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8 7 6 5 4 3 2 1
D
MS-6716 Ver : 100 Cover Sheet 1 D
VIA KT400 + VT8235 Chipset
Block Diagram 2
CLOCK GEN 3
CPU: AMD CPU Sockets 462 4-5
AMD Athlon XP / Athlon / Duron Socket 462
Via VT8377 KT400 North Bridge 6-8
DDR SLOT 9
System Chipset:
DDR TERMINATOR 10
VIA VT8377 (KT400 ) + VT8235
AGP SLOT 11
C C
On Board Chipset: Via VT8235 South Bridge 12 - 14
LPC Super I/O -- W83697HF PCI SLOTS 15 - 16
Lan : VIA PHY VT6103
LAN 17
1394 : VIA 1394
IDE CONNECTOR 18
Expansion Slots:
USB CONNECTOR 19
AGP 3.0 Slot * 1 AC'97 CODEC 20
DDR Slot * 2
PCI 2.2 Slot * 3 AUDIO CONNECTOR 21
B
ROM & Battery 22 B
LPC I/O(W83697HF) 23
HARDWARE MONITOR, Fan, KB/MS CONNECTOR 24
PARALLEL PORT, SERIAL I/F, WOR 25
VRM 9.X 26
ACPI Controller, Regulators 27
ATX Power Con, Thermal Trip, Front Panel, Decoupling Cap 28
VIA 1394 29
A
Other 30
A
MICRO-STAR INT'L CO.,LTD.
Title
COVER PAGE
Size Document Number Rev
MS-6716 0B
Date: Friday, September 13, 2002 Sheet 1 of 31
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System Block Diagram + 12V
- 12V
Host CLK
PCI CLK + 5V
D
SOCKET-462 Clock Gen. ATX Conn.
D
AGP CLK - 5V
3.3V
Host Bus
VCC5SBY
Mem. CLK
SSTL-2 Termination
DDR SDRAM (Only for DDR)
VCC5SBY
AGP Connector VCC3SBY VCCM
AGP CONNECTOR Via VT8377 DIMM 1 DIMM 2 Rtt
VCC3
VCC25SBY
V-Link
Analog In
DDR_VTT
C AC'97 C
Audio Codec
PCI SLOT 3 PCI SLOT 2 PCI SLOT 1
VCC2_5
Analog Out
Via VT8235
CNR
IDE 1 IDE 2
KEYBOARD PS/2 VDDQ
/MOUSE
USB 0 USB 3
Lan Phy VCCA_PLL
USB 1 USB 4
LPC Bus
FAN FAN FAN CONTROL VOLTAGE MONITOR
1 2 VCC5SBY
5VDUAL KBUVCC
TEMPERATURE MONITOR VCC5
LPC Super I/O
Legacy FAN CONTROL
ROM
VCORE
B B
GPIOs IR/CIR GAME/MIDI SERIAL PARALLEL FLOPPY
A A
MICRO-STAR INT'L CO.,LTD.
Title
System Block Diagram
Size Document Number Rev
MS-6716 0B
Date: Friday, September 13, 2002 Sheet 2 of 31
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By-Pass Capacitors
Place near to the Clock Outputs
Main Clock Generator Damping Resistors
Place near to the
Clock Outputs
U12
VCC3 CY28341OCVerD-SSOP56 RN70 22 AGPCLK0 C238 10p_0603
D CP9 7 8 CPUCLK1 D
CPUCLK1 6
5 48 5 6 CPUCLK-1 AGPCLK1 C252 10p_0603
VDDAGP CPUCLK_PPT CPUCLK-1 6
16 49 3 4 CPUCLK0
VDDPCI CPUCLK_PPC CPUCLK-0 CPUCLK0 4
X_COPPER 22 1 2 VLCLK C239 10p_0603
VDD48M CPUCLK-0 4
51 VDDCPU CPUCLKST 53
X_80_0805 CB64 CB78 CB77 CB76 CB66 55 52 CN25 10p
CE2 L38 VDDREF CPUCLKSC PCICLK3 1 2
22 1 2 RN71 PCICLK4 3 4
DDRCLK0 9 PCICLK2
X_10u 0.1u 0.1u 0.1u 0.1u 0.1u 2 44 3 4 5 6
GND2 DDRT0 DDRCLK-0 9
9 43 5 6 PCICLK1 7 8
GND9 DDRC0 DDRCLK1 9
13 GND13 DDRT1 42 7 8 DDRCLK-1 9
19 GND48M DDRC1 41
33 38 22 1 2 RN72 PCLKSB C242 X_10p_0603
GND33 DDRT2 DDRCLK2 9
39 GND39 DDRC2 37 3 4 DDRCLK-2 9
47 36 5 6 SIOPCLK C241 X_10p_0603
GNDI DDRT3 DDRCLK3 9
54 GND54 DDRC3 35 7 8 DDRCLK-3 9
VCC3 32
L39 DDRT4 22
DDRC4 31 1 2 RN73 DDRCLK4 9
23 30 3 4 APICCPU C201 X_10p_0603
AVDD DDRT5 DDRCLK-4 9
X_80_0805 29 5 6
