my mac se is not detecting it's scsi hard drive

Jon,

Some of the SE series had bad Quantum 40 and 80MB hard drives. The problems are two fold: something called a "sticky actuator," and insufficiently lubricated bearings. I have a SE/30 with the latter problem.

Turning it on, I hear the fan kick in but cannot hear the HD spin up. It takes repeated attempts at start-up to get the drive moving (probably hard on the power supply). Once running, it will run for months (never tried longer than that).

My question to you is, can you hear the drive spin up? If so, then something else is going on.

A

Jon
Your hard drive may not be visble to the system because it does not spin up so that the contained data can be read, and 'seen' on the desktop after the 'volume' is mounted. It may not be visible because data cannot be read from it, even though it is spinning. Allan asked whether the drive spins up. Can you hear or feel the drive spin up?

My powerwave used to do this thing it kept saying HD wasn't mounted anyways. I have two running so I could still use it, I have no idea what it meant.

Hello.

I was searching some help on this, but found something out by myself.
I worked on a Mac SE/30 as a child, now my father gave it to me.

There is a 80 Mo Hard drive with it ; SCSI .

If you want to have the ard drivemount, you have to first start the hard drive, than the Mac. Start the Mac when you hear that the drive is starting, i think it's just a matter of timing... If you wait too long, it won't mount.

I played around a little, and found out that I could mount the drive as explained.

I hope it can help you out .

iMac G5 1,8 Ghz Mac OS X (10.4.3) 1024 RAM / Radeon 5200 64 VRAM / 80 Go

If the drive is late to spin up, as is sometimes the case, you can buy yourself more time by setting its ID to 1 instead of 0. Zero is checked very early on, and if no drive is ready at that ID, the addresses are checked in descending order, so 1 would be the last to be checked the second time.

Ask HD SC Setup or SCSI Probe or Mount Everything or other utility whether the drive is present at that address. If present, it should be willing to tell you its Make & model AND its size/capacity. Presuming that it does spin up, a drive of unknown manufacturer or zero size either has a cabling/termination problem or has died.