4 beeps and blinks boot error on DC7900 USDT (4559 Views)
Occasional Contributor
Posts: 7
Registered: ‎02-04-2010
Message 1 of 2 (4,559 Views)

4 beeps and blinks boot error on DC7900 USDT

After power unit connected, 4 beeps and 4 blinks on DC7900 USDT


According to the Technical Reference Guide,


" Power failure (power supply is overloaded). Check storage devices, expansion cards and/or system board (CPU power connector P3)"


but, I didn`t find any disconnected parts and where CPU power connector P3 is

Is there any clue for this error?


thank you for any help

Honored Contributor
Posts: 8,239
Registered: ‎10-25-2004
Message 2 of 2 (4,543 Views)

Re: 4 beeps and blinks boot error on DC7900 USDT

I would start by disconnecting any Hard drives , optical drives and floppies drives power connectors and see if it will get past the 4 beep error code. The other item to try is to try to reset the power supply. Unplug the power cord and then press the power button. Wait 15 minutes and see if it will come on inspect the unit and make sure that all power connectors are seated properly. If this doesn't work you may have a dead power supply or motherboard  

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