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- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- PSU Upgrade for

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10-09-2023 10:25 AM
Hello, I am wondering which PSU upgrades would be compatible with my machine. It has the original Sunflower board and original 180w PSU, and the original CPU cooler. I upgraded with a Ryzen 7 2700 CPU, 16gb DDR4 DIMM RAM, and a Yeston Radeon 550RX GPU, I would like to upgrade my GPU and RAM again but may need a new PSU, I don't want to fry my motherboard in the process so may I get assistance or guidance?
Solved! Go to Solution.
10-09-2023 10:46 AM
Welcome to our peer-to-peer HP Community Forum!
Your HP Pavilion 590-p0103wb is fitted with a Sunflower motherboard (SSID: 8433), with p/n: 942023-001 "Motherboard - Sunflower, AMD Raven Ridge PROM2".
There are two compatible power supply upgrades available for your desktop.
There is a 400-watt power supply with p/n: L04618-800 and a 500-watt power supply with p/n: L05757-800.
Reference: Power Supply Cross Reference for specific models - HP Support Community - 7483923.
Both power supplies can be purchased online, such as through eBay.
Hope this was helpful.
Kind Regards,
NonSequitur777
10-09-2023 10:51 AM