this post was submitted on 05 Apr 2024
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Laptop battery recently died, and I'm planning a new PC build anyway, so I'm wondering: can I just remove the HDD from my laptop and connect it to the motherboard? Would I need any extra parts or hardware? I'm guessing no, but it's hard to research on my phone. Any guidance is appreciated :) thanks!

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[–] CheddahBiscuit 13 points 8 months ago (3 children)

Laptops use a 2.5 inch HDD, most desktop cases are designed to hold a 3.5 inch HDD. You may need a special bracket to hold the drive if the case you plan to use only has 3.5 inch bays.

Some modern cases do also include a 2.5 inch mounting spot due to SSDs using a 2.5 inch form factor.

[–] [email protected] 28 points 8 months ago (4 children)

You'd be surprised how many of us just have the drive dangling in there freely because fuck it.

[–] evidences 11 points 8 months ago (1 children)

With a spinning drive you really don't want to do that, head crashes are a real thing and will kill a drive. With an SSD fuck it just yeet the drive into the case.

[–] [email protected] 3 points 8 months ago

This is true. Spinning platter just dangling could end up getting fucked if it smacks against itself. Like tilting a 360 while running a game would scratch up the disc.

[–] berryjam 2 points 8 months ago* (last edited 8 months ago) (1 children)

Both these comments are super helpful ❤️ I might just let it dangle until I can copy off my data lol

[–] taiyang 3 points 8 months ago (1 children)

If you're just copying data, just make it external. The usb housing for those things are pretty cheap and can be useful in the future.

[–] berryjam 2 points 8 months ago

Oh that's a good idea, I'll look into it !

[–] [email protected] 2 points 8 months ago

I have 5 hard drives in my case which has room for three. And I've never had an issue.

[–] [email protected] 2 points 8 months ago

I did this in a very similar case to OP once. Worked without issues. 2.5" HDDs are so tiny and usually low RPM that it doesn't really matter that much. But there's also a bunch of cheap solutions you can use, like rubber bands or even just some foam to lay it on (did that with 3.5" HDDs).

[–] Psaldorn 4 points 8 months ago

Or double sided tape in a pinch

[–] [email protected] 3 points 8 months ago (1 children)

If you were really lazy, you could also just cover the bottom circuit board of the drive with some electrical tape and just balance it on the jungle of wires running throughout the case.

Not that I would have any experience doing that...

[–] [email protected] 1 points 8 months ago

You don't even need to do that. Unless you're pressing and rubbing the board against the chassis, any minor air gap and natural oxidation layer on each side is going to be more than enough for what's probably only 5 V tops.

[–] [email protected] 4 points 8 months ago (1 children)

You can, yes. You need a SATA cable which likely came with your mainboard and connect it to your PSU as well. I'd still recommend to buy a SSD and copy your OS & files over to that though because HDDs are pretty slow and laptops typically also use low RPM HDDs. Your case also likely won't have any 2.5" brackets to properly mount it so you may have to work out some cheap DIY solution, but if you read my other comment in theory you could have it just dangling too for a while.

[–] berryjam 1 points 8 months ago
[–] [email protected] 3 points 8 months ago (1 children)

You can 3d print a mount, if you have a (friend who has a) 3d printer, but most of my desktop cases from the last 10 years have at least one 2.5" bay.

[–] berryjam 1 points 8 months ago

The case I'm thinking of buying will probably do fine then - thanks!

[–] General_Shenanigans 2 points 8 months ago (1 children)

Keep in mind that although there won’t be a problem getting that drive to work with that motherboard, you will likely need to reinstall your OS. If it’s Windows, you will also need to worry about licensing and activation.

[–] berryjam 1 points 8 months ago (1 children)

Thanks for pointing that out! I'm not too worried, I figure I can configure the BIOS to boot from my hdd

[–] elbarto777 2 points 8 months ago (1 children)

That's not OP's point. The point is that you can't just move the hard drive from your laptop to your desktop and expect your old OS installation to just work.

[–] berryjam 1 points 8 months ago* (last edited 8 months ago) (1 children)

Oh, why not? Is it not similar to booting from a USB drive? The OS is Arch Linux and the drive is not encrypted.

[–] elbarto777 2 points 8 months ago* (last edited 8 months ago) (1 children)

Oh, I assumed too much. I thought you had Windows installed, so I don't know how similar Linux is in these circumstances.

I would assume that a local installation may have configuration that is unique to your laptop's hardware.

The OS may be smart enough to recognize that some things changed and adapt accordingly. But some old drivers and config settings may still unnecessarily linger around and waste disk space or CPU cycles. And hardware driver conflicts could also lead to system crashes.

Maybe I'm wrong, though?

[–] berryjam 2 points 8 months ago

Hmm, I do have some battery-specific configs, but they shouldn't make a difference, and they're trivial to deactivate.

The Linux kernel generally includes drivers for anything you could want, so I'm not concerned about crashes related to drivers.

Thanks for the concern anyway :)

[–] Vinny_93 -3 points 8 months ago (2 children)

Wait - people still use HDDs?

[–] [email protected] 5 points 8 months ago

I use rotational hard drives to store backups and to store video. Rotational drives aren't very good at fast random access, but I don't really need that for those tasks.

[–] sylver_dragon 3 points 8 months ago (1 children)

They're big and cheap. My "server" (desktop with delusions of grandeur) has an array of 3 2TB drives (Western Digital WD2003FZEX) running in a ZFS pool. I run Nextcloud and sync all my photos, videos and documents to it. I don't need high speed storage, just a lot of it. Back when I built it (maybe 8-9 years ago) those drives were a reasonable price for that much storage. If I were to re-build it again today, I'd still pick spinning rust over solid state drives. I can get 8TB drives for ~$180. For the same price, I'd get far less space on a solid state drive and the extra speed wouldn't be useful.

Buying the newest tech isn't always the right choice. You should pick parts which fit the use case.

[–] Vinny_93 1 points 8 months ago

I have a server with 40TB of HDD storage. But my home pc only has SSDs, preferably NVMe.