Precision 5810 PSU to GPU cable

I would check with CHRIS M .   I believe its D92C9  

I also came across this

http://www.ebay.com/itm/8pin-to-8pin-6pin-Power-Adapter-Cable-for-DELL-Precision-Tower-7810-T7810-35cm-/191831950590

Any idea what the 8 pin version of this cable is?

I have 'Precision Tower 5810' as well but adding nVidia 1080's to the computers so I need a 8 pin connector instead of the above 6.

Note, Dell never tested the consumer video cards in this 2014 Precision. We only tested the enterprise Quadro and FirePro video cards. I do not understand your setup. The 1080s should have 8 pin power ports. So D92C9 should work.

Precision Tower 5810 PSU two 6pin PSU leads --> Dual 6pin to Single 8pin cable --> 1080 8pin power connector

The Precision Tower 5810 PSU has 6 pin cables. How many PSU leads do you see coming from our PSU? Please explain in detail. These are all I see on the Precision Tower 5810 parts page =
D92C9 = Dual 6pin to Single 8pin cable
0MG89 = Single 6pin to Single 8pin cable

What about

 8pin to 8+6pin Power Adapter Cable  DELL 9H6FV

9H6FV = Power Cable for Riser to GPU, Poweredge R720 ??

It looks like this.

You can mod

6 PIN splitter cable part number D92C9 with an additional dual 6 to 8 adapter.

https://www.amazon.com/GutsParker-6-Pin-Female-8-Pin-Cable/dp/B01J77U34Y/

Thanks.  Not sure why I didn't think of that.  Much appreciated.  Have one on order and should resolve my issue.

mhzman

EXCELLENT! This should solve the issue I am having too.

Okay I'm shortening up my diary here, once and for all. I went through a lot of research and came back to constantly update this thread with my findings.  And can now limit it to just this.

Recommended setup for a single 8-pin, or 6+8-pin setup:

A.) For a standard, single 8-pin setup all you need is this dual 6-pin to single 8-pin connector(below). This effectively and efficiently uses the original 6+6 pin cables into one.

https://www.amazon.com/GutsParker-Premium-Braided-6-Pin-Female/dp/B0721R2SR7/ref=sr_1_4?s=electronics&ie=UTF8&qid=1513025688&sr=1-4&keywords=dual+6+pin+female+to+8+pin

B.) For 6+8-pin setups, grab the above, plus the below single SATA power-to-6-pin cable.

https://www.amazon.com/Cable-Matters-2-Pack-PCIe-Power/dp/B01DV1Z1ZI/ref=sr_1_4?ie=UTF8&qid=1513274853&sr=8-4&keywords=sata+power+to+6+pin

Keep in mind the above uses one of the Precision's three provided SATA power connectors. So if you must run a DVD drive, and dual HDD's you will want to invest in a SATA power Y-splitter, as to not short yourself power options.

You can use dual SATA Power to 8-pin adapters, forgoing the need to use any of original PCIE 6+6 cables, but you may as well use the designated PCIE power connectors provide to you, and not short yourself SATA power options. A Chinese ebay seller also sells a replacement cable to convert your original extender board PCIE cable to 8+6 pin. It might not be the most reputable method, but I don't see what's wrong with it in this context, other than the 2-3 week shipping time.

https://www.ebay.com/itm/8pin-to-8pin-6pin-Power-Adapter-Cable-for-DELL-Precision-Tower-5810-T5810-35cm/191816769622?hash=item2ca92ba056:g:SPkAAOSwll1W1Uef

I will conclude that I have tested running a GTX 1080 with just a single 6 pin connector(instead of 8-pin) and got average benchmark results similar to other GTX 1080s. It did not noticeably short me on power, vs, 8-pin. However, I am now running Radeon Pro Duo - 32GB which is a dual GPU card that requires 6+8-pin, and the PC would not post with the original 6+6-pin configuration. Therefore, it clearly depends on the card, as to how it will behave.

So, I just had one last thing to chime in with.

I just had a brainstorm of an idea...okay, well, not really, but I was stupid not to think of it a year earlier.

I just ran a GPU benchmark. Something I haven't done since I cared about the sort of thing, which was probably about 4 years ago. 4 years ago I couldn't stop thinking about system scores, and now I've forgotten about that part of me.

This is a good way to find out if your card is being leveraged...by simply comparing results to other "like cards."

Turns out I'm right in the upper midrange, in terms of a typical GTX 1080 performance point. 332 on the leader board(out of all graphics card models on the list). So I'm fairly confident that being down 2 pins hasn't shorted me 75 watts. Otherwise I would have crashed, or wound up positioned with lower tiered cards.

Okay, so, I learned a lesson.

Firstly, I purchased an 825 Watt PSU, because I found that the Radeon Pro Duo - 32GB can draw upward of 350 watts, alone, and you should never push your power supply at constant, peak draw.

My findings:

I hooked up the new Radeon Pro Duo, and,  both surprisingly and unsurprisingly the PC would boot loop.

My setup was 6+6-pin, as opposed to 6+8 pin. My GTX 1080 single GPU card was happy running at max performance levels with the single 6-pin, but a dual GPU card evidently requires a full 6+8-pin and to do that I had to unplug my spare HDD that all my media is on and use a dual SATA power-to 8-pin adapter I ordered(option 1 in my former post). When I ordered this I didn't think of how the Precision only has 3 SATA Power cables. Two of them are normally in use by two HDD's, and the other would normally be in use by DVD drive, which I don't much use and so disconnected.

Once I plugged that full 8-pin in the coolers hummed up...something that wouldn't happen with the 6+6-pin arrangement. I was then able to get into Windows, install drivers, and run a benchmark. Turns out I outperformed other like model cards, scoring 10,313pts, from the average 9800 for the same card. The new problem, however, was the loss of my 2TB drive, at the cost of an additional SATA power. I could order a SATA power Y-splitter and be done, however, I recommend the following:

For single 8-pin required cards: Dual 6-pin to single 8-pin connector(below).

www.amazon.com/.../ref=sr_1_4

For 6+8-pin required card: The above, but also add a single SATA power-to-6-pin(below)

www.amazon.com/.../ref=sr_1_4

Or, again, you can just go to China Ebay and buy a 8-pin(from power board)-to-6+8 pin cable and have all requirements satisfied, for both types of cards.