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1
Title Page
MS-6337 Cover Sheet
Block Diagram
1
2
ATX
Intel PGA 370 Processor GPIO SPEC 3
Intel Solano2 Chipset 370PGA Socket 4,5
Winbond 83627HF-AW LPC I/O AGTL Termination 6
PROMISE PDC20265 PCI Ultra 100 Controller Clock Synthesizer 7
Genesys USB PC to PC Networking Controller GMCH 8,9,10
AGP / AIMM Display Cache 11
Videos Connectors 12
System Memory 13,14,15,16
ICH 17,18
FWH 19
CNR Riser 20
AC'97 Codec 21
Audio Amplifier 22
PCI Connectors 23,24,25
ATA100 Connector 26
A
USB Connectors 27 A
LPC I/O 28
Hardware monitor 29
Parallel Port 30
Serial Port 31
Game Port 32
Keyboard/Mouse Connectors 33
PCI Ultra 100 Controller 34,35
PLL and PCI Arbitor 36
PC to PC Controller 37
Smart Diagnostic LED 38
VRM 8.4 39
Vcore Setting 40
System Voltage Regulators 41
AGP Voltage Regulators 42
Front Panel 43,44
Pull-up Resistors 45
VRM Decoupling 46 Micro Star Restricted Secret
Title Rev
Cover Sheet
Chipset Decoupling 47 Document Number
MS-6337
30B
History 48,49 MICRO-STAR INT'L CO.,LTD. Last Revision Date:
Monday, December 04, 2000
No. 69, Li-De St, Jung-He City,
Taipei Hsien, Taiwan Sheet
http://www.msi.com.tw 1 of 50
1
1
Block Diagram
VRM 370-Pin Socket Processor Clock
ADDR
CTRL
DATA
Term
ADDR
CTRL
DATA
AGP Pro
Connector
815 4 DIMM
GMCH Modules
Digital
Video
Out
Link
Hub
IDE Primary UltraDMA 33/66/100
PCI CNTRL
PCI Conn 1
PCI Conn 2
PCI Conn 3
PCI Conn 4
PCI Conn 5
PCI Conn 6
IDE Secondary
ICH2 PCI ADDR/DATA
A A
USB Port 1
USB Port 2 USB
USB Port 3
PC to PC
LPC Bus
USB Port 4
Controller
AC'97 Link
Onboard PCI CNTRL
AC'97 Codec UltraDMA 33/66/100 IDE Thirdly
PCI ADDR/DATA PCI Ultra 100
Controller
IDE Fourthly
CNR
LPC SIO
FirmWare Hub
Keyboard Floopy Parallel Serial Game Conn
Mouse
Micro Star Restricted Secret
Title Rev
Block Diagram
Document Number 30B
MS-6337
MICRO-STAR INT'L CO.,LTD. Last Revision Date:
Monday, December 04, 2000
No. 69, Li-De St, Jung-He City,
Taipei Hsien, Taiwan Sheet
http://www.msi.com.tw 2 of 50
1
1
General Spec.
ICH2 FWH
GPIO Pin Type Function GPIO Pin Type Function
GPIO 0 I REQ#A (multifunction pin) GPI 0 I Pull down through 8.2K ohms (unused)
GPIO 1 I PREQ#5 (multifunction pin) GPI 1 I Pull down through 8.2K ohms (unused)
GPIO 2 I Pull up through 2.7K ohms (PIRQE#) GPI 2 I GPI2 = 0 GPI3 = 1 ; Flash from FDD
GPIO 3 I Pull up through 2.7K ohms (PIRQF#) GPI 3 I GPI2 = 1 GPI3 = 0 ; Boot Auto clear CMOS
GPIO 4 I Pull up through 2.7K ohms (PIRQG#) GPI 4 I Pull up through 1K ohms (unused)
GPIO 5 I Pull up through 2.7K ohms (PIRQH#)
LPC
GPIO 6 I Primary IDE ATA66/100 detection (ATADET0)
GPIO Pin Type Function
GPIO 7 I Secondary IDE ATA66/100 detection (ATADET1)
GPIO 24 I/O Pull Up to 5V through 22K ohms (DLED2)
GPIO 8 I Pull Up to 3.3VSBY through 10K ohms (LAN Wake Up)
GPIO 32 I/O Pull Up to 5V through 22K ohms (DLED1)
GPIO 9 I Not Implemented
GPIO 33 I/O Pull Up to 5V through 22K ohms (DLED4)
GPIO 10 I Not Implemented
GPIO 34 I/O Pull Up to 5V through 22K ohms (DLED3)
GPIO 11 I SMB_ALERT (multifuntion pin)
GPIO 12 I Pull Up to 3.3VSBY through 4.7K ohms (External SMI)
PCI Config. DIMM Config.
