what power supply to use with my hp elitedesk 800 to power m... - HP Support Community

honeyboy · ‎02-27-2020

Hello,

I have an hp elitedesk 800 G1, I wanted to install a decent graphics card to do some gaming but the power supply (switching power supply) does not come with any 6 pin or molex cords to power my graphics card. The cord that powers the motherboard from the power supply is a 6 pin (normally in any regular pc's it's a 24 pin cord), so I used a thermaltake 600 watts to swap the power supply, and to power the motherboard I bought an adapter from 24 pin to 6 pin, it links the power supply to the motherboard, and that way the new power supply gives me not only 6 pins but also 8 pins adapters, but the problem is after everything is installed no power. the computer does not turn on, and I know it works with its regular power supply. I know and I think the power supply is not made to work for this pc can anybody explain to me why the other power supply does not work with this pc and is there any other power supply that can work with this pc and provides me the cables I need at least a 6 pin or a molex

1) this is the hp elitedesk 800 G1 it's the full tower not sff, similar to 800 G1-T

2) link to 24 pin to 6 pin connector :

https://www.ebay.com/itm/New-12-ATX-Main-24-Pin-to-6-Pin-PSU-Power-Adapter-Cable-18AWG-for-HP-Z220-Z...

3) the new power supply comes with both 2 x 4 pin or if you want to use it as 8 pin

the cpu is powered by a 4 pin only

thank you for your time

wb2001 · ‎02-28-2020

@honeyboy,

When you ask such a question it is of great benefit to not only mention the exact model of the computer (SFF, USDT) , but to give a link to the 24 pin to 6 pin connector so that someone can comment. What about the 2x2 power plug? You ignored it?

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honeyboy · ‎02-28-2020

1) this is the hp elitedesk 800 G1 it's the full tower not sff, similar to 800 G1-T

2) link to 24 pin to 6 pin connector :

https://www.ebay.com/itm/New-12-ATX-Main-24-Pin-to-6-Pin-PSU-Power-Adapter-Cable-18AWG-for-HP-Z220-Z...

3) the new power supply comes with both 2 x 4 pin or if you want to use it as 8 pin

the cpu is powered by a 4 pin only

wb2001 · ‎02-28-2020

@honeyboy

Understood. The new ATX PSU's has the CPU power plug and a PCIE power plug. Your just adapting the 2x3 and the inline.

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HP Envy 8 5010 Tablet
(2) HP DV7t i7 3160QM 2.3Ghz 8GB
Printer -- HP OfficeJet Pro 8620 Legal
Custom Asus Z97D, I7-4790k, 16GB RAM, WIN10 Pro 64bit, ZOTAC GTX1080 AMP Extreme 3 fan 8GB RAM, 500GB SSD, Asus PB287 4k monitor, Rosewill Blackhawk case and 750W OCZ PSU.

what power supply to use with my hp elitedesk 800 to power my graphics card ?

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