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USB power limit on MBP

Message #1 - Posted 2007/08/23 - Clive

I have a C2D 2.16 Macbook Pro. I currently have a Freecom 80gb USB bus powered drive as a backup (data only).

I'm looking for a larger usb bus powered drive to do a complete drive clone (160gb internal drive) - 250gb+

Co BOTH the usb ports on my Macbook provide a standard usb 2.0 1000ma?

Thanks

Clive

Clive

Life is not measured by the number of breaths we take..... but by the moments that take our breath away.

Message #2 - Posted 2007/08/23 - Jaimie Vandenbergh

On Thu, 23 Aug 2007 08:15:11 GMT, Clive wrote:

I have a C2D 2.16 Macbook Pro. I currently have a Freecom 80gb USB bus powered drive as a backup (data only).

I'm looking for a larger usb bus powered drive to do a complete drive clone (160gb internal drive) - 250gb+

You won't get it, unless you wait for a 2.5" 250gb+ drive. 3.5" drives are too power-hungry.

Co BOTH the usb ports on my Macbook provide a standard usb 2.0 1000ma?

Standard 500mA, but each will supply that. Total available is therefore 5W. 3.5" drives draw 12-20W on spinup, and 5-12W after.

Cheers - Jaimie

"Hard as nails, hard as nails - So would you be if you lