Help with how to tell if my laptop supports PCIe without opening it up

katanaqui

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Feb 11, 2018
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Tl;dr: Here's a lot of info, any help learning to interpret it would be appreciated please!

And one stupid question: the SSD is not 'removable'. This is basically saying it's not a pen drive right? As opposed to being non-replaceable.


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I have a new laptop (details below) and I want to replace the 256GB SSD with a 1TB one, preferably NVMe. I'm pretty sure it has an M.2 SSD in it at the moment, and an additional empty 2.5" slot. I'm already aware of what will and will not be quicker with a PCIe NVMe drive over a SATA one.

I need to figure out if my laptop supports a PCIe interface*. Asus support have been useless, as has the supplier who quoted a lot of incorrect specs at me. I'd rather not open my laptop up more times than necessary, or replace the existing M.2 if I'm going to get stuck at SATAIII speeds and I might as well have gone for a 2.5".

Between wmic in cmd, Intel and SiSantra, I've found some info out, but this mostly just seems to read what the current SSD is and what the 2.5" slot is capable of. I found some info on the mobo system buses I think, but then this part is still new to me. I don't quite get how lane allocation works, if installing an NVMe will work at PCIe speeds in this case, what version/speed it will be limited too, and if I'll be diverting lanes away from another device in the process.

I think bus 0 is allocated to the CPU, and bus 1 would be for the NVMe drive?

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Laptop: Asus Zenbook 13" UX310UA-FC998R
(Beware half of the available online specs don't seem to match what I actually have)

SSD
SSD model: Micron 1100 MTFDDAV256TBN
Capacity: 256GB
Form factor: M.2 (the AV part of the model number indicates this apparently)
SiSantra max SATA mode: G3/SATA600
SiSantra current SATA mode: G3/SATA600

Disk Controller
Model: Asus Sunrise Point-SATA Controller (AHCI mode)
OEM device name: Intel Sunrise Point-SATA Controller (AHCI mode)
Revision: C2
Spec: 1.10
Max SATA mode: G3/SATA600
Channels: 1

Disk Controller
Model: Asus Sunrise Point-LP PMC
OEM device name: Intel Sunrise Point-LP PMC
Revision: C2

Processor
CPU: Intel i7-8550U
PCIe revision: 3.0
PCIe configurations: 1x4, 2x1 and 1x2, 4x1
Max no. of PCIe lane: 12

Mainboard
Mobo model: UX310UAR
Asset no: ATN12345678901234567

Computer buses
Interface version: 2.30
PCI buses: 3
PCIe buses: 2

System bus 0
Type: PCI
Multiplier: 1x

System bus 1
Type: PCIe 3.0 x4 2.5Gbps
Multiplier: 3x
Bridge: Intel Sunrise Point-LP PCIe Root Port #1

System bus 2
Type: PCIe 3.0 x1 2.5Gbps
Multiplier: 3x
Bridge: Intel Sunrise Point-LP PCIe Root Port #8
Device connected: Intel Wireless 8265/8275
 
The drive in the system is a SATA 3 drive, since an PCIe drive will not work in a SATA 3 slot and vice versa, safe to say the M.2 slot is SATA 3. Unless someone on here happens to have your model and has replaced the disk, your best option to find out if an nvme drive will work in the system is ASUS support or the technical docs where they list compatible parts for the system.
 

katanaqui

Prominent
Feb 11, 2018
6
0
510
Hi thanks for your reply.

As I understood it, an M.2 slot could support both PCIe and SATA, for example if it was M-keyed?

As I mentioned, Asus support have been unable to help. There doesn't appear to be documentation available for the motherboard either.
 


It "could", if yours does you need to find out from the vendor unless you can find some different drives to test out. It is not so much the fitting of the card, but the interface to the motherboard and controller that is the issue.