Extrnal USB HDD help needed

[brookied]

hi all,
ok i have a philips 250Gb usb external HDD, bought new and formatted , set up on my imac, when using on the Imac on boot up the disk mounts fine. however after a few mins it deactivates and sleeps, this is a problem as it hangs when i try to get information from it.

when on the windows XP machine the HDD remains on all the time.

Is there a control panel or something i can do so that the thing will only power off when i set the mac to sleep?

cheers
Darren

 

[2nyRiggz]

The drive dismounts itself?
What is the drive formatted under?
Have you tried running disk repair under disk utility?



Bless

 

[emptyCup]

Have you tried System Preferences > Energy Saver > uncheck "Put drive to sleep whenever possible"?

 

[brookied]

Have you tried System Preferences > Energy Saver > uncheck "Put drive to sleep whenever possible"?

Now that is what i am looking for, fair play young man🙂

Drive is formatted to FAT32, icons remain on desktop but just do not respond

 

[brookied]

Now that is what i am looking for, fair play young man🙂

Drive is formatted to FAT32, icons remain on desktop but just do not respond

OK still not working. External Hdd powers off after 15 mins or so? any ideas