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Last reply by 07-17-2021 Solved
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Precision T7810 PSU Upgrade

I have a Precision Tower 7810. I just bought RTX3080 Graphic Card. It needs 2x8Pin power connectors. Around 320W. My current PSU is 825 W is not enough. I want to upgrade it & i need your advices. Which to fit ? : /

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9 Rhodium

Dell MF4N5 6MKJ9 0T6R7 1300w Power supply DELL T7910 T5810 T7810 T7610

https://www.amazon.com/1300W-Power-Supply-Precision-Workstation/dp/B07MW93453/

Safe connections would use 2X sata power for each 6 pin

You should have ONE  cable with 2 6 pin that goes into an 8 pin.

The other 2 X 6 pin to 8 PIN comes from 4 SATA Power connections.

I'm getting the 1300w unit for mine so I dont have to worry that it will DIE and FRY. There are lots of separate extra Sata power connections inside.

DO NOT BUY a single sata to 8 pin. Those are not safe.

cutting corners on safety to save $12 can cost you your life when it burns the house down.  4 wires is minimum safe margin for the connector. This is because each 6 pin is rated at 6.25 amps and each 8 pin has a 12.5 amps rating for 12v

connectorsconnectors

https://www.amazon.com/Cable-Matters-2-Pack-PCIe-Power/dp/B01DV1Z5S6/

 

https://www.amazon.com/COMeap-Female-Adapter-Sleeved-9-5-inch/dp/B081LRKX78/

Each wire has a max current rating which is why do DO NOT just double up what you have the other wayEach wire has a max current rating which is why do DO NOT just double up what you have the other way

USE THESE WITH AN ADAPTERUSE THESE WITH AN ADAPTER

 


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Nvidia recommends 750w PSU.  825w has that exceeded.

https://www.google.com/amp/s/www.pcworld.com/article/3575494/do-you-need-a-new-power-supply-for-nvid... 

Capture+_2020-12-05-19-51-54.png

 




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Thanks for the reply sir.
But GPU needs 2x8pin cables coming from PSU which i dont have. I just have a free 8pin for PCI-e.
And if i use "8pin to double 8pin adapter" the system shuts down under GPU overload. Everbody suggests two seperate cables.
If i unmount the optical drive and the harddrives and i use a "double sata to 8pin adapter" maybe it would work. But i dont know it sounds risky to me using sata power for GPU.
So yeah, 825W looks enough but there is no proper tool to connect.

@_@_

9 Rhodium

Dell MF4N5 6MKJ9 0T6R7 1300w Power supply DELL T7910 T5810 T7810 T7610

https://www.amazon.com/1300W-Power-Supply-Precision-Workstation/dp/B07MW93453/

Safe connections would use 2X sata power for each 6 pin

You should have ONE  cable with 2 6 pin that goes into an 8 pin.

The other 2 X 6 pin to 8 PIN comes from 4 SATA Power connections.

I'm getting the 1300w unit for mine so I dont have to worry that it will DIE and FRY. There are lots of separate extra Sata power connections inside.

DO NOT BUY a single sata to 8 pin. Those are not safe.

cutting corners on safety to save $12 can cost you your life when it burns the house down.  4 wires is minimum safe margin for the connector. This is because each 6 pin is rated at 6.25 amps and each 8 pin has a 12.5 amps rating for 12v

connectorsconnectors

https://www.amazon.com/Cable-Matters-2-Pack-PCIe-Power/dp/B01DV1Z5S6/

 

https://www.amazon.com/COMeap-Female-Adapter-Sleeved-9-5-inch/dp/B081LRKX78/

Each wire has a max current rating which is why do DO NOT just double up what you have the other wayEach wire has a max current rating which is why do DO NOT just double up what you have the other way

USE THESE WITH AN ADAPTERUSE THESE WITH AN ADAPTER

 


Report Unresolved Customer Service Issues
here

I do not work for Dell. I too am a user.

The forum is primarily user to user, with Dell employees moderating
Contact USA Technical Support


Get Support on Twitter @DellCaresPro


Diagnostics & Tools

Community Accepted Solution

Does this 1300 watt PSU work in the 7810? Is it safe?

There is no link or photo as to the PSU you're referring to.  If you're referring to a PSU speedstep recommends, then it's safe.




- Please kudos posts you like!
- Please "Accept as Solution" posts that are a solution.
- If you have an Optiplex, stating its model number AND size speeds up troubleshooting. Components vary.

Code of Conduct
TechSupport YouTube

I'm a big fan of Dell, a Dell user, and not an employee. This forum is user to user with occasional assistance by other Rockstars or Dell employees.

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