043 (continued)
– Power on the system unit.
– Make a note of any error messages, if present, and press the Esc key.
IS THE SCREEN BLANK (DARK)?
Yes No
044
Go to Step 065 on page 2-109.
045
(From step 105)
– Power off the system unit.
– Disconnect the power cables to the system board and drives.
– Power on the system unit.
– Check the voltages at the power supply connectors to the system board
as indicated.
– PWR GOOD
– +3.75 to 6.25 V dc
– +9 to 15 V dc
– -9 to 15 V dc
GND
– -3.75 to 6.25 V dc
– +3.75 to 6.25 V dc
Figure 2-13. System Board Power Supply Connectors
ARE THE VOLTAGES CORRECT?
Yes No
046
(Step 046 continues)
Diagnostic Information 2-105
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