Troubleshooting | General/ Logic Board Troubleshooting - 19 |
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other port can still be functional. These LEDs are not immediately illuminated at the beginning of a restart or cold
1.Unit is powered on and other LEDs will illuminate while DS4 and DS5 are off.
2.Then DS4 and DS5 on for a second or two
3.Then off very briefly (1 second)
4.Then back on (confirms secondary PCI bus is initialized and power now available)
These two LEDs are often useful when troubleshooting an unpredictable system. If they stay on (step 4) then the secondary PCI bus has been initialized which happens relatively late in the boot/hardware initializing process.
