MSI MS-95L8 Schematic A10
5
D D
4
3
2
1
Component
1.AST2000
2.SDRAM:32Mx16
3.MAC PHY:BCM5421
4.XTAL:25MHz
5.Flash:S29GL064M90TFIR4
6.EEPROM:AT24C128
7.OSC:48MHz
C C
8.LDO 3.3V to 2.5V
9.LDO 3.3V to 1.8V
10.DVI RCV:TFP401
EEPROM
P5
SDRAM
P3
Flash
P5
Power and Current
1.AST2000
OSC
B B
P5
P7
DVI
AST2000
XTAL
MAC
P4
PHY
RCV
P3/P4/P5/P6
P6
LDO
3.3V->2.5V
LDO
3.3V->1.8V
Core and DAC,PLL:1.8V/420mA
DDR:2.5V/60mA
I/O and USB:3.3V/42mA
2.SDRAM:2.5V/50mA
3.MAC PHY:3.3V/±10mA
4.EEPROM:3.3V/5mA
5.OSC:3.3V/18mA
6.Flash:3.3V/50mA
7.LDO:3.3V/800mA
OPMA Connector
A A
5
4
P2
3
8.DVI RCV:3.3V/370mA
Micro-Star Int'l Co., Ltd.
Micro-Star Int'l Co., Ltd.
Micro-Star Int'l Co., Ltd.
Title
Title
Title
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
Date: Sheet
Date: Sheet
Date: Sheet
Block Diagram
Block Diagram
Block Diagram
A
A
A
MS-95L8
MS-95L8
MS-95L8
2
17Wednesday, July 05, 2006
17Wednesday, July 05, 2006
17Wednesday, July 05, 2006
of
of
of
1
0A
0A
0A
5
D D
LPC_FRAME_N3
LPC_AD03
LPC_AD13
LPC_AD23
LPC_AD33
LPC_RST_N3
LPC_CLK3
SMB_SWITCH_CLK5
SMB_SWITCH_DATA5
SMB_IPMB_CLK5
SMB_IPMB_DATA5
SMB_NIC_CLK5
SMB_NIC_DATA5
C C
B B
A A
SMB_NIC_ALTJ5
SMB_LEGACY_CLK5
SMB_LEGACY_DATA5
SMB_HOST_CLK5
SMB_HOST_DATA5
SDTR04
SDCD04
SDSR04
SRI04
SRXD04
STXD04
SCTS04
SRTS04
LOCAL_LOCK_#5
OPMA_SPKR5
OPMA_CLR_CMOSJ5
VCC_3V3
4
CON1
CON1
1
GND
3
RESERVED
5
GND
7
RESEVED
9
GND
11
LDRQ_L
13
LFRAME_L
15
LAD0
17
LCLKRUN_L
19
LAD1
21
LAD2
23
LAD3
25
SERIRQ
27
LRST_L
29
LCLK
31
GND
33
RESERVED
35
RESERVED
37
GND
39
MCARD_I2C_PRIVATE0_SCL
41
MCARD_I2C_PRIVATE0_SDA
43
GND
45
MCARD_I2C_IPMB_SCL
47
MCARD_I2C_IPMB_SDA
49
GND
51
MCARD_I2C_SIDEBAND_NIC_SCL
53
MCARD_I2C_SIDEBAND_NIC_SDA
55
MCARD_I2C_SIDEBAND_NIC_ALERT
57
GND
59
MCARD_I2C_PRIVATE1_SCL
61
MCARD_I2C_PRIVATE1_SDA
63
GND
65
MCARD_I2C_SHARED_SCL
67
MCARD_I2C_SHARED_SDA
69
GND
71
DEBUG_IF0
73
DEBUG_IF1
75
DEBUG_IF2
77
DEBUG_IF3
79
GND
81
MCARD_DTR0_L
83
MCARD_DCD0_L
85
MCARD_DSR0_L
87
MCARD_RI0_L
89
MCARD_RXD0
91
MCARD_TXD0
93
MCARD_CTS0_L
95
MCARD_RTS0_L
97
GND
99
DEBUG_PWR0
101
DEBUG_PWR1
103
GND
105
MCARD_ID0
107
MCARD_ID1
109
MCARD_ID2
111
GND
113
DEBUG_IF4
115
