I'd like to install a 4TB HDD on my HP EliteDesk 800 G9. How can I check if it's compatible?

[Albaiter]

My PC has a 1TB HDD. Before upgrading to a 4TB HDD, how can I tell if it's compatible or if there's any hardware lock preventing the swap?

[Bill_To]

Greetings @Albaiter 

Welcome to the HP Forum.

I'm guessing the 1TB drive is a data drive. I would not do a 4 TB HDD if this is going to be the system drive.

You would be much better off doing a 2.5 inch SATA SSD or an M.2 NVME drive if you are upgrading the system drive and your MB natively supports M.2 drives.

I can't think of any reason why you could not upgrade the 1 TB HDD to a 4 TB HDD.

The full 4 TB disk should be accessible as one volume if you format the disk using GPT (if you're using Windows) and you are using a modern operating system.

Regards

[Albaiter]

Thank you for your answer. I'm looking to use M.2 512GB for booting, but I'm looking to replace my old HDD 1TB with HDD 4TB. But I'm worried that HP's "HP EliteDesk 800 G9" model has hardware lock applied and is not compatible.

[Bill_To · Accepted solution]

Greetings @Albaiter 

My pleasure.

I'm thinking HP would not do some type of disk capacity hardware lock.

HDD capacity limits are dictated by: the operating system, PC hardware, and PC firmware. W10 and W11 UEFI PCs using GPT can do 4 TB disks with ease. 

Windows UEFI system disks using GPT can have up to 128 partitions. Each partition can do up to 18 exabytes. Reference material used in this citation can be reviewed at this Microsoft Site.

Maybe a different Forum member can: confirm or allay your fears.

Regards