Question Nvidia 5060 LP not drawing power - external power supply - sff build

[zerikscythe]

Hey everyone. I've been playing around with an m720q & an m90q gen 3 The m90q is the current project and I'm trying to get the 5060 lp to run in the system.

I have tried various external power options and each results in the board getting into windows but running extremely jerky, or simply rebooting after a few minutes.

Things I've tried:
Ender 3 psu 350w 24v -> buck converter to 12v ~15a -> 8 pin adapter

Lenovo 135 & 230w chargers -> same buck converter -> 8 pin adapter

Pc PSU 400w (older and had to rewire the 12v wires to a new 8 pin adapter) (said up to 22a on the 12v supply)

Dedicated 12v psu that can push up to 50A to 8 pin adapter.

I verified the voltage with each attempt. The GPU should be receiving the expected 12v on the 3 12v pins and enough amps.

In Windows or Batocera the m90q seems to be the worse off. I was able to load FurMark once and the wattage displayed was very low, like 15 watts.
It should at least be pulling the 70 watts from the PCI-E slot

The m720q (older) will load Batocera and play some games but the performance is worse than the 3050 I had been using.


Maybe there is an issue with the pci 8x riser, maybe how it's handling everything. But the 3050 works fine so maybe not.
I did recently read somewhere that because the 2 power supplies are not on the same ground it could cause a back feeding issue?
I may try to tie both to the same ground when i next mess with it.

Maybe something in the m720q bios is somehow slightly better? Idk, I'm stuck.

For the pc I have the 230 & 300 watt bricks, both act the same.

System is smooth with the 3050 gpu & i5-12500 CPU. (non-T variant)

 

[Lutfij]

You might want to pass on the make and models of both the RTX3050 and the RTX5060 you're working with. Using these as references;
https://www.techpowerup.com/gpu-specs/asus-rtx-3050-lp-brk-oc-6-gb.b11693

GIGABYTE RTX 5060 OC Low Profile Specs

NVIDIA GB206, 2512 MHz, 3840 Cores, 120 TMUs, 48 ROPs, 8192 MB GDDR7, 1750 MHz, 128 bit

www.techpowerup.com

for the sake of discussion, both LP cards don't have the same TDP.

On another note, have you made sure you're on the latest BIOS version for your SFF platform?

 

[zerikscythe]

https://www.msi.com/Graphics-Card/GeForce-RTX-3050-LP-6G-OC

https://www.gigabyte.com/Graphics-Card/GV-N5060OC-8GL

I do know both have different TDP's, which is the whole reason i'm trying to supply the 5060 with the extra power it needs.

the 3050 doesn't need anything more than the pci-e slot for power: 70watts
The 5060 is rated for 145watts so it needs extra power, however these small form factor pc's do not have standard cables and as such i need to find a cleaver solution to the power issue.

For bios, no i haven't checked but as these PC were designed to only work with 12th gen CPUs and has a very narrow range of extra hardware i'm not sure anything will come of a bios update, but i'll check that just for due diligence.

https://www.lenovo.com/us/en/p/desk...V9TE0qN8oKsTkXYS2iaxWYIMhzvs6CFPEAsh1IpLAZs7U

 

[Lutfij]

The 5060 is rated for 145watts so it needs extra power, however these small form factor pc's do not have standard cables and as such i need to find a cleaver solution to the power issue.
This might be worth a read through;

https://www.reddit.com/r/sffpc/comments/1e8ar7g/lenovo_2l_gpu_backpack_mod/

GPU used is this;
https://www.palit.com/palit/vgapro.php?id=4868&lang=en&pn=NE6406TS19P1-1060F&tab=ga
or the non-OC version;
https://www.palit.com/palit/vgapro.php?id=4858&lang=en&pn=NE6406T019P1-1060F&tab=ga
but similar power draw as the RTX5060 you're working with.

 

[VizzieTheViz]

Does the m90q have any connectors for powering a sata device? I’ve seen adapter cables that convert sata power connectors to pci 8 pin.

Might be worth a look if there’s power for sata devices available.

 

[zerikscythe]

Does the m90q have any connectors for powering a sata device? I’ve seen adapter cables that convert sata power connectors to pci 8 pin.

Might be worth a look if there’s power for sata devices available.

I tried that too, but no luck. I found a sata to 8pin adapter. But this means my overall power draw from the cpu & gpu could get to 275 watts, not a issue now that I bought the 300 watt brick, but the power lines that are used for the sata connection is tiny. I'd probably burn something out trying to pull that power thru the tiny ribbon cable connection. I felt better not going that route anyway as I still want to use the sata connection for a hdd.

 

[Eximo]

I tried that too, but no luck. I found a sata to 8pin adapter. But this means my overall power draw from the cpu & gpu could get to 275 watts, not a issue now that I bought the 300 watt brick, but the power lines that are used for the sata connection is tiny. I'd probably burn something out trying to pull that power thru the tiny ribbon cable connection. I felt better not going that route anyway as I still want to use the sata connection for a hdd.

A good judgement. The quality of adapters is generally not that good and many do end up burning up when being used to power GPUs.

 

[zerikscythe]

More im looking arounds, im thinking it very well may be that the 2 power supplies have separate ground paths.

It's the same issue across 4 different supplies. So it's either a common problem with the power, or the cards at fault. I should put the card in a different pc to confirm it's working and may, but I really don't want to take my other machines apart.... ugh.

Im going to rewire the adapter when I get home to ground everything to the main psu. See if that cleans up the issue.

 

[VizzieTheViz]

A good judgement. The quality of adapters is generally not that good and many do end up burning up when being used to power GPUs.

Good to know. Didn’t want to cause the OP any problems, I’d just seen these around and thought it might be a viable solution.

 

[zerikscythe]

Well I'm back at square 1
Maybe I need a psu that powers the main board and gpu as a single unit if that exists or can be wired up.

I tried 2 different power supplies with the grounds tied together (apparently this helps with electrical noise/feedback and makes the ground common), but it didn't work.

I also tried installing a capacitor to help with voltage drops that may be occurring but didn't seem to make any difference.

When I do get into windows and run furmark, I see the card max out pulling ~42 watts, before the software crashes or the whole thing reboots. On idle it shows 11 watts.

With the 3050 I see 18-20watts on idle, but it will pull 70watts under full load and works fine.

 

[zerikscythe]

So interesting development in this crazy saga. I've been trying to install this in my m90q g3. well i have a slightly older m720q that has a 9th gen cpu vs the 90s 12th gen.

I believe the 720 is also 3rd gen pci-e vs gen 4 on the 90.

i installed everything on the 720 and BOOM runs just fine. Full FPS in games, seems stable in windows all that.

So i'm thinking the bios on the 90 or the adapter itself is not compatible with the 5060.

The 720s pcie riser adapter is not the same as the 90s so i cant swap them.

Any new suggestions with this information would be awesome.

Thanks!