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HP Recommended
HP Z440 Base Model Workstation
Microsoft Windows 10 (64-bit)

Whenever I first switch ON my Z440 workstation usually in morning it sounds 5 beeps for 5 times and doesn't turn on. I switch off main power and try again and after 2nd or 3rd attempt it start working properly.  Specs.: Windows 10, 16 GB RAM (4 sticks each of 4GB), 512 MB NVIDIA display graphic card.

 

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