DEBUG_IF5
117
DEBUG_IF6
119
DEBUG_IF7
121
GND
123
MCARD_LOCAL_LOCK_L
125
MCARD_SYS_SPKR_DATA
127
MCARD_CLR_CMOS_L
129
GND
131
CLK_32768
133
GND
135
MCARD_DETECT_L
137
GND
139
ACOMP_ADC0
141
ACOMP_ADC1
143
ACOMP_ADC2
145
ACOMP_ADC3
147
ACOMP_ADC4
149
ACOMP_ADC5
151
GND
153
MCARD_SCI_INT_L
155
RESERVED
157
GND
159
RESERVED
161
RESERVED
163
RESERVED
165
RESERVED
167
GND
169
GND
171
VDD_3.3_DUAL
173
VDD_3.3_DUAL
175
VDD_3.3_DUAL
177
VDD_3.3_DUAL
179
GND
181
GND
183
VDD_5_DUAL
185
VDD_5_DUAL
187
RESERVED
189
RESERVED
191
RESERVED
193
RESERVED
195
RESERVED
197
GND
199
RESERVED
X_OPMA SO-DIMM_FINGER
X_OPMA SO-DIMM_FINGER
SMBUS
SMBUS
DEBUG
DEBUG
MCARD
MCARD
Serial
Serial
Port
Port
DEBUG
DEBUG
Interface
Interface
Type ID
Type ID
DEBUG
DEBUG
Control
Control
Misc
Misc
Card Detect
Card Detect
Single Wire
Single Wire
Analog
Analog
Sensors
Sensors
Control
Control
Power
Power
LPC
LPC
Video
Video
Capture
Capture
DVI-I
DVI-I
Multi-Bank
Multi-Bank
Fan Control
Fan Control
Multiplexed
Multiplexed
Fan
Fan
Tachometers
Tachometers
Multiplexed
Multiplexed
Fan Tachometers
Fan Tachometers
Control
Control
TX/RX for SOL Support
TX/RX for SOL Support
LED Control
LED Control
USB
USB
Bottons
Bottons
TX/RX SOL Ctrl
TX/RX SOL Ctrl
ICMB
ICMB
Status
Status
Mgmt LAN
Mgmt LAN
3
DVI_TX_CLK_H
DVI_TX_CLK_L
DVI_DDC_DATA
DVI_DDC_CLK
ANALOG_DDC_DATA
ANALOG_DDC_CLK
ANALOG_RED
ANALOG_GREEN
ANALOG_BLUE
ANALOG_HSYNC
ANALOG_VSYNC
MCARD_FAN_PWM_CPU
MCARD_FAN_PWM_SYS
MCARD_FAN_PWM_PS
MCARD_FAN_TACH0
MCARD_FAN_TACH1
MCARD_FAN_TACH2
MCARD_FAN_TACH3
MCARD_FAN_SEL0_L
MCARD_FAN_SEL1_L
MCARD_FAN_SEL2_L
MCARD_FAN_SEL3_L
MCARD_RXD_SOL
MCARD_TXD_SOL
FAULT_LED_L
CHASSIS_ID_L
MCARD_PWRBTN_L
MCARD_RSTBTN_L
MCARD_NMIBTN_L
MCARD_AUX_SOL_CTRL_L
MCARD_RXD1
MCARD_TXD1
MCARD_TXD1_ENABLE
SYS_THERMTRIP_L
SYS_INTRUDER_L
SYS_LINE_AC_L
SYS_PWRBTN_L
SYS_RSTBTN_L
SYS_NMIBTN_L
SYS_PCI_RST
SYS_ACPI_STATE0
SYS_ACPI_STATE1
SYS_ACPI_STATE2
SYS_IO_EXP_INT_L
MCARD_TX_H
MCARD_TX_L
MCARD_RX_H
MCARD_RX_L
LAN_BUSY_LED_L
LAN_LINK_LED_L
RESERVED
RESERVED
DVI_TX0_H
DVI_TX0_L
DVI_TX1_H
DVI_TX1_L
DVI_TX2_H
DVI_TX2_L
RESERVED
RESERVED
RESERVED
USB_P
USB_N
RESERVED
