mitac 8599.pdf - tim.id.au
mitac 8599.pdf - tim.id.au
mitac 8599.pdf - tim.id.au
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8.7 Memory Test Error (1)<br />
Extend DDRAM is failure or system hangs up.<br />
Memory Test Error<br />
1. If your system installed with expansion<br />
DDR SO-DIMM module then check<br />
them for proper installation.<br />
2. Make sure that your DDR SO-DIMM<br />
sockets are OK.<br />
3. Then try another known good DDR<br />
SO-DIMM modules.<br />
Test<br />
OK?<br />
No<br />
Yes<br />
If your system host bus clock running at<br />
266/333/400 MHZ then make sure that DDR<br />
SO-DIMM module meet require of PC<br />
2100/2700/3200.<br />
Test<br />
OK?<br />
No<br />
Yes<br />
8599 N/B Maintenance<br />
Replace the f<strong>au</strong>lty DDR<br />
SDRAM module.<br />
Replace the f<strong>au</strong>lty DDR<br />
SDRAM module.<br />
Board-level<br />
Troubleshooting<br />
Replace<br />
Motherboard<br />
One of the following components or signals on the motherboard<br />
may be defective ,Use an oscilloscope to check the signals or<br />
replace the parts one at A <strong>tim</strong>e and test after each replacement.<br />
Parts:<br />
U12<br />
U19<br />
U13<br />
J18<br />
R287<br />
R133<br />
Q12<br />
Q16<br />
R251~R254<br />
R49<br />
R58<br />
+1.25V_DDR<br />
+2.5V_DDR<br />
+DDR_VREF<br />
DDR_CKE [0:3]<br />
DDR_CS[0:3]#<br />
DDR_MA [0:12]<br />
DDR_MD [0:63]<br />
DDR_DQS [0:7]<br />
DDR_BA [0,1]<br />
DDR_DQM [0:7]<br />
Signals:<br />
DDR_RAS#<br />
DDR_CAS#<br />
DDR_WE#<br />
SMBDATA<br />
SMBCLK<br />
HCLK_SISM661FX<br />
HCLK_SISM661FX#<br />
CLK_DDR [0:5]<br />
CLK_DDR [0:5]#<br />
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