GPIO 13 I Pull Up to 3.3VSBY through 4.7K ohms (LPC PME)
DEVICE ICH INT Pin IDSEL CLOCK CLK GEN PIN OUT DEVICE ADDRESS CLOCK
GPIO 14~15 I Not Implemented
GPIO 16 O GNT#A (multifunction pin) PCI Slot 1 INTA# AD16 PCICLK1 ICS94201 DIMM 1 1010000B DCLK4
INTB# 13 (PCI2/SEL24_48#) DCLK5
GPIO 17 O PGNT#5 (multifuntion pin)
INTC# DCLK0
GPIO 18 O Pull down through 8.2K ohms (unused) INTD# DCLK1
GPIO 19 O accomplished with GPIO20 for DIMM voltage
PCI Slot 2 INTB# AD17 PCICLK2 ICS94201 DIMM 2 1010001B DCLK11
GPIO 20 O accomplished with GPIO19 for DIMM voltage INTC# 15 (PCI3) DCLK9
INTD# DCLK2
GPIO 21 O Pull Up to 3.3V through 4.7K ohms (Vcore Setting)
INTA# DCLK3
A
GPIO 22 OD Not Connected A
PCI Slot 3 INTC# AD18 PCICLK3 ICS94201 DIMM 3 1010010B DCLK8
GPIO 23 O Pull Up to 3.3V through 4.7K ohms (BIOS protect)
INTD# 16 (PCI4) DCLK10
GPIO 24 I/O Pull Up to 3.3VSBY through 4.7K ohms (STR Control) INTA# DCLK7
INTB# DCLK6
GPIO 25 I/O Pull Up to 3.3VSBY through 4.7K ohms (KBVCC Control)
GPIO 26 I/O Not Implemented PCI Slot 4 INTD# AD19 PCICLK4 PCI PLL DIMM 4 1010011B DCLK10
INTA# 22 (PCI1) DCLK8
GPIO 27 I/O Pull Up to 3.3V through 4.7K ohms (Audio Control)
INTB# DCLK6
GPIO 28 I/O CNR Detected INTC# DCLK7
GPIO 29~31 O Not Implemented
PCI Slot 5 INTA# AD20 PCICLK5 ICS94201
INTB# 17 (PCI5)
VCC3STR GPO19 GPO20 BIOS Protect Config. GPIO23 VCORE Setting GPIO21 INTC#
INTD#
3.3V 1 1 BIOS Un_Protected 1 CPU Default 1
3.4V 0 1 BIOS Protected 0 Maanuel Setting 0 PCI Slot 6 INTB# AD21 PCICLK6 PCI PLL
3.5V 1 0 INTC# 20 (PCI6)
3.6V 0 0 INTD#
STR Control Config. GPIO24
INTA#
Power Off X
Power On / Disable 1 Ultra 100 INTB# AD25* ATAPCLK PCI PLL
Before Enter S3 0 19 (PCI3)
KBVCC Config. GPIO25 PCI PLL PCICLKI ICS94201
19 (PCI6)
KB Power On Enable 1
KB Power On Disable 0
* ICH2 reserved PCI address line AD22 for the PCI-to-ISA Bridge's
IDSEL input.
