[SOLVED] PCIe to MXM

shottyjotty

Distinguished
Mar 12, 2013
185
5
18,685
I just had some thoughts I was hoping someone with a bit more knowledge could help. I have a few old laptops I'm playing around with, modifying and learning etc.

I see that you can buy a PCIe or mPCIe to MXM adapters to run an MXM graphics chip inside a desktop. I have a laptop that has a spare mPCIe slot, and a surprising amount of free space due to being built with no ODD.

Is it possible, at all, to use a mPCIE riser (assuming you can make adequate cooling) to mount and MXM GPU inside the free space? As I see you can hook up a desktop graphics card this way.

Crazy idea for sure. Any thoughts? Obviously you'd be running at max 4x speed, so some performance loss in any external GPU set up would be expected.

https://www.aliexpress.com/i/32952012735.html

These kinda adapters are the ones I'm talking about.

I'm guessing it's not a possibility due to no one attempting it, but thanks for any help anyway.
 
Solution
Probably not. Where would the GPU get power?

If I understand what you are wanting to do, use a 'standard' M.2 to PCIe adapter, plus the PCIe to MXM adapter to sneak a GPU into a laptop that doesn't have one. As long as the adapters work, it should function. However, when people do this for external GPUs those GPUs have power run to them externally.

You would somehow have to find a way to run a GPU through a slot intended for a storage device or other light expansion card. Or figure out where to steal power from.

Going to be expensive to try. Might as well just buy a used working laptop with GPU.
Probably not. Where would the GPU get power?

If I understand what you are wanting to do, use a 'standard' M.2 to PCIe adapter, plus the PCIe to MXM adapter to sneak a GPU into a laptop that doesn't have one. As long as the adapters work, it should function. However, when people do this for external GPUs those GPUs have power run to them externally.

You would somehow have to find a way to run a GPU through a slot intended for a storage device or other light expansion card. Or figure out where to steal power from.

Going to be expensive to try. Might as well just buy a used working laptop with GPU.
 
Solution
I would have assumed the low power GPU's were powered through the PCI connection. Otherwise there wouldn't really be anyway to hook it up to power as far as I know.

If it hooked up by mPCIe, it would easily go into the wifi card mPCIe slot, which is not intended for storage (i think)

Yeah you're right, it would be cheaper to buy a laptop with a good GPU, but I love modding the **** out of stuff. I spend lots on it and I enjoy it, so I'm always looking for new things to do. I'm just trying to see if it's theoretically possible.

Next mod I'm looking at is using an old LCD to to make a casemod akin to Snowblind cases.