HP 600 G9 Tower PSU upgrade

[KingMasterPrime]

Good morning everyone, I bought an HP Elite Tower 600 g9 i7 with 400W power supply. I need to install a more powerful video card such as the GTX 4080 but the original HP power supply is not powerful enough. Can I replace the original power supply?

I'm looking for either an adapter so I can add 750W, or is there an alternative PSU from HP?

Failing 750W what is the highest I can get?

[NonSequitur777]

@KingMasterPrime,

Welcome to our HP community forum!

Well, failing a 750-watt power supply, there may be a compatible 550-watt power supply (p/n: M86264-001) for your HP Elite Tower 600 G9, as it is compatible with the HP Elite Tower 800 G9: Solved: HP Elite Tower 800 g9 - PSU upgrade to 500W - HP Support Community - 9004390.

The reason why I think this 550-watt power supply is compatible for your 600 G9, is that your 400-watt power supply (N03175-001) is also compatible with the 800 G9, such as this example: HP PartSurfer -ergo.

The 550-watt power supply is in stock via HP-United Kingdom:

Or via an eBay-UK Seller: HP M86264-001 SKO-PSU 550W ENT22 EPA92 5x12V | eBay.

With a 550-watt power supply, you can power a smaller-sized (two fan) RTX 4070 model, powered by a single 8-pin PCIe power cable, such as this model: ASUS DUAL RTX 4070 EVO Specs | TechPowerUp GPU Database.

Hope this was helpful.

Kind Regards,

NonSequitur777

[KingMasterPrime]

Is it possible to use a 16pin card with that 550W PSU? Sorry for the dumb questions, in the past I just bought standard PSU's so have never had to bother with this.

[NonSequitur777]

@KingMasterPrime,

Sorry -possibly due to a brainfart, but what do you mean with "a 16pin card"?

Kind Regards,

NonSequitur777

[KingMasterPrime]

Sorry my bad. Some graphics cards are listed as needing a 16 pin power connector.

Thank you for your help, much appreciated. 

[KingMasterPrime]

Also, would this work?

https://www.ebay.co.uk/itm/296386917692?chn=ps&_ul=GB&_trkparms=ispr%3D1&amdata=enc%3A12a48j_ynQrOEc...

Sorry for the lame questions. 

[NonSequitur777]

@KingMasterPrime,

The ATX power adapter you referenced only works on the ProDesk 600 G1, not the G9.

And I would avoid graphics cards requiring a 16-pin PCIe power cable for your PC.  With the 550-watt power supply I mentioned, you can power a smaller-sized (two fan) RTX 4070 powered by a single 8-pin PCIe power cable, such as this model: ASUS DUAL RTX 4070 EVO OC Specs | TechPowerUp GPU Database.

Kind Regards,

NonSequitur777