Power supply options for the t5810

Please let me know if you have found a resolution as of now? We are having so much trouble trying to power a rtx 8000 on a T7810 with a 825 power supply with only an eight pin vga port on the power expansion board even though we have split it into a dual six back to an 8 pin connector to the gpu along with powering the six pin with a sata to six pin. 

Its not 1100W its   DELL 1300W Power Supply

@DELL-Chris M   might have more information.

PN: MF4N5 H3HY3 V5K16 6MKJ9 T31JM

https://www.amazon.com/1300W-Power-Supply-Precision-Workstation/dp/B0777QSTC2

MF4N5 H3HY3 V5K16 6MKJ9 T31JM

There is a drop in 825W replacement for the Power supply and specific proprietary cable that goes to the power supply board.

There is also a 3rd party cable

YMMV

https://www.amazon.com/COMeap-Power-Adapter-Cable-13-inch/dp/B07HCYDK5K/

Dell is dual 6 pin not dual 8 pin. D92C9

https://www.amazon.com/POWER-SUPPLY-PRECISION-T5600-T5610/dp/B01N3VG801

https://www.amazon.com/COMeap-Power-Adapter-Cable-13-inch/dp/B07HCYDK5K/

Precision 5810 power supply part numbers:

YFY1V - 425W PSU

VDY4N - 685W PSU

RHHKV - 825W PSU

Power supply extended card part number is M6NP2:

It goes here ( this is a picture with the power supply removed

splitter cable part number D92C9:

https://www.amazon.com/COMeap-Power-Adapter-Cable-13-inch/dp/B07HCYDK5K/

For this model, there were two 1300W PSU =
V5K16 Delta EPA (Precision T7910/T5810)
0T6R7 Delta EPA (Precision T7910/T5810)

MF4N5 Delta EPA (Precision T7610/R7610)

Did you ever get this working? I'm attempting to do something similar but having an impossible time doing so. My PC is constantly crashing under load, despite a new power supply (825W FT7T6), new CPU, new RAM, and fully tested GPU. At this point the only explanation I have is that the multi rail psu design is causing it, and I need to just replace my mobo with an x99 or something and just scrap this whole idea already. I cannot figure this out for the life of me.

Funnily enough, i'm doing the exact same thing as the Original Poster. Been running a Dell precision 5810 (685W PSU)  with 4x16gig, a 10gig ethernet card, and an NVMe to PCIe adapter as boot drive. Graphics card was the original Nvidia Quadro M4000-8G. so last year in September i got on the pre-order list for an RTX3080. it didn't arrive until February. but whatever. i have something solid to run on this box.

So the stock config for the PCIe aux power is 2x6pin. first i tried a pair of 6-to-8 pin adapters. no dice. wouldn't get past bios post. then reading up on it, there is an AUX CPU power on the PSU distribution board. so got a pair of cables off of ebay, one that has 2x8pin aux off of the original PCIe aux power port on the distribution board, and a 2x8pin aux off of this other AUX CPU power port. so i ran one 8pin power from each pair - each 8pin port on the GFX card getting it's "own" supply.

this seemed to work fine for a few months, but i never really turned my machine off ever, then a windows update caused a reboot, and it either couldn't get through bios post - or the machine spins up, boots, but the screens are dead. it's exactly the same as when i tried to boot the machine with a PSU feed that wouldn't support the card.

so i figure its a power issue. and further reading leads me to believe that the 825W PSU has a different distribution board? but i'm not 100% on that...

right now as it stands, having retired my Quadro M4000-8G to my old precision T3610, i'm reduced to a pair of quadro NVS310's to drive my three screens till i can get this sorted out. either i find an 825W psu and it works as a straight swap, or i figure out some external GPU PSU heath-robinson affair.

however, when it was running, it was unburstable. furmark left for a day or so untill boredom set in or i wanted to do something else. GPU-Z reporting anywhere from 320Watts to 340Watts GPU power draw. hours of cyberpunk2077... i figure i've crossed a line somewhere and something is just saying "no" right now...

ok, so a note to not checking your work...

the 8pin plugs that i have feeding my graphics card are split 6+2 pin things, where the 2pin "clips on" to the side of the 6pin plug, making it an 8 pin unit that plugs into the graphics card. i hadn't clipped the 2pin bit onto the 6pin plug of both plugs properly, so they weren't sitting in the power socket on the graphics card properly. the machine would fire up, just no display.

after checking all my connections, and that one 8pin power feed was coming from the PCIe power socket on the PSU's distibution board, and the other 8pin feed was coming from the AUX CPU power socket, and that the full 8pins were seated in the graphics card, my machine boots just fine.

so i'm running a Xeon E5-1650v4, 64gig ECC ram, a 10gig ethernet card, a PCIe to NVMe adapter with a 1TB SSD, and lastly an RTX3080. all hanging off a 685W PSU. everythings ticking along just fine so far...

