Hello Customer,
Welcome and Thank you for posting your query on HP Support Forum
HP do not recommend upgrading the PSU on Small Form Factor PC.
Please click on the below link to check the compatible upgrades:
http://www8.hp.com/h20195/v2/getpdf.aspx/c04287230.pdf?ver=1
****Click the Kudos Button on left to say Thanks****
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.
Thank You,
K B T 86
Although I am an HP employee, I am speaking for myself and not for HP
