"Not Dave" <> wrote in message
news

...
> On Sun, 16 Oct 2005 12:47:57 +1300, "ws" <> growled
> these words from under a rock:
>
>>I'm currently using a New Motion 3.5" firewire HDD enclosure, but things
>>aren't going well with it. Quite often it will simply stop working while
>>in
>>the middle of an IO operation, disappear from device manager, and then
>>corrupt the FAT table on the drive.
>>
>>What HDD enclosures are you guys out there using? They can be firewire or
>>USB, but I'd like to buy just a bare enclosure, as I already have a
>>suitable
>>3.5" 250GB 8MB HDD.
>>
>>Any recommendations appreciated.
>>
>>Thanks!
>>
> Is it a seagate drive?
>
> Some models of the 200GB+ Seagate drives have a higher power
> requirement than most other drives, and will not work in most
> enclosures.
>
> I'm not sure which models, but it seems to be the latest ones.
Had a look at the power requirements for Barracuda 7200.x drives (160 -
500GB)
Maximum current draw (12v, 5v n/a) 2.6 to 2.8 amps = 31 to 34 watts. (this
will be start up current no doubt)
Power management: Seek typical =8.1 to 12.5 watts (0.67 to 1.05 amps)
Idle typical = 6.9 to 7.5 watts (0.57 to
0.62 amps)
By comparison Maxtor DiamondMax_plus 9 (60 to 250GB 7200RPM) have a typical
Seek power usage of 12.34 watts.
They don't have the max power draw on the product pdf's.
FWIW
Paul.