ALL_PWROK
SYS_SMI_L
RESERVED
RESERVED
RESERVED
RESERVED
POE_GND
POE_PWR
POE_PWR
POE_GND
RESERVED
RESERVED
2
2
4
GND
6
8
GND
10
12
14
GND
16
18
20
GND
22
24
26
GND
28
30
32
GND
34
36
38
40
42
44
GND
46
48
50
52
54
56
GND
58
60
62
GND
64
66
68
70
GND
72
74
76
78
80
GND
82
84
86
88
90
GND
92
94
96
GND
98
100
102
GND
104
106
108
GND
110
112
114
116
GND
118
120
122
GND
124
126
128
130
GND
132
134
136
138
140
142
144
146
148
150
152
154
156
158
GND
160
162
164
166
168
GND
170
172
174
GND
176
178
180
182
184
186
188
190
192
GND
194
196
GND
198
200
GND
DVI_TX0_H 7
DVI_TX0_L 7
DVI_TX1_H 7
DVI_TX1_L 7
DVI_TX2_H 7
DVI_TX2_L 7
DVI_TXCLK_H 7
DVI_TXCLK_L 7
SYS_FAULT_C 5
USB0P 5
USB0N 5
PW_BT_OPMAJ 5
RST_SSI_OPMAJ 5
DUMP_SSI_OPMAJ 5
SRXD1 4
STXD1 4
SB_PWROK2 5
THERMTRIP_N 5
PWR_BT_SSIJ 5
RST_SSIJ 5
DUMP_SSIJ 5
PowerGood 3
ETH_TX_H 4
ETH_TX_L 4
ETH_RX_H 4
ETH_RX_L 4
ETH_LED_BUSY_N 4
ETH_LED_LINK_N 4
VCC_3V3
R11K R11K
1
Micro-Star Int'l Co., Ltd.
Micro-Star Int'l Co., Ltd.
Micro-Star Int'l Co., Ltd.
Title
Title
Title
OPMA Connector
OPMA Connector
OPMA Connector
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
C
C
C
MS-95L8
MS-95L8
MS-95L8
Date: Sheet
Date: Sheet
5
4
3
2
Date: Sheet
1
27Tuesday, July 04, 2006
27Tuesday, July 04, 2006
27Tuesday, July 04, 2006
0A
0A
0A
of
of
of
5
4
3
2
1
D D
R4
4.7KR44.7K
C C
VCC_3V3
R36
R36
R35
R35
R38
R38
R37
R37
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
4.7K
LPC_AD02
LPC_AD12
LPC_AD22
LPC_AD32
LPC_RST_N2
LPC_CLK2
PowerGood2
LPC_FRAME_N2
B B
4.7K
U1A
U1A
A24
AD0
C23
AD1
B24
AD2
A25
AD3
E23
AD4
D24
AD5
C25
AD6
B26
AD7
D25
AD8
E24
AD9
D26
AD10
E25
AD11
F24
AD12
G23
AD13
E26
AD14
F25
AD15
H25
AD16
H26
AD17
K23
AD18
J25
AD19
J26
AD20
K24
AD21
K25
AD22
K26
AD23
L26
AD24
M23
AD25
M24
AD26
M25
AD27
M26
AD28
N23
AD29
N24
AD30
N25
AD31
C26
CBE0
H23
CBE1
J24
CBE2
L25
CBE3
H24
FRAMEN
G26
TRDYN
J23
IRDYN
F26
STOPN
G25
DEVSELN
L24
IDSEL
R25
INTAN
G24
PAR
P26
PCICLK
R24
BRSTN
P24
REQ1
R23
GNT1
N26
REQ2
P25
GNT2
D18
LAD0
C18
LAD1
B18
LAD2
A18
LAD3
A17
LRESETN
C17
LCLK
B17
LPCPDN
D17
LFRAMEN
AST1000
AST1000
DQ10
DQ11
DQ12
DQ13
DQ14
DQ15
DQ16
DQ17
DQ18
DQ19
