 C0.1U25Y

C134 C0.1U16Y0402 C94 C0.1U16Y0402

C133 C1000P50X0402 C89 C1000P50X0402

C121 C0.1U16Y0402

C118 C1000P50X0402 C85 C1000P50X0402

NEAR DIMM

VCC_DDR

C161 C0.1U16Y0402 C153 C0.1U16Y0402 C160 C1000P50X0402 C145 C1U16Y C136 C1U16YC129 C0.1U16Y0402

1 1

Micro Star Restricted Secret

Title

P4M890-2(MEM)

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

A

B

C

D

http://www.msi.com.tw

MS-7255

E

Last Revision Date:

Friday, November 17, 2006

Sheet

Rev

2.1

of

932

4

VCC3

W13

Y13

AA13

AB13

AC13

AJ1

AJ2

AJ3

AJ4

AJ5

VCC33PEX

GND

M2

L33

VCC33PEX

GNDM5GNDM7GND

GNDN2GNDN5GNDN7GNDP2GNDP7GND

M36

AJ6

AJ7

AK1

VCC33PEX

AK3

AK4

AK2

AK5

AK6

AK7

VCC33PEX

PEXRX00+/DVP0D11

PEXRX00-/DVP0D10

PEXRX01+/DVP0D09

PEXRX01-/DVP0D08

PEXRX02+/DVP0D07

PEXRX02-/DVP0D06

PEXRX03+/DVP0CLK

PEXRX03-/DVPTVCLKR

PEXRX04+/DVP0D05

PEXRX04-/DVP0D04

PEXRX05+/DVP0D03

PEXRX05-/DVP0D02

PEXRX06+/DVP0D01

PEXRX06-/DVP0D00

PEXRX07+/DVP0DE

PEXRX07-/DVP0HS

PEXRX08+/DVP1D11

PEXRX08-/DVP1D10

PEXRX09+/DVP1D09

PEXRX09-/DVP1D08

PEXRX10+/DVP1D07

PEXRX10-/DVP1D06

PEXRX11+/DVP1CLK

PEXRX11-/DVP1D05

PEXRX12+/DVP1D04

PEXRX12-/DVP1D03

PEXRX13+/DVP1D02

PEXRX13-/DVP1D01

PEXRX14+/DVP1D00

PEXRX14-/DVP1DE

PEXRX15+/DVP1HS

PEXRX15-/DVP1VS

GND

GNDP5GND

P6

P14

P15

P16

P17

PEXTX00+

PEXTX00-

PEXTX01+

PEXTX01-

PEXTX02+

PEXTX02-

PEXTX03+

PEXTX03-

PEXTX04+

PEXTX04-

PEXTX05+

PEXTX05-

PEXTX06+

PEXTX06-

PEXTX07+

PEXTX07-

PEXTX08+

PEXTX08-

PEXTX09+

PEXTX09-

PEXTX10+

PEXTX10-

PEXTX11+

PEXTX11-

PEXTX12+

PEXTX12-

PEXTX13+

PEXTX13-

PEXTX14+

PEXTX14-

PEXTX15+

PEXTX15-

PEXTX16+

PEXTX16-

PEXRX16+

PEXRX16-

PEXCLK+

PEXCLK-

INTR#

PEXDET PEXWAKE# PEXHPSCI#

PEXPMESCI#

TCSEN# PEXCOMP0 PEXCOMP1

PEXREXT0 PEXREXT1

PEXCOMP2

PEXREXT2

GND

P18

P19

P20

B1 C1 D1 E1 H1 J1 K1 L1 L4 M4 M1 N1 N4 P4 P1 R1 T1 U1 U4 V4 V1 W1 W4 Y4 Y1 AA1 AB1 AC1 AC4 AD4 AD1 AE1