ok, so, longer term living with this setup. gaming with this machine on the 685W PSU, with a 3080 being fed one 8 pin PCIe power from the AUX CPU power socket, and the other 8pin PCIe power fed from the normal PCIe feed off the PSU. this works. and is seemingly fine. HOWEVER.

the machine will crash from every few days, to maybe get a week, maybe two weeks of 24/7 running. this is not mining machine. i just leave it on all the time as this is my work from home daily driver.

turns out there is a thing called "transient load" with GPU's where they can pull up to twice their rated power requirements.  this was ok with 10 and ok-ish with 20 series cards. but my 3080 could pull up to 700Watts for a "blip". i can't pinpoint if this is the issue, but i'm hunting for a PSU swap that could give me some headroom to cope if this is the case. the 5810 doesn't turn off completely, just freezes, then hard resets. i hope that's the "server" nature of it's PSU at least not letting the machine fall flat on it's face.

Have you replaced the PSU with an 825 or 1300 watt unit yet? Looks like at least some if not all of the Model D1300EF-02 1300w units originally installed in the 7910s would work

DP/N: V5K16 (Delta), T31JM (Chicony) T6R7 (Delta) were all used in the 7910s, appear to physically fit in the 5810 and attach to the same power distribution board with the aux CPU plug. They're expensive for 6-8 year old power supplies ($100 or so).  The 825w units are more reasonable ($60-75) but might not do the job, especially if the issue is "transient load" related.  I have my doubts though - seems like your unit worked fine till it didn't - and the transient loads should have been there all of the time.  I've been running the M4000 (6+6 pin) off the AUX CPU port just to see if it works.  So far, no difficulties but I haven't really put it to the test.

I've been wondering if I'll need to replace my 685w units with something better for future graphics cards.  BTW, if you need more than 6 cores, the 22-core e5-2696 v4s work great in these machines (updated A34 bios needed) and are fairly cheap.  They'll only turbo 1-2 cores at 3.7 GHz but you might not notice the drop from the 4 GHz the 1650's will run at.

Your comment about the cpu upgrade with the A34 bios was very useful thank you. I can confirm the e5-2696 v4 22 core works T5810. The extra cores will be good when I retire it to the garage for esxi or proxmox.

I'm upgrading the graphics card to a RTX 2060 (TDP 185w?) using the 8 pin off the pcie supply from a 685W D01T006.

Hi guys, has anyone ever been able to upgrade their PSU's from 685w to a higher one? I am currently going to be installing a 2080ti founders edition for a customer but I am not sure if the 685w will sustain in the long term since it'll be on 24/7. Any advice or tips would be greatly appreciated.

You can upgrade it to a 825w, part number FT7T6.

The customer actually ordered the 1300w PSU already. Would I need to replace the psu board as well?

Here is the only "true" solution I've found: https://www.reddit.com/r/homelab/comments/11eug9v/interest_check_dell_t58107810_power_distribution/

thanks for that reddit link. definitely food for thought there, though the guy does say, if you're running a card that "only" needs two 8pin pcie power lines, you should be able to run it off the normal 5810 power board - one from the 8pin that gets split to dual 6pins normaly, but this time with a cable that gives you eight pins, and another cable pulling power from the 10pin 2nd CPU power socket.

i've been running a 3080 10gig card like this for a year at least by now. this is on the 685watt psu.

note, with windows10 i would get a crash every day or two - leading me to suspect PSU issues, but with windows11 it's been solid as a rock. go figure. furmark is solid, gpu-z reports 350W power used by the graphics card, and 3dmark is solid. this is with an E5-1650v4 CPU, and running 128gig ram (8x16gig).

now. due to various life events, i have had a 3080ti land on my lap. 1st world issues blah blah blah. but it would crash after a little bit of time doing anything 3D. it'd run long enough for you to go... "oh this is fine", and then "oh no it's not" as it would crash back to desktop. i'm sure the card is fine as it ran in another machine perfectly before it came to me. there is no artificing on the screen to indicate memory issues, nothing that indicates problems otherwise beyond the worry of trying to run this card on a 685W psu. 

so i bought an ebay 1300W PSU. an H1300EF-02 - T31JW. slots in the machine fine, but power light cycles two blinks, short pause then two blinks long pause. it's never simple is it. 

have i bought the wrong PSU (shipped from china no returns) or do i need another different distribution board? or something else i've simply overlooked? 

many thanks for your time

@paper plane​ Hi, I am about to receive RTX 3060 which is running by 8pin, but in my Dell T5810 I have 685W with 8 to 6+6 pin (currently I am using Quadro M4000).

Can you advise me on what cable 8 to 8 pin I should buy? I will really appreciate any eBay or something links.

Thanks!