DQ20
DQ21
DQ22
DQ23
DQ24
DQ25
DQ26
DQ27
DQ28
DQ29
DQ30
DQ31
MA10
MA11
MA12
CSN0
CSN1
RASN
CASN
DQS0
DQS1
DQS2
DQS3
VREFSSTL
VSSRSSTL
WEN
Near AST2000
33 R533 R5
AD14
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
DQ8
DQ9
DM0
DM1
DM2
DM3
MA0
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
MA9
BA0
BA1
CKE
CK
CKN
AC14
AF13
AE13
AD13
AC13
AF12
AD12
AC16
AD16
AF16
AF15
AE15
AD15
AF14
AE14
AE26
AD25
AC24
AB23
AD24
AE25
AF26
AF25
AA25
AC26
AB25
AA24
AD26
AC25
AB24
AA23
AC12
AF17
AD23
Y24
AC19
AF20
AE20
AD20
AC20
AD21
AE22
AF23
AC21
AD22
AE23
AF24
AC22
AD18
AD19
AE17
AD17
AC17
AF18
AE18
AE21
AF21
AF22
AE12
AE16
AE24
AB26
AF19
AE19
33 R233 R2
33 R333 R3
33 R633 R6
33 R733 R7
33 R833 R8
33 R933 R9
33 R1633 R16
33 R1033 R10
33 R1133 R11
33 R1233 R12
33 R1733 R17
33 R1333 R13
33 R1833 R18
33 R1433 R14
33 R1533 R15
33 R2133 R21
33 R2233 R22
33 R2333 R23
33 R2433 R24
33 R2533 R25
33 R2633 R26
33 R2733 R27
33 R2833 R28
33 R2933 R29
33 R3033 R30
33 R3133 R31
33 R3233 R32
33 R3333 R33
33 R3433 R34
33 R3933 R39
33 R4033 R40
33 R4133 R41
33 R4233 R42
33 R4333 R43
33 R4433 R44
33 R4533 R45
56
33 R4733 R47
33 R4833 R48
33 R4933 R49
33 R5033 R50
MemVREF
MemDQ_0
MemDQ_1
MemDQ_2
MemDQ_3
MemDQ_4
MemDQ_5
MemDQ_6
MemDQ_7
MemDQ_8
MemDQ_9
MemDQ_10
MemDQ_11
MemDQ_12
MemDQ_13
MemDQ_14
MemDQ_15
MemDM_0
MemDM_1
MemMA_0
MemMA_1
MemMA_2
MemMA_3
MemMA_4
MemMA_5
MemMA_6
MemMA_7
MemMA_8
MemMA_9
MemMA_10
MemMA_11
MemMA_12
MemBA_0
MemBA_1
MemCS_N
MemRAS_N
MemCAS_N
MemWE_N
MemCLKEN
R4656R46
MemCK
MemCK_N
MemDQS_0
MemDQS_1
MemDQ_0
MemDQ_1
MemDQ_2
MemDQ_3
MemDQ_4
MemDQ_5
MemDQ_6
MemDQ_7
MemDQS_0
MemDM_0
MemWE_N
MemCAS_N
MemRAS_N
MemCS_N
MemBA_0
MemBA_1
MemMA_10
MemMA_0
MemMA_1
MemMA_2
MemMA_3
VCC_2V5
VCC_2V5
U2
U2
1
VDD1
2
DQ0
3
VDDQ1
4
DQ1
5
DQ2
6
VSSQ1
7
DQ3
8
DQ4
9
VDDQ2
10
DQ5
11
DQ6
12
VSSQ2
13
DQ7
14
NC1
15
VDDQ3
16
LDQS
17
NC2
18
VDD2
19
DNU1
20
LDM
21
WE#
22
CAS#
23
RAS#
24
CS#
25
NC3
26
BA0
27
BA1
28
A10
29
A0
30
A1
31
A2
32
A3
33
VDD3
DDR SDRAM X16
DDR SDRAM X16
C2
C3
0.1u_25VC20.1u_25V
0.1u_25VC30.1u_25V
Near DRAM Power Pin
MemVREF
C4
0.1u_25VC40.1u_25V
VSS3
DQ15
VSSQ5
DQ14
DQ13
VDDQ5
DQ12
DQ11
