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Specifics on HP Pavillion x360 Model

HP Pavillion x360 M3-u001dx
Microsoft Windows 10 (64-bit)



Trying to do some upgrades to my x360, but can't seem to get a straight answer anywhere as to what is in this thing. HP doesn't even have this model on their website.


HP Pavillion x360 model "M3-u001dx" bought at best buy. Came with 6gb ram, 1 2gb and 1 4gb sticks, & a toshiba 500gb 2.5in HDD.


I want to upgrade the HDD first with an SSD, and found out the hard way after I opened it up it needs a thin 7mm HDD. I also saw some models have m.2 slots, and can't find out if this model does or not. if it suppots NVMe (I'd guess no) I'd prefer to go that route. Again, I can't find a straight answer.


I didn't see RAM slots when I had keyboard up, but wasn't looking for them. Are the bays under the motherboard? If so, are they infact, upgradable, and if so to what capacity? I ran the Crucial computer identifier and it told me it can take up to 16gb. Other plaes say RAM isn't upgradable.


There just isn't any concrete information about this specific model, maybe it's a special best buy thing that has a few differnt options. I have an asus laptop that was kind of the same.


If anyone can shed some light before I try to pull apart this thing again I'd really appreciate it.




Provost Provost
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Specifics on HP Pavillion x360 Model



I believe HP Pavilion x360 m3-uxxxdx models/products are the cheaper versions of the x360 series specially for Best Buy. Machines only have one option for storage call single configurations (single M.2 or single HDD/SSD).


Supports M.2 SATA
Supports optional SATA 2.5–in HDDs (7mm)

Single SSD configuration:
● M.2 SATA DRAM–less: 128 GB

Single HDD/SSHD configurations:
● 1 TB 5400–rpm, 7.2mm
● 500 GB 5400–rpm, 7mm SSHD with 8 GB NAND
● 500 GB 5400–rpm, 7.2mm


That means your model does not have M.2 slot for SSD. You can alsy use 2.5" SSD to replace the existing HDD.


I used to swap RAM and HDD within 5 to 10 mins but with new design this can take hours and very risky without right tools that whay all works are for  HP authorized service provider parts.


RAM slots are covered by a shield you can remove them but again very risky that why it actually says on-board. It supports


Support DDR4–2133 Dual Channel
Supports up to 16–GB maximum on–board system memory

DDR4–2133 Dual Channel Support

● 16384 MB (8192 MB × 2 pieces)

● 12288 MB (8192 MB + 4096 MB)

● 8192 MB (4096 MB × 2 pieces)

● 8192 MB (8192 MB × 1)

● 6144 MB (2048 MB + 4096 MB)

● 4096 MB (4096 MB × 1)




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LTY46 Honor Student
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Specifics on HP Pavillion x360 Model

Hi Provost,


Thanks for the response and confirming the ram is upgradable and the no m.2. I kind of knew it wouldn't have one, since as you said, it would likely be one or the other (especially since best buy models often are oddballs).


WIll pick up some RAM and a 7mm SSD and break this guy back apart and do some tinkering. Thanks for the info!

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