110
Prestigio Cavaliere 141
Technical Service Manual
8.6 Memory Test Error
Symptom:
Either on board or extend DDR RAM is failure or system hangs up.
U503
North Bridge
SiS650
U510
ICS93772
DDR_MA [ 0 . . 12 ]
DDR_CAS# DDR_BS [ 0 , 1 ]
DDR_RAS# DDR_WE#
CLK [ 3 , 4 ] CLK [ 3 , 4 ]#
U7 U8
U9 U10
J509
U511 U512
U513 U514
+2.5V_DDR
MD [ 0 : 63 ]
U516
South Bridge
SiS961
SODIMM Socket
P
6
P
16
P
9
P
12
P
11
DDR_MD [ 0 : 63 ]
DDR_DQM [ 0 . . 7 ]
DDR_ DQS [ 0 . . 7 ]
RP11 RP12 0*8
RP4 0*4
DDR_CKE[ 2 , 3 ] DDR _CS# [ 2 , 3 ]
CLK [ 1 , 2 ] CLK [ 1 , 2 ]#
SMBDATA
+VREF_DIMM
U508
Clock
Generator
ICS952001
FWDSDCLKO
R84
22
C125
10P
SMBCLK
SMBDATA
8
7
22
35
34
SMBCLK
P
9
+VREF_DDR
+2.5V_DDR
RP6 RP7 RP8
RP9 RP10 RP13
RP14 RP15 RP16
RP17 10*8
DDR_CKE [ 0 , 1]
DDR_CS#[ 0 , 1 ]