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04-13-2022 11:43 PM - edited 04-13-2022 11:45 PM
Workstation turn on and off immediately, no beep sound, just PSU and CPU fan runs for few seconds and stops, replaced power supply unit, but issue is not resolved.
04-14-2022 12:15 AM - edited 04-14-2022 12:17 AM
go to the HP site for the z440 download the service manual.............READ doing so will allow you to use the HP troubleshooting steps hp wrote
the symptoms you describe sound like a power short or possibly a bad motherboard, remove all cards ram except for vid card and just one ram stick (in proper slot)
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