external pci-express to usb 3.0 gpu
hello guys, this last few day i've been thinking can i connect an gpu to a laptop using external pci express that connect to usb 3.0, my laptop is toshiba satellite c55t-c and my gpu is amd radeon r7 240 oc edition, any tips or help will be appreciated
< >
Сообщения 112 из 12
You could probably get an external GPU if you wanted to. Not sure if your laptop supports one....but it is something worth researching.
Get a mini PCI-e to PCI-e adapter instead. You can connect your GPU via the mini PCI-e port which is used by your Wifi card.

USB 3.0 will bottleneck the crap out of your GPU.

Автор сообщения: The Spoopy Kitteh
You could probably get an external GPU if you wanted to. Not sure if your laptop supports one....but it is something worth researching.
External GPU = a normal desktop GPU
Отредактировано Omega; 22 фев. 2018 г. в 2:13
how do i use my internal pci e i need the wifi card for my laptop to work properly

Автор сообщения: S3PTIC
how do i use my internal pci e i need the wifi card for my laptop to work properly
Use a cable to connect to the internet while using your external GPU.

Also you will need a PSU to power the GPU.
Отредактировано Omega; 22 фев. 2018 г. в 2:15
You will not get what you are seeking with your current hardware...

External GPU enclosures are a new thing on the market, in terms of true consumer grade options.

Though they can in theory be used with *almost* any laptop, yours included, they are able to do this by bridging into the PCI-e bus. Generaly almost all laptops have at least one mini-pcie slot that is used by the OEM for a wifi add-in card. Because of this, you can remove the card, and repurpose the bus with anything that is PCIe compatible. This includes external GPU's, which would get an actual PCIe connection just as if it were inside the machine (though normally limited to x1,x2, or x4 speeds).

The downside is that it basically makes your laptop a desktop, as you will have a non-removable cord that runs out of the chasis of the laptop and snakes to the GPU. This noramlly requires removing the batter, and obvisouly no Wifi as you pulled it to install the tail that your laptop now has connecting it to the GPU on the desk.


To get what you want (basically a dockable GPU for gaming at home that you can pop the machine off of and take mobile without the GPU) you will have to invest into a purpose built machine. There are a few gaming laptops that are designed specifically for use with external enclosures. These feature one of (or multiple of) the following interface options:

A second externally acceable Mini-PCIe (rare)
A Thunderbolt Port (most common option, looks like USB 3.1c, but much faster)
A PCMCIA Express Card slot (older depreciated tech, but still an option, comparable to PCIe 1.0 x1 or standard gen PCI).

Using any of those interphaces you could get what you want.

Now days, best bet is to seek out a laptop with a fully enabled thunderbolt port.
1. You get what you paid for, now you're stuck with the laptop that you can't upgrade the CPU/GPU on it.

2. Using the external GPU are a bad idea, due to the fact you can lose performance use out of the hardware, and the fact you need thunderbolt 3 USB type C port.

3. You should of opt for a desktop over a laptop, for these reasons, mainly because you have an option to upgrade, and it's cheaper than gaming laptops, by trying to turn a laptop into gaming laptop, would of cost close to just building a desktop.
Отредактировано Dr.Shadowds 🐉; 22 фев. 2018 г. в 6:53
It's also a waste of time on Laptops that do not have a decent CPU, making dedicated GPU pointless to add. If the Laptop doesn't have Intel-i7 or Ryzen-7, you're pretty much wasting your time and should have just gotten a better laptop. You also need ThunderBolt-3; you can't really do external GPU any other ways currently.

Instead of attempting to do this on approx $800 or lesser Laptop, simply sell the current Laptop and go buy a newer on that actually has a decent and modern CPU, coupled with an NVIDIA GTX 10xx series GPU inside.
Отредактировано Bad 💀 Motha; 22 фев. 2018 г. в 7:01
Автор сообщения: Cloud Boy
External GPU setup is extremely easy.
1. Just Buy an External GPU dock (like the one shown below).
2. Connect it Via ThunderBolt-3 port.
3. Start Playing games.

But Your Current Laptop Toshiba satellite c55t-c don't have a ThunderBolt-3 port, and its CPU Pentium N3700 is a 6 Watt TDP Low end mobile CPU, and has only 4 GB RAM.
an External GPU is NOT a good idea in my opinion.

https://www.youtube.com/watch?v=EUg7YyXflhE
mine actually have core i3 4005u and 6 gb of ram
Still a bottleneck to a 1050...

Might pair nicely with a 1030...
Автор сообщения: xSOSxHawkens
Still a bottleneck to a 1050...

Might pair nicely with a 1030...
The USB or mini PCI-e will bottleneck the GPU more then the CPU will.
Meh.. Assuming its pcie 3.0, even if he is using an x1 slot its the samw bandwidth as x4 @1.0. That just might be enough for a 1030...

Maybe.
Автор сообщения: S3PTIC
mine actually have core i3 4005u and 6 gb of ram

It's too low end for CPU and RAM to even properly use a Dedicated GPU.
Instead of wasting money on something that won't work properly, sell the Laptop and buy a better one. If it doesn't already have i7 class of CPU and 8-16GB of RAM, forget it, not worth it. Now one might be like "How do you have an i7 and not have a decent GPU in the laptop already" well many are like this, Ultrabooks for example is a prime example.

Overall, if the Laptop lacks ThunderBolt3, then you basically can't even add an external GPU anyways.

Mini-PCIE will not work, those are X1 or X4 PCIE speeds and only used for things like mSATA or WiFi cards
Отредактировано Bad 💀 Motha; 23 фев. 2018 г. в 22:21
< >
Сообщения 112 из 12
Показывать на странице: 1530 50

Дата создания: 22 фев. 2018 г. в 1:54
Сообщений: 12