HP Pro MT 400 G9 PSU

[Breunesseict]

Hi, im looking for a PSU of minmimal 500w for my HP Pro MT 400 G9.

Anyony who can help me with a part number or model what i can use? I search a lot, but this is a specific one?

Kinds regards

[NonSequitur777 · Accepted solution]

@Breunesseict,

Welcome to our HP User Forum!

All right, this took some researching to provide you with at least some helpful info, here we go.

Your HP Pro Tower 400 G9 PCI Desktop PC, according to: https://kaas.hpcloud.hp.com/pdf-public/pdf_7905569_en-US-1.pdf, and: https://h20195.www2.hp.com/v2/GetDocument.aspx?docname=c08045260&search=pro%20400%20G9, can be fitted with three different power supplies: a 180-watt PSU with p/n: N06218-001 "SKO-PSU 180W EPA90 1x12V", a 260-watt PSU with p/n: M86263-001 "SKO-PSU 260W ENT22 EPA92 2x12V", and a 400-watt power supply with p/n: "?".

You read that right: the part number for the 400-watt power supply compatible with your Tower Desktop must be a closely held bit of information, on a need-to-know basis. 😁

It appears that there are no 500-watt power supplies available for your desktop.

However, having worked on several HP desktop upgrade projects, the most likely* compatible 400-watt HP power supply for your PC has p/n: L04618-800 "Power Supply - GNRC PSU 400W SFF Entl FR".

* Best guess effort.

But be aware: there are (at least) three (3) different L04618-800 power supply configs on the market having different 7-pin P2 power connector wirings:

1.) red/white, white, black, green, grey, empty, black
2.) red/white, white, black, green, grey, purple, black
3.) empty, empty, empty, green, grey, empty, black

The one you want (assuming you want one) is the second option, highlighted in blue.

Reason being that the 260-watt power supply option has this P2 wiring config:

Anyway, if interested, you can purchase an L04618-800 power supply online, such as via eBay.  Make sure you communicate with the Seller(s), to make sure you actually get the aforementioned P2 color-wired power supply.  This power supply is A-OK to power up to an HP (or Dell-) branded RTX 3060, good enough for Ultra+ 1080P gaming, btw.

Hope this was helpful.

Kind Regards,

NonSequitur777

[Breunesseict]

Thank you for your very detailed answer! I'm going to try to order the good 400 watts.

[NonSequitur777]

@Breunesseict,

You are quite welcome!

Please let me know how things worked out for you.

Kind Regards,

NonSequitur777