HP Dc7900 Troubleshooting Guide - Page 21

Solving Power Problems continued, Table 2-2

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Table 2-2 Solving Power Problems (continued) Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.) Cause Solution the power supply adapter with the HP-supplied USDT power supply adapter. ENWW Solving Power Problems 15

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Power LED flashes Red four times, once every second, followed by a two second pause, and the computer beeps four
times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause
Solution
the power supply adapter with the HP-supplied USDT power
supply adapter.
Table 2-2
Solving Power Problems (continued)
ENWW
Solving Power Problems
15