09-28-2020 10:37 PM
HP EliteDesk 800 G1 USDT. After connecting the power cord and I pressed the power on button, the system powers on and immediate the fan stops and it gives 5 sets of four beeps with red light flashing on the power button. And nothing happens after that.
09-28-2020 10:55 PM
most likely power supply related, try disconnection all drives ext devices except for the video/ram and if still getting this error try replacing the pwr supply
note that some systems have motherboard connectors for the Drive power instead of on the power supply
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