Micro Star Restricted Secret
Title Rev
GPIO SPEC
Document Number 30B
MS-6337
MICRO-STAR INT'L CO.,LTD. Last Revision Date:
Monday, December 04, 2000
No. 69, Li-De St, Jung-He City,
Taipei Hsien, Taiwan Sheet
http://www.msi.com.tw 3 of 50
1
8 7 6 5 4 3 2 1
370PGA Socket Part 1
VCCP
D D
HA#[31..3]
HA#[31..3] 6,8
AM12
AM16
AM20
AM24
AM28
AM32
AH32
AK34
AJ13
AJ17
AJ21
AJ25
AJ29
AM4
AM8
AK2
AB2
AE5
AA5
AF2
D20
D24
D28
R32
B26
B10
E13
B14
E17
B18
B30
V32
AJ5
AJ9
F22
F26
F30
Z32
W5
C3
N5
D6
P2
K2
E5
S5
B6
E9
T2
F4
F2
U4A
J5
HD#[63..0]
6,8 HD#[63..0]
VCC1
VCC2
VCC3
VCC4
VCC5
VCC6
VCC7
VCC8
VCC9
VCC10
VCC11
VCC12
VCC13
VCC14
VCC15
VCC16
VCC17
VCC18
VCC19
VCC20
VCC21
VCC22
VCC23
VCC24
VCC25
VCC26
VCC27
VCC28
VCC29
VCC30
VCC31
VCC32
VCC33
VCC34
VCC35
VCC36
VCC37
VCC38
VCC39
VCC40
VCC41
VCC42
VCC43
VCC44
VCC45
VCC46
VCC47
VCC48
VCC49
VCC50
VCC51
VCC52
AK8 HA#3
HD#0 HA#3 HA#4
W1 HD#0 HA#4 AH12
HD#1 T4 AH8 HA#5
HD#2 HD#1 HA#5 HA#6
N1 HD#2 HA#6 AN9
HD#3 M6 AL15 HA#7
HD#4 HD#3 HA#7 HA#8
U1 HD#4 HA#8 AH10
HD#5 S3 AL9 HA#9
HD#6 HD#5 HA#9 HA#10
T6 HD#6 HA#10 AH6
HD#7 J1 AK10 HA#11
HD#8 HD#7 HA#11 HA#12
S1 HD#8 HA#12 AN5
HD#9 P6 AL7 HA#13
HD#10 HD#9 HA#13 HA#14
Q3 HD#10 HA#14 AK14
HD#11 M4 AL5 HA#15
HD#12 HD#11 HA#15 HA#16
Q1 HD#12 HA#16 AN7
HD#13 L1 AE1 HA#17
HD#14 HD#13 HA#17 HA#18
N3 HD#14 HA#18 Z6
HD#15 U3 AG3 HA#19
HD#16 HD#15 HA#19 HA#20
H4 HD#16 HA#20 AC3
HD#17 R4 AJ1 HA#21
HD#18 HD#17 HA#21 HA#22
C P4 HD#18 HA#22 AE3 C
HD#19 H6 AB6 HA#23 VIDA[4..0]
HD#19 HA#23 VIDA[4..0] 5,40
HD#20 L3 AB4 HA#24
HD#21 HD#20 HA#24 HA#25
G1 HD#21 HA#25 AF6
HD#22 F8 Y3 HA#26
HD#23 HD#22 HA#26 HA#27 VCC
G3 HD#23 HA#27 AA1
HD#24 K6 AK6 HA#28
HD#25 HD#24 HA#28 HA#29
E3 Z4 RN4
HD#26 HD#25 HA#29 HA#30 VIDA2
E1 HD#26 HA#30 AA3 1 2
370-Pin Socket
HD#27 F12 AD4 HA#31 VIDA3 3 4
HD#28 HD#27 HA#31 VIDA1
A5 HD#28 HA#32/RESVD X6 5 6
HD#29 A3 AC1 VIDA0 7 8
HD#30 HD#29 HA#33/RESVD
J3 HD#30 HA#34/RESVD W3
HD#31 C5 AF4 8P4R-8.2K
HD#31 HA#35/RESVD
Part 1
HD#32 F6
HD#33 HD#32 VIDA0
C1 HD#33 VID0 AL35
HD#34 C7 AM36 VIDA1
HD#35 HD#34 VID1 VIDA2
B2 HD#35 VID2 AL37
HD#36 C9 AJ37 VIDA3
HD#37 HD#36 VID3 RS#0
A9 HD#37 RS#0 AH26
