If you include the failing hard drive. I had a ST3144A fail and howled loud that you can hear from next room.

Cheers,

IBM Ultrastar 9ES "Draco", I always called that one the "Typewriter" HDD as it makes a bunch of clickety-clacking (a la Seagate ST-251) when it spins up and initializes.

Seagate ST31220A. I have 2 of these and I would have loved to use one of them in a old dos PC because of the dual drive emulation mode. I'm sorry... I just couldn't.

Baoran wrote on 2020-11-26, 04:40:

Seagate ST31220A. I have 2 of these and I would have loved to use one of them in a old dos PC because of the dual drive emulation mode. I'm sorry... I just couldn't.

seagate.mp3

OWWWW, MY EARS!!! I understand why you didn't want them in a dos machine.....

Baoran wrote on 2020-11-26, 04:40:

Seagate ST31220A. I have 2 of these and I would have loved to use one of them in a old dos PC because of the dual drive emulation mode. I'm sorry... I just couldn't.

seagate.mp3

Wow that is intense how loud that is. It kinda sounds like pneumatic grinder.

Something in an old Mac Quadra. Sounds like a bulldozer starting up on a cold day.

My loudest is an HP C2490 2 GB SCSI drive followed by an IBM 18 GB SCSI Ultrastar.
Both drives make noise you immediately want to leave the room.
Both are still working fine, but you really do not want to operate any of these.

This is mine, jump to 1:00 if you want to skip right to the offending drive
https://youtu.be/Y_ztYj80HSY

When that video was made the last 3 HDD's were 18GB Seagate Cheetah ST318203LC so the drive before gives an idea how noisy it should be.
I'm not bothered by fan/HDD noise for the most part. but that drive is pushing my limits, that said I just used it to replace a failed drive in another build. I'm not sure how long it'll stay.

Damn that has quite the high pitch screech.

Currently on my desk is very noisy SCSI IBM DGVS09Y 9GB - it's a full height drive. I use this machine (BX chipset and P2-450) for testing different early AGP video cards - Voodoos, TNT, Kyro...

Seagate ST32550 series, for the true experience, increase volume untill it sounds like an angle grinder. Sitting just a few minutes near a PC with those hard drives idling cause serious ear ringing and headache.

WD 24300
https://youtu.be/8uVw2LmYHkw
Used it to see how does a 1.6GHz Pentium 4 handle itself today for web browsing using Debian.
Used it for a day and didn't have the willpower to touch it on since.