[Solved] Huawei Matebook X Pro - 2 PCIe Lanes for Thunderbolt 3 Port
I just joined the forum because I'm searching a replacement for my notebook + desktop setup.
Whilst I found almost anything in regard to a Dell XPS that I have my eyes on, I found nothing about the new Huawei Matebook X Pro.
(The one with the funky webcam in a keyboard button)
Has anyone ever had this device in his hands to test, if the Thunderbolt connection is PCIEx4 or x2?
Huawei only mentions, that it supports eGPU up to a GTX1080 but that's not very usefull info.
The device would be right up my sleeve, since I'm searching for a Ultrabook which I can connect to an eGPU with my ASUS 21:9 monitor.
I also looked into the Razer Blade Stealth but they don't sell those in Switzerland 🙄
Thanks for your answers
It's almost certainly an x2 in the discrete configuration (core 8*50U chip + MX150 => x2). There is a chance it's a x4 in the non-discrete variant, but they don't have a separate spec page (the giveaway would be if that variant is also USB-C + TB3, or TB3 + TB3 - like the difference between the 13" and the 15" Spectre x360).
2017 HP Spectre x360 15 i7-8550U GTX150 + [email protected] (HP Omen Accelerator) + Oculus Rift + Win10 [no guide]
HP Omen Accelerator Thunderbolt 3 enclosure legs stand removal walkthrough
Employed by HP, but my posts and opinions expressed on this forum are my own.
Notebookcheck's review of the laptop (which included the MX150) states it's a 4-lane implementation, but I know thats not conclusive.
@usafballer I read notebookcheck's review of this laptop (i5-8250U, MX150) and while they listed full 4 lanes TB3 as a pros I did not find any factual screen captures or performance tests. The NVMe results indicate there are 4 lanes to the M.2 slot. The MX150 dGPU needs 4 lanes. I highly doubt the Thunderbolt 3 controller gets the remaining 4 lanes. Like @4chip4 said, it's most likely a x2 PCIe connection with one Thunderbolt 3 port.
I agree with you @theitsage - it's likely 2 lanes, which is a bummer. I am contacting support to ask - first response they said "yes it features 2 USB-C ports". Waiting on one more follow up. Still one hell of a great laptop deal with a unique screen ratio for under 1200 bucks. And 2 lanes is still fine if you are outputting to external monitor only with only a minor loss in performance.
I am currently in contact with Huawei themselfs as I am too getting contradicting statements about this, I will keep you posted once I find something out,
I got a question myself thou, I saw today a report of someone hinting to issues in setting up a system with an eGPU and the MateBook Xpro, does anyone know why that should be? Is anyone of you running this setup or anything similar with a matebook?
@usafballer were you able to confirm this for certain? As seemingly the customer support has no idea and is just giving the next best answer, I am by now taling to the engineering team.
The single Thunderbolt 3 port is attached to a 2-lane PCI Express Root [Port #9]. Confirmed here by u/Shirokiya on reddit. We can see the dGPU uses 4 lanes [Port #1], NVMe drive uses 4 lanes [Port #5], and my guess is the wireless card uses at least 1 lane [Port #11].
Hey just wondering if disabbling the dedicated gpu would free up that some lanes.
Also I really like the Huawei Matebook x pro, but the way I want to set it up, using the Aorus 1070 gaming box as a docking station with a keyboard, monitor, and usb hub attached directly to the box, makes me nervous. I'm afraid that the keyboard and hub will take up too much of that valuble 2 lanes to be worthwhile. So I'd really like some guidance! Thanks so much!