HD#38 D8 AH22 RS#1
HD#39 HD#38 RS#1 RS#2
D10 HD#39 RS#2 AK28
HD#40 C15 AK18 HREQ#0 RS#[2..0]
HD#40 REQ#0 RS#[2..0] 6,8
HD#41 D14 AH16 HREQ#1
HD#42 HD#41 REQ#1 HREQ#2
D12 HD#42 REQ#2 AH18
HD#43 A7 AL19 HREQ#3
HD#44 HD#43 REQ#3 HREQ#4
A11 HD#44 REQ#4 AL17
B HD#45 C11 B
HD#46 HD#45
A21 HD#46
HD#47 A15 AL11 HREQ#[4..0]
HD#47 AP0#RESVD HREQ#[4..0] 6,8
HD#48 A17 AN13
HD#49 HD#48 AP1#RESVD
C13 HD#49 RP#/RESVD AN23
HD#50 C25 AC37
HD#51 HD#50 RSP#/RESVD
A13 HD#51 DEP0#/RESVD C33
HD#52 D16 C31
HD#53 HD#52 DEP1#/RESVD
A23 HD#53 DEP2#/RESVD A33
HD#54 C21 A31
HD#55 HD#54 DEP3#/RESVD
C19 HD#55 DEP4#/RESVD E31
HD#56 C27 C29
HD#57 HD#56 DEP5#/RESVD
A19 HD#57 DEP6#/RESVD E29
HD#58 C23 A29
HD#59 HD#58 DEP7#/RESVD
C17 HD#59 BINIT#/RESVD B36
HD#60 A25 AK24
HD#61 HD#60 AERR#/RESVD
A27 HD#61 BERR#/RESVD V4
HD#62 E25
HD#63 HD#62
F16
GND10
GND11
GND12
GND13
GND14
GND15
GND16
GND17
GND18
GND19
GND20
GND21
GND22
GND23
GND24
GND25
GND26
GND27
GND28
GND29
GND30
GND31
GND32
GND33
GND34
GND35
GND36
GND37
GND38
GND39
GND40
GND41
GND42
GND43
GND44
GND45
GND46
GND47
GND48
GND49
GND50
HD#63
GND1
GND2
GND3
GND4
GND5
GND6
GND7
GND8
GND9
AM34
AM10
AM14
AM18
AM22
AM26
AM30
AJ11
AJ15
AJ19
AJ23
AJ27
AM2
AM6
AG5
AH2
AD2
AC5
AK4
D18
D22
D26
D30
AL3
E11
B12
E15
B16
E19
B20
B24
B28
AJ7
F20
F24
F28
YSKT370P-I
M2
Q5
G5
H2
D2
U5
D4
V2
Y5
B4
E7
B8
Z2
L5
A A
Micro Star Restricted Secret
Title Rev
370-pin Socket : Part 1
Document Number 30B
MS-6337
MICRO-STAR INT'L Last Revision Date:
CO.,LTD. Friday, March 30, 2001
No. 69, Li-De St, Jung-He City,
Taipei Hsien, Taiwan Sheet
http://www.msi.com.tw 4 of 50
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
370PGA Socket Part 2 SW1 CPU FSB
VCMOS VCC3SBY
1-2,4-5 AUTO
5-6 66.6 -> 100 , 133 -> 100
VCMOS
NULL 100 -> 133 R357
2-3,5-6 133 -> 66.6 , 100 -> 66.6 SEL1#
RN3
X_1K
D 2 1 TDO C25 Place 0603 package near D
4 3 TDI 104P VCMOS processor pin. R358
6 5 TCK SEL0#
8 7 TMS VTT VCC2_5 VCCP
GTLREF X_1K
8P4R-330
R32
SW1(1-2) BSEL1#
R37
PREQ# YJUMPER-MG 1K
AD36
AD32
AH24
AH36
AB36
AK12
AK22
AA37
AB34
AF34
U4B
AD6
M32
D32
D36
H32
H36
R36
E33
B22
B34
K32
K34
P34
V36
X34
Y35