VSSQ4
DQ10
VDDQ4
VSSQ3
UDQS
DNU2
VREF
VSS2
VSS1
C5
0.1u_25VC50.1u_25V
C8
0.01u_25VC80.01u_25V
C10
C10
0.01u_25V
0.01u_25V
DQ9
DQ8
NC4
UDM
CK#
CK
CKE
NC5
A12
A11
A9
A8
A7
A6
A5
A4
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
C6
0.1u_25VC60.1u_25V
VCC_2V5
C9
C9
1u_25V-0805
1u_25V-0805
C11
C11
1u_25V-0805
1u_25V-0805
C7
0.1u_25VC70.1u_25V
MemDQ_15
MemDQ_14
MemDQ_13
MemDQ_12
MemDQ_11
MemDQ_10
MemDQ_9
MemDQ_8
MemDQS_1
MemVREF
MemDM_1
MemCK_N
MemCK
MemCLKEN
MemMA_12
MemMA_11
MemMA_9
MemMA_8
MemMA_7
MemMA_6
MemMA_5
MemMA_4
R511KR51
1K
R521KR52
1K
AST2000 CKE will drive high
when power on, for meet the DDR
CKE specification, use this
circuit to pull CKE low about
1ms when power up.
CKE damping should be higher to
limit the current when been
pull low.
VCC_3V3
MemCLKEN
R19
R19
3.3K
R20
R20
20K
20K
C1
0.1u_25VC10.1u_25V
RC delay about
1ms, don't too
long.
For saving board space, we
suggest use only 1 X16
DRAM chip, and the KVMoIP
performance is almost the
same as 2 DRAM chips (X32
bus width).
3.3K
DS
G
B
Q2
Q2
2N7002
2N7002
SOT23SGD_T
SOT23SGD_T
Q1
MMBT3904Q1MMBT3904
E C
Layout Guide :
1. Damping resistors should place as close as possible to the AST2000.
MemVREF trace width must > 20 mil
2. DRAM Signal layout should minimize the vias in a trace.
3. All DQ/DM had better have the same via number, and all DQS had better have the same via number.
All DQ/DM/DQS must have equal trace length, trace length < 50 mm and length difference < 5 mm.
4. All Trace Impedance 50 ~ 60 Ohm, trace width 4 mils ~ 6 mils, less is better.
5. And for reducing the wire crossing, the following groups of wire connection can be exchangeable:
A A
(1) MemDQ_[ 7: 0]
(2) MemDQ_[15: 8]
5
Micro-Star Int'l Co., Ltd.
Micro-Star Int'l Co., Ltd.
Micro-Star Int'l Co., Ltd.
Title
Title
Title
LPC / DDR
LPC / DDR
LPC / DDR
Size Document Number Rev
Size Document Number Rev
Size Document Number Rev
C
C
C
MS-95L8
MS-95L8
MS-95L8
Date: Sheet
Date: Sheet
4
3
2
Date: Sheet
1
37Thursday, July 13, 2006
37Thursday, July 13, 2006
37Thursday, July 13, 2006
0A
0A
0A
of
of
of
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