Samsung R530, Service Manual

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4-20
4. Troubleshooting
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R530/R730
4-6. CPU Fan Control
How to Check the CPU Fan
The Fan does not work normally.
1. Check if the Thermal is locked tightly.
2. Check if the Fan cable is properly connected.
3. Fan change.
Checking the Work of FAN
One can turn the fan on & off and check the fan’s operational conditions without system disassembly.
Pic (1) Fan off status Pic (2) Fan on status
SAFC's default setting is "Fan off" or "Minimum Fan Speed".
- Press "ON" in "ON/OFF Control" Fan is turned on to maximum fan speed.
- Press "OFF" in "ON/OFF Control" Fan returns to default setting.
Pic (3) Adjust FAN State
[ Fan Voltage Measurement ]
- Read Fan RPM indicated in SAFC.
[ Fan Voltage Pass/Fail determination ]
- If Fan RPM satisfies "rpm spec +/-10%", then Fan test is "PASS"
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