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09-15-2022 04:54 PM - last edited on 09-16-2022 07:28 AM by MarcusC
I'm looking to upgrade the default 180W psu I got with my HP pavilion with a standard PSU. After doing some research, I found that a standard atx psu can work if the 4 pin connectors sit on the 12v rail. I would like to double check my research before risking any damages.
09-15-2022 07:52 PM - edited 09-15-2022 10:27 PM
All right, here we go:
Besides your 180-watt power supply (HP p/n: HP L08660-800), there are three additional OEM HP power supply units which are compatible with your Sunflower (SSID: 8433) motherboard:
1.) 310-watt PSU (p/n: L03980-800) which can be bought online, such as this example: L03980-800 original HP Desktop-PC power supply 310 Watt - sparepartworld.com,
2.) 400-watt PSU (HP p/n: L04618-800) which can be bought online, such as here: hp L04618-800: Search Result | eBay,
3.) 500-watt PSU (HP p/n: L05757-800), but this PSU does not quite fit all of the screw mounting holes in your PC. This PSU is also available online, such as this example: L05757-800 original HP Desktop-PC power supply 500 Watt - sparepartworld.com.
The 400 and 500-watt power supply units are both equipped with a single 6+2-PCIe power cable.
Be my guest: look around online, but as you'll see, these OEM HP PSUs are annoyingly expensive especially compared to high-end ATX power supplies, but at least they are plug-and-play.
Personally, for high-end graphics card power supply upgrade purposes, I prefer using an ATX 24-pin PSU to SATA 15-pin Power Supply Adapter, such as this one: DUAL ATX PSU ADAPTER ATX 24Pin to SATA Power Supply Adapter Cable Card ETH RVN | eBay, which allows you to use a secondary power supply to sync with the primary (stock) power supply unit, like I did in my HP EliteDesk 800 G3 SFF upgrade project: Solved: Upgrading HP EliteDesk 800 G3 SFF - HP Support Community - 8251218.
Hope this was helpful.
09-16-2022 12:29 AM
09-16-2022 06:44 AM
Going the OEM route makes no sense to me when you consider I originally bought the parts for $25 USD. The dual psu option is something I can do but that would look messy for a htpc/vr rig I was planning on leaving in my living room.
I know I can get a standard PSU to work with this motherboard after watching This video but I'm still not confident enough to attempt this without someone with more experience than me giving me the green light. I hope your friend can give the green light I need to boot this a standard PSU.
Also, thanks for going out of your way to get the OEM model numbers for me.
09-16-2022 07:25 AM
you may want to rethink your current plan using the sunflower motherboard, since it's not directly atx compatible
look on ebay for the HP/Dell/Lenovo "SFF" style boxes the older models like the HP 6300 pro/elite 8300 models can be had a complete running systems for around 70.00 including shipping
a used Mini-ITX setup is also viable
last, the older thin clients may also work such as the HP units
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