MiTAC E-8590, Service Manual, Page: 178 / 252

177
LCD PC E
LCD PC E
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8590 MAINTENANCE
8590 MAINTENANCE
8.5 Memory Test Error
Symptom: The extend DDR RAM is failure or system hangs up.
DDR_MA [ 0 . . 12 ]
DDR_CAS# DDR_BA [ 0 , 1 ]
DDR_RAS# DDR_WE#
RP23, RP1, RP3, RP5, RP7,
RP11, RP17, RP19, RP21,
RP29, RP31, RP26,RP43,
RP45, RP59, RP61,RP57,
RP13, RP38, RP9, RP40, RP66 10*4
CKE[2:3]
CLK_DDR [0,2 ]
CLK_DDR [0,2 ] #
+2.5VDUAL
MD [ 0 : 63 ]
J5
DDR/184P
DDR_MD [ 0 : 63 ]
DDR_DQM [ 0 . . 7 ]
DDR_ DQS [ 0 . . 7 ]
R{62,55,52,51,49,44,46,64,42,87,66} 10K
RP16 10*4 RP3510*4
CKE[0:1]
SMBDATA
+DDRVREF
SMBCLK
SMBDATA
27
28
SMBCLK
CLK_DDR [3,5 ]
CLK_DDR [3,5 ] #
P
17
U5
North Bridge
VT8703
P
5
U5
North Bridge
VT8703
P
11
U19
ICS950902
R193 R208 R204
R194 R209 R205
R195 R224 R206
R196 R225 R207
+2.5VDUAL
+DDRVREF
J4
DDR/184P
P
7
P
7
P
17