DDRC5 DDRCLK5 9
CP10 24 7 8 APICSB C237 X_10p_0603
CB73 CB72 AGND DDRCLK-5 9
BUFFER_IN 45
X_COPPER 0.1u 0.1u 50 46
VDDI FBOUT DCLKO 7
R199 22 SBCLK14 C236 X_10p_0603
DCLKI 7
VCC2_5 VCC2_5
6 MODE R264 22
VADDR25 AGP0/MODE SELCPU AGPCLK0 8
34 7 R289 22 USBCLK C243 X_10p_0603
VDD3.3/2.5-34 AGP1/SEL_CPU VLCLK 12
CB68 X_80_0805 CB65 CB67 8 R266 22
AGP2/PCI_STOP# AGPCLK1 11
L37 40 SIO48M C220 X_10p_0603
VDD3.3/2.5-40 RN77 22
CP8
C 0.1u 0.1u 0.1u 10 FS1 1 2 C
PCICLK_F/FS1 SELDDR# PCICLK3 16
PCICLK0/SEL_SD_DDR# 11 3 4 PCICLK4 16
X_COPPER 12 MULTSEL0 5 6
PCICLK1/MULTSEL0 PCICLK2 16
PCICLK2 14 7 8 PCICLK1 15
PCICLK3 15
27 17 R267 22
9,13,27 SMBCLK SCLK PCICLK4 SIOPCLK 23
28 18 R268 22
9,13,27 SMBDAT SDATA PCICLK5/CPU_STP# PCLKSB 12
R291 22 1394PCLK 29
R248 X_0 26 20 FS3 R270 22
27,28 FP_RST# RESET/PD# 48M/FS3 FS2 USBCLK 14
21 R292 22
24_48M/FS2 SIO48M 23
25 1 FS0 R262 33 By-Pass Capacitors
IREF REF0/FS0 SBCLK14 13
R263 22 APICSB 12
R244 56 R286 33 Place near to the Clock Buffer
VTT_PWRGD#/REF1 AC97CLK 20
XOUT
475
XIN
REF1 R210 62 APICCPU 4
CN23 X_10p
R211 261 DDRCLK0 1 2
DDRCLK-0
3
4
3 4
DDRCLK1 5 6
Y2 DDRCLK-1 7 8
14M-32pf-HC49S-D CN24 X_10p
FS0 FS1 FS2 FS3 DDRCLK2 1 2
C231 C209 DDRCLK-2
22p 22p 3 4
0 0 0 DDRCLK3
1 100MHZ DDRCLK-3
5
7
6
8
B B
1 1 0 0 133MHZ CN21 X_10p
DDRCLK4 1 2
DDRCLK-4 3 4
0 DDRCLK5
1 1 1 166MHZ DDRCLK-5
5
7
6
8
CN22 X_10p
CPUCLK0 1 2
CPUCLK-0 3 4
CPUCLK-1 5 6
CPUCLK1 7 8
VCC3
VCC3
MULTSEL0 R252 X_4.7K
VCC3 CB69
SELCPU R265 4.7K
X_0.1u VCC2_5 FS0 4.7K R273
5
U11 SELDDR# R272 4.7K
REF1 1 FS2 4.7K R275
5
4 APICSB U9
2 REF1 1 R293 10K FS1 X_2.7K R274
R221 X_22 APICCPU 5,13 FS1_S
4
A
X_NC7SZ08-74NC7SZ08S 2 A
VCC2_5 R302 10K FS3
3
X_NC7SZ08-74NC7SZ08S 5,13 FS3_S
R178 X_4.7K
3
DCLKO R192 X_4.7K
MICRO-STAR INT'L CO.,LTD.
Title
CLOCK GEN
Size Document Number Rev
MS-6716 0B
Date: Tuesday, September 17, 2002 Sheet 3 of 31
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VCORE VCC3 VCORE
R21 R9 TRST# 510 R22
CPU1A 680 1K PLLTEST# 510 R31
SDATA#0 AA35 AE1
6 SDATA#[0:63] SDATA#1 SDATA0 A20M FERR A20M# 12
W37 SDATA1 FERR AG1 FERR# 12
SDATA#2 RN14
W35 SDATA2 INIT AJ3 CPUINIT# 12
SDATA#3 Y35 AL1 C DBREQ# 1 2
SDATA#4 SDATA3 INTR INTR 12 FERR Q2 TCK
U35 SDATA4 IGNNE AJ1 IGNNE# 12 B 3 4
D SDATA#5 U33 AN3 NPN-MBT3904LT1-S-SOT23
E TMS 5 6 D
SDATA#6 SDATA5 NMI NMI 8 TDI
S37 SDATA6 RESET AG3 CPURST# 27 7 8
SDATA#7 S33 AN5
SDATA#8 SDATA7 SMI STPCLK# SMI# 12 510
AA33 SDATA8 STPCLK AC1 STPCLK# 12
SDATA#9 AE37
SDATA#10 SDATA9
AC33 SDATA10 PWROK AE3 PWRGD_CPU 27
SDATA#11 RN10
AC37 SDATA11
SDATA#12 Y37 SSHIFTEN 1 2
SDATA#13 SDATA12 SINTVAL
AA37 SDATA13 PICCLK N1 APICCPU 3 3 4
SDATA#14 AC35 N3 VCORE SCANCLK2 5 6
SDATA#15 SDATA14 PICD0/BYPASSCLK APICD0 12
S35 N5 SCANCLK1 7 8
SDATA#16 SDATA15 PICD1/BYPASSCLK APICD1 12
Q37 SDATA16
SDATA#17 Q35 AG13 COREFB- 270
SDATA#18 SDATA17 COREFB- COREFB+ R69
N37 SDATA18 COREFB+ AG11
SDATA#19 R67 C50
SDATA#20
J33 SDATA19 CPUCLK_R