GPU Possible to use RTX A5000/A5500 mobile (P3/P360 Ultra) on desktop motherboards?

[bingsoo]

Hello. I'm wondering if it is possible to use the custom RTX A5000/A5500 MXM cards Lenovo makes for their P3/P360 Ultras on a regular motherboard (PCIe x16). If so, what additional parts are required?

Photos of what I believe to be the A5500: https://store.emprgroup.co.nz/p-566596-5v11j75446-video_card-qn20-e5-r-rigel-mxm-graphics.aspx
Photos of what I believe to be the A5000: https://store.emprgroup.co.nz/p-566582-5v11a08219-video_card-qn20-rigel-mxm-card.aspx

I believe there are two parts to getting them to work:
1. Connecting the mxm male to PCIe x16 female (the perpendicular angle of the mxm male connector to the card might be a problem)
2. Powering the GPU, which is served by 100mm MB to MXM power cable (FRU:5C10U58625) at least for the A5500 (is this a proprietary connector?)

 

[bingsoo]

Hello. I would like to revive this thread because my P360 Ultra mainboard actually died on me recently, so this is no longer a theoretical question... I'm thinking of re-using all the other components on a regular motherboard rather than replacing the P360 mainboard (which is crazy overpriced).

I'd like to figure out how to power the RTX A5000 MXM GPU using a standard ATX PSU. I'm new to electronics but I figured this would be a nice project to get me started!

I understand from this reddit thread that the power output of Lenovo's proprietary header is 20V. I'm therefore assuming that the RTX A5000 MXM card expects a 20V power supply. I also understand from the same thread that the standard ATX supplies power at 12V. What should I do in between?

If someone would be willing to instruct me and send me some links to product pages I would be very grateful!

 

[thewizzard1]

Figuring out that giant connector to adapt it will be a problem for sure, but the PWR connector looks pretty well labelled - +19 and GND
Most of these, as with *actual* MXM cards, can run AOK on 12V.

 

[AlexTSG]

I can't get to the links you've provided as the site has some kind of geo blocking, but if you can get your hands on one of these it might do the trick.

https://videocardz.com/newz/zotac-o...mpatible-rtx-mobile-graphics-price-up-to-4760

 

[bingsoo]

Figuring out that giant connector to adapt it will be a problem for sure, but the PWR connector looks pretty well labelled - +19 and GND
Most of these, as with *actual* MXM cards, can run AOK on 12V.

Thanks for responding and for your insights! May I know where you got those specifications? I zoomed in onto the images of the power connector but couldn't find anything.

 

[bingsoo]

I can't get to the links you've provided as the site has some kind of geo blocking, but if you can get your hands on one of these it might do the trick.

https://videocardz.com/newz/zotac-o...mpatible-rtx-mobile-graphics-price-up-to-4760

Thanks! I am not familiar with the connectors and only know these cards to be MXM by name. I understand that the GPU is made by Lenovo, so who knows what's proprietary.

Could you help me verify that it would work with the ZOTAC MXM adapter if I gave you some photos (see below)?

Additionally, if the GPU is typically powered using a 30-pin JST SHD connector, how would that work with the adapter?

 

[AlexTSG]

Thanks! I am not familiar with the connectors and only know these cards to be MXM by name. I understand that the GPU is made by Lenovo, so who knows what's proprietary.

Could you help me verify that it would work with the ZOTAC MXM adapter if I gave you some photos (see below)?

Additionally, if the GPU is typically powered using a 30-pin JST SHD connector, how would that work with the adapter?

Unfortunately, now I've seen the photos I'm sure the Zotac MXM adapter won't work. It's made for the regular MXM Type A modules which are 82x70mm and have a male connector. The adapter card powers those modules via regular PCIe power connectors.

This does look like something proprietary that Lenovo has put together for its own SFF workstations

You might be able to get a flexible riser to connect it to a regular motherboard, but I think getting power to it would be challenging.

 

[Nilithium]

Hello. I would like to revive this thread because my P360 Ultra mainboard actually died on me recently, so this is no longer a theoretical question... I'm thinking of re-using all the other components on a regular motherboard rather than replacing the P360 mainboard (which is crazy overpriced).

I'd like to figure out how to power the RTX A5000 MXM GPU using a standard ATX PSU. I'm new to electronics but I figured this would be a nice project to get me started!

I understand from this reddit thread that the power output of Lenovo's proprietary header is 20V. I'm therefore assuming that the RTX A5000 MXM card expects a 20V power supply. I also understand from the same thread that the standard ATX supplies power at 12V. What should I do in between?

If someone would be willing to instruct me and send me some links to product pages I would be very grateful!

Hi! I actually might have a solution for you: I'd be looking to buy your GPU off of you because I have a P360 Ultra that I wanted this GPU for. If you're interested, I have an RTX 4060, A2000 or another handful of LP cards I can offer with my purchase!