mj23e
1 Copper

Dual Nvidia GTX 1080Ti on Precision Tower 5810

Hi,

We'd like to buy a precision workstation and add 2x Nvidia GTX 1080 Ti video cards. Each of these cards requires 2x 8-pin power connectors, and draw a little under 300W at max load.

Is it possible to make this work with the Precision Tower 5810? It has an 825W PSU option, which should be adequate. Is there any way to make it provide the necessary power connectors (4x 8-pin)?

Also, what is the longest video card this workstation can accommodate?

Thanks for the help. We're trying to avoid buying a 7910, which has a ton of stuff we don't need.

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3 Replies
speedstep
6 Thallium

RE: Dual Nvidia GTX 1080Ti on Precision Tower 5810

There is 75W for each Slot and 225W for each 8 pin connector.   AKA 450w from 8 pin Connectors and 150w from 2 pci-e X16 slots.  Since the 7910 Does not operate with 225w for everything else and 600w for 2 Video cards aka Each 1080ti draws 300w this is not working.

This is why the 3 card capable alienware box uses 1500w not 850w when using more than 1 video card.

So no what you are asking is not supported.

 


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Dan-H
3 Zinc

RE: Dual Nvidia GTX 1080Ti on Precision Tower 5810

what are you trying to do with the 5810, or in other words, what software, what workload?

Which CPU or CPUs are you planning to get?

It might be cheaper to just upgrade the PSU. You can certainly get a higher quality PSU than what Dell installs.

.

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speedstep
6 Thallium

RE: Dual Nvidia GTX 1080Ti on Precision Tower 5810

The 5810 uses proprietary Slot Loading W1FJK Power supply So there isn't a  higher quality PSU option. Stock unit is only 425W which is why it DOES NOT COME WITH 150W  D92C9 cable and 825W power supply.

Unofficially you can use the cable below.  But Again this is for ONE 8 pin to 2x  6 pin aka 300W total if you include the slot.

https://www.amazon.com/Lodfiber-Adapter-T5810-Working-Temperature/dp/B06Y3WWQYP/

 

https://topics-cdn.dell.com/pdf/precision-t5810-workstation_Owner%27s%20Manual_en-us.pdf

 


 

825W being max size means this is a non starter.

There is also the issue of the PCI-E power connectors from the Power Supply Slot connector.  Dell makes a dual 6 pin wire. 

 



PCIe 3.0 is 225/300W  per 8 pin connector- http://www.pcisig.com/developers/main/training_material...

The old 6 pin connectors are rated at 150W each.

 


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