User Guide

8081
8081
N/B Maintenance
N/B Maintenance
111
8.5 Memory Test Error
Extend DDRAM is failure or system hangs up.
+2.5V_DDR
+DDR_VREF
+2.5V_DDR
+DDR_VREF
+DDR_VREF
R66
75
+2.5V_DDR
R65
75
C116
0.1µ
C135
0.01µ
C115
0.1µ
C600
0.1µ
C113
0.1µ
C114
0.01µ
U502
Memory
Controller
Hub
Montara-GM
CKE [0:3], CS# [0:3], SMA [1,2,4,5], SMAB [1,2,4,5]
RP2~RP14
10*8
U512
Clock
Generator
ICS950810
66M_MCH
R629
33
SMBDATA
SMBCLK
29
30
CLK_DDR [3:4], CLK_DDR [3:4]#
CLK_DDR [0:2], CLK_DDR [0:2]#
CKE [0,1], CS# [0,1], SMA[1,2,4,5]
NB_MA [0,3,6:12]
NB_MD [0:71]
NB_DM [0:8], NB_WE#
NB_RAS#, NB_CAS#
NB_DQS [0:8], NB_BA [0,1]
R172
10K
P4
P6
J503
P7
DDR SODIMM
CLK_DDR [0:4], CLK_DDR [0:4]#
R607
33
HCLK_MCH#
HCLK_MCH
R606
33
21
48
49
U1~U4
U507~U510
On Board DDR
P8
CKE [2,3], CS#[2,3], SMAB [1,2,4,5]
RP505~RP517
RP18~RP21
56*8
+1.25V_DDR
MA [0,3,6:12]
MD [0:71]
DM [0:8], WE#
RAS#, CAS#
DQS [0:8], BA [0,1]
Q19
2N7002
G
S
D
U9
I/O Controller
ICH4-M
Q20
2N7002
G
S
D
SMB_DATA
SMB_CLK
R159
10K
P10
+3V
R157
2.2K
R173
2.2K
VDD3
MA [0,3,6:12]
MD [0:63]
DM [0:7], WE#
RAS#, CAS#
DQS [0:7], BA [0,1]
R619
75
+2.5V_DDR
R618
75
C132
0.1µ
C595
0.1µ
+DDR_VREF