158
8175 N/B MAINTENANCE
8175 N/B MAINTENANCE
Memory Test Error
Test
OK?
Replace the faulty
SDRAM module.
Yes
No
1.If your system installed with expansion
SO-DIMM module then check them for
proper installation.
2.Make sure that your SO-DIMM sockets
are OK.
3.Then try another known good SO-DIMM
modules.
If your system host bus clock running at
100MHZ then make sure that SO-DIMM
module meet require of PC 100.
Test
Ok?
Replace the faulty
SDRAM module.
Yes
No
Board-level
Troubleshooting
Replace
Motherboard
One of the following components or signals on the motherboard may
be defective ,Use an oscilloscope to check the signals or replace the
parts one at A time and test after each replacement.
Parts:
U3 RP7
RP9 RP3
RP14 J505
J503 U17
Q7 Q8
Q15 R51
Signals:
MD [0:63]
MDD [0:63]
MA[0:14]
MAA[0:14]
-DQMA[0:7]
-MDQMA[0:7]
-CS[0:3]
-MCS[0:3]
-SWEA
-MSWEA
-SCASA
-MSCASA
-SRASA
-MSRASA
CK[0:3]
CKE[0:3]
SDRAMCLK1
SDRAMCLK2
SDRAMCLK4
SDRAMCLK5
SMBCLK
SMBDATA
SMBDATA0
SMBDATA1
DRAMENA
8.6 Memory Test Error
Either one or two extend SO-DIMM RAM Module is failure or system hangs up.
