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tek

macrumors regular
Original poster
Aug 23, 2003
105
0
Hey there, I recently purchased an external USB2 hard disk enclosure and drive (second user).

It's a generic 2.5" case with an IBM logo on it (but these cases come with all sorts of logos - VAIO, IBM, CompUSA etc.) and a Myson Century CS8813 chip inside.

The disk is a Toshiba MK3017GAP 30gb disk.

The unit passes all tests in Techtool and Drive 10. Diskwarrior doesn't see the drive while in OS X, neither does Norton Disk Doctor. When booting from the Diskwarrior CD, i just get kernel panics during the boot process. DW boots fine on my iMac with USB1 however, but that would take forever to do a complete disk check.

My main problems i've had so far are:

- Freezeups while checking for bad blocks, fixed by writing zeros to the disk and repartitioning.

- Data copies TO the disk perfectly, no data loss (checked in windows)
- When reading any amount of data from the disk it will randomly 'freeze' with the busy light on - any copies etc. just stop, disk can't be unmounted etc. This brings the entire OS down eventually - first finder pinwheels then everything does. Changing volume, brightness etc. do nothing. Only way to recover is to do a hard reset.

This is on a powerbook G4 (rev b/12"/1Ghz).

After some googling, the best I could find was a german messageboard where someone had complained that the drive wouldn't mount (not formatted so OSX can see it) and would cause freezeups when starting disk utility to do so (i believe that was the app - my german is not too good)

The unit appears to work flawlessly in Windows XP on a PC, but the PC has usb1.1, so any real diagnostics are far too slow. I'll leave it doing tests in XP overnight.

Does anyone have any ideas on how I could fix this? I could get my USB1 iMac to boot OS9 to do some diag, but that would again have to be done overnight as it has USB1.
 
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