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HP EliteDesk 800 G3 Small Form Factor PC (ENERGY STAR)

Hello, has anyone been successful in upgrading the 180W psu in the elitedesk 800 G3 sff to the 400W version (L04618-800)? I can’t get the lid to fit onto the case of the computer. Before upgrading the psu, I opened and closed the lid several times without issue.

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Okay, after messing with it for hours I finally got it to work. You need to remove the hdd/optic drive holder so that there is enough clearance for the power supply. Other than that, the PSU works perfectly. I hope this helps someone out. 🙂

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HP Recommended

Okay, after messing with it for hours I finally got it to work. You need to remove the hdd/optic drive holder so that there is enough clearance for the power supply. Other than that, the PSU works perfectly. I hope this helps someone out. 🙂

HP Recommended

Ensure all the cables from the new PSU are routed properly and not bulging against the case lid.

HP Recommended

Unfortunately, whenever I tried to close the hard drive tray, it would just barely make contact with the power supply. Maybe it was the psu cables getting in the way, but whenever I removed the tray, the lid closed just fine. 🤷🏻‍♂️

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