Portable handheld powered by a latte panda and gpu, if it works...

[675409]

Hello, I'm new here. I am wanting to make a nintendo switch-like handheld. There's just one thing stumping me.

With a lattepanda i can use the m.2 m key to adapt it to a pcie, then from pcie to mxm (im using a mxm 970m which is overkill for a lattepanda)

but, the connectors for the m.2 to pcie always imply that the pcie needs supplementary 4 pin to get power. I know you can carry a psu arround, but that wouldn't be very portable. Is there any way to rig it up so I don't need a psu to power the gpu?  Btw, i don't know if the power is needed or just there if so. If it doesn't need supplementary power than i can just keep going. But if not, can i adapt 4 pin to usb and get the power that way? 

 

[DANK_AS_gay]

4 minutes ago, 675409 said:

Hello, I'm new here. I am wanting to make a nintendo switch-like handheld. There's just one thing stumping me.

With a lattepanda i can use the m.2 m key to adapt it to a pcie, then from pcie to mxm (im using a mxm 970m which is overkill for a lattepanda)

but, the connectors for the m.2 to pcie always imply that the pcie needs supplementary 4 pin to get power. I know you can carry a psu arround, but that wouldn't be very portable. Is there any way to rig it up so I don't need a psu to power the gpu?  Btw, i don't know if the power is needed or just there if so. If it doesn't need supplementary power than i can just keep going. But if not, can i adapt 4 pin to usb and get the power that way? 

 

 

 

 

I forget the exact pinout, but a new line of thought could be: What laptop power supply can I use to power the eGPU? I personally don't know enough electrical engineering to answer the question, but that might help

[adarw]

just get a steamdeck...

[675409]

Do you mean powerbrick? because i want to be able to run it off a batterypack and carry it around

[675409]

do you know how much power m.2 can provide? because if it is more than the gpu tdp it should be fine

[whispous]

Hint for you, you need to quote a previous poster if you want them to be notified that you have replied to them.

[Kilrah]

PCIe needs 12V which m.2 doesn't supply, and a GPU will need a lot more power than is available from an m.2 slot.

 

So you need to sort yourself out a power supply that can supply 12V and 5V at high power to that 4-pin connector along with power for the lattepanda.

 

Also that riser is only PCIe x1.

[675409]

it's ok that the slot is only x1, the mxm adapter is only x1 anyway.