LED Startup Sequence
LED #1 = Power available.
If no LED is visible:
• Verify AC source
• Verify known-good AC cable is connected
• Verify cable connection between AC inlet and power supply
• Verify cable connection between power supply and logic board
• Verify power supply
LED #1 + LED #2 = Power available, and system is powered on.
If second LED is not visible when power button is pressed:
• Verify power button connection to logic board
• Verify power button functionality
• Verify cable connection between power supply and logic board
• Verify power supply
• Verify logic board
LED #1 + LED #2 + LED #3 = Power available, system is powered on, and video card found.
If third LED is not visible after power on:
• Verify that MXM video card is seated properly
• Verify logic board
You said LEDs 2 & 3 flash. Does 1 stay on or go out after that?
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2 Kommentare
Please give us the last 3 characters of your serial number so we can verify your exact machine and better be able to help you.
von ABCellars
Well, that's what I thought, but I hate to put money into it only to find out it's the logic board. Guess I will roll the dice, though, your answers confirm my thoughts.
Thanks!
von djmoonw