Is it safe to replace the power supply with a third-party unit?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
From the official HP Elitedesk 800 G3 Small Form Factor PC manual, page 49
People also ask
Are third-party power supplies safe for my HP Elitedesk 800 G3 SFF PC?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
Why shouldn't I use non-HP recommended power supply units with this desktop model?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
What are the safety risks of installing a third-party power supply?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
What are the risks of using an unapproved replacement power adapter in my HP desk unit?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
Where can I purchase an HP-approved replacement power supply?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
Why must I disconnect the power cord before opening the computer chassis?
No — only the power supply provided with the computer, a replacement power supply provided by HP, or a power supply purchased as an accessory from HP should be used with the computer. Using a non-HP power supply may create potential safety issues. Additionally, voltage is always present on the system board when the computer is plugged in, so the power cord must be disconnected before opening the computer. (Page 49)
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