Memory Test Error - Prestigio CAVALIERE 141 Technical & Service Manual

Prestigio Cavaliere 141

8.6 Memory Test Error

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