E3 D2 F3 G3 H3 J3 K3 L3 K6 L6 M3 N3 M6 N6 P3 R3 T3 U3 T6 U6 V3 W3 W6 V6 Y3 AA3 AA6 AB6 AB3 AC3 AD3 AE3

AG1 AF1

AF4 AE4

AG6 AF6

B6 B5 AC34 AC36 AC33 D7 H5 AD7 G5 AD6 AH1 AH2

PEDET

TCSEN# PE0RCOMP0 PE0RCOMP1 PE0REXT0 PE0REXT1 PE1RCOMP PE1REXT

T13

U13

V13

R13

N13

N14

P13

U9C

NVLAD0 NVLAD1 NVLAD2 NVLAD3 NVLAD4 NVLAD5 NVLAD6 NVLAD7

VBE0

UPSTB

UPSTB#

DNSTB

DNSTB# UPCMD

DNCMD

LVREF_NB

LCOMPP

LCOMPN

TESTIN_NB

AD13 AD14 AD15

AA12 AB12 AB25 AC12 AC25 AD12

AD31 AD35

AE36 AD36 AD34

AC31 AD30

AC32 AD29

AP1 AN3

AT3 AR4 AN2 AN1 AP5 AN5

AN4

AT2 AR3

AR1

AT1 AR5

AP4

AL6 AM5

AL5

AL4

M12 M13 M14 M15 M16 M20 M21 M22 M23 M24

N12

N25

P12

P25

R12

T12

T25

U12

U25

V12 W12 W25

Y12

Y25

G6 AE6 AH5 AH3

AF7

AE7 AH6 AH4

H6

VD00 VD01

VCC33PEX

VD02 VD03 VD04 VD05 VD06 VD07

VBE#

UPSTB+ UPSTB-

DNSTB+ DNSTB-

UPCMD DNCMD

VLVREF VLCOMPP VLCOMPN

VCLK VCC15VL

VCC15VL VCC15VL VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15 VCC15

VSUS15 SUSST#

TESTIN# RESET# PWROK

VCCA33HCK VCCA33MCK

VCCA33PEX0 VCCA33PEX1 VCCA33PEXCK VCCA33PEX2 VSUS15PEX

P4M890

GNDAHCK GNDAMCK GNDAPEX0 GNDAPEX1 GNDAPEXCK GNDAPEX2

GND

K4

K2

VCC33PEX

GNDK5GNDK7GND

K31

K34

VCC33PEX

GND

GNDL2GNDL7GND

K36

VCC33PEX

GNDL5GND

L32

VLAD014 VLAD114

UPSTB14

UPSTB#14

DNSTB14

DNSTB#14 UPCMD14

DNCMD14

R227 270R1%/4

R225 340R1%/4

GCLK_NB15

+1.5VSUS

PCIRST#121,24,28

PWROK_NB13

+1.5VSUS

VLAD214 VLAD314 VLAD414 VLAD514 VLAD614 VLAD714

VBE014

SUSST13

1.5V

VCCA33HCK VCCA33MCK

VCCA33PE00 VCCA33PE01 VCCA33PE VCCA33PE1

5 5

1.5V

4 4

3 3

2 2

3

PE0TX0+ 17 PE0TX0- 17 PE0TX1+ 17 PE0TX1- 17 PE0TX2+ 17 PE0TX2- 17 PE0TX3+ 17 PE0TX3- 17 PE0TX4+ 17 PE0TX4- 17 PE0TX5+ 17 PE0TX5- 17 PE0TX6+ 17 PE0TX6- 17 PE0TX7+ 17 PE0TX7- 17 PE0TX8+ 17 PE0TX8- 17 PE0TX9+ 17 PE0TX9- 17 PE0TX10+ 17 PE0TX10- 17 PE0TX11+ 17 PE0TX11- 17 PE0TX12+ 17 PE0TX12- 17 PE0TX13+ 17 PE0TX13- 17 PE0TX14+ 17 PE0TX14- 17 PE0TX15+ 17 PE0TX15- 17

PE0RX0+ 17 PE0RX0- 17 PE0RX1+ 17 PE0RX1- 17 PE0RX2+ 17 PE0RX2- 17 PE0RX3+ 17 PE0RX3- 17 PE0RX4+ 17 PE0RX4- 17 PE0RX5+ 17 PE0RX5- 17 PE0RX6+ 17 PE0RX6- 17 PE0RX7+ 17 PE0RX7- 17 PE0RX8+ 17 PE0RX8- 17 PE0RX9+ 17 PE0RX9- 17 PE0RX10+ 17 PE0RX10- 17 PE0RX11+ 17 PE0RX11- 17 PE0RX12+ 17 PE0RX12- 17 PE0RX13+ 17 PE0RX13- 17 PE0RX14+ 17 PE0RX14- 17 PE0RX15+ 17 PE0RX15- 17

PETP1 17 PETN1 17

PERP1 17 PERN1 17

PECLK_NB 15 PECLK_NB# 15

PIRQ#H 12 PEWAKE# 13,17

PEHPSCI 13,14 PEPMESCI 13

VCC3

X_120L600m_250

VCC3

X_120L600m_250

R226 249R1%0402 R229 249R1%0402 R222 10.7KR1%0402 R228 10.7KR1%0402 R231 249R1%0402 R230 10.7KR1%0402

FB16

CP25 X_COPPER

C240

FB15

CP24 X_COPPER

C241

TCSEN#

C237

C22U6.3X1206

C235

C22U6.3X1206

PEDET

VCCA33PE

C1000P50X0402

VCCA33PE1

C1000P50X0402

R223 4.7KR0402

R224 4.7KR0402

C232

C0.1U16Y0402

C236

C0.1U16Y0402

1.5V

C219 C0.1U16Y0402 C211 C0.1U16Y0402 C222 C0.1U16Y0402 C220 C0.1U16Y0402 C210 C0.1U16Y0402

Decoupling capacitors

VCC3

X_120L600m_250

FB14

CP23 X_COPPER

C229

VCC3

X_120L600m_250

FB17

CP26 X_COPPER

C242

1.5V

R233

1.4KR1%0402

LVREF_NB

R234

1KR1%0402

C22U6.3X1206

C245

C22U6.3X1206

VCCA33PE00

C223

C1000P50X0402

VCCA33PE01

C1000P50X0402

C228

C0.1U16Y0402

2

C221

C239

C0.1U16Y0402

TESTIN_NB

X_120L600m_250

C0.1U16Y0402

VCC3

FB8

CP16 X_COPPER

VCCA33HCK

C155

C259

C1U16Y

C1000P50X0402

VCCA33HCK

CP28 X_COPPER

VCCA33MCK

C143

C1000P50X0402

FOR P4M890

R187 X_1KR0402

C152

C1U16Y

C140

C1U16Y

VCC_DDR

1.5V

C532 C4.7U10Y0805 C535 C4.7U10Y0805

C534 C4.7U10Y0805 C525 C4.7U10Y0805 C531 C4.7U10Y0805 C536 C4.7U10Y0805

C537 C2.2U6.3X5 C533 C2.2U6.3X5

C528 C2.2U6.3X5 C530 C2.2U6.3X5

under NB( solder side)

VCC5

U23 X_LT1087S_SOT89

VIN3VOUT

1

VCCA33HCK

2

ADJ

R423 X_164R1%0402

R424 X_100R1%0402

LVREF_NB => 0.625V

1 1

Micro Star Restricted Secret

Title

P4M890-3(GFX)

Document Number

MICRO-STAR INT'L CO.,LTD.

No. 69, Li-De St, Jung-He City, Taipei Hsien, Taiwan

4

3

2

http://www.msi.com.tw

MS-7255

Last Revision Date:

Friday, November 17, 2006

1

Sheet

of

10 32

Rev

2.1

MSI MS-7255 Schematics rev2.1

Specifications and Main Features

Frequently Asked Questions

User Manual