User Guide

8965 N/B Maintenance
8965 N/B Maintenance
109
8.6 Memory Test Error (1)
Extend DDRAM is test error or system hangs up.
Memory Test Error
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.
Test
OK?
Replace the faulty DDR
SDRAM module.
Yes
No
Parts:
U709
U713
U711
J716
J719
R[321..338]
R[346..363]
RP[14..75]
R[911..921]
Signals:
If your system host bus clock running at
333/400 MHZ then make sure that DDR SO-
DIMM module meet require of PC
2700/3200.
Test
OK?
Yes
No
+2.5VS_DDR
+DDRVREF_ [1,2]
CKEA[0..1]
CKEB[0..1]
SMBDATA
SMBCLK
DDR_BAA [0,1]
DDR_BAB [0,1]
DDR_MAA[0..12]
DDR_MAB[0..12]
DDR_CLK [0..5]
DDR_CLK [0..5]#
Board-level
Troubleshooting
Replace
Motherboard
Replace the faulty DDR
SDRAM module.
DDR_WEA#
DDR_WEB#
CSA[0,1]#
DDR_RASA#
DDR_RASB#
DDR_CASA#
DDR_CASB#
1. If your system installed with expansion
DDR SO-DIMM module then check
them for proper installation.
2. Make sure that your DDR SO-DIMM
sockets are OK.
3. Then try another known good DDR
SO-DIMM modules.
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