07-02-2011 02:42 AM
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
07-04-2011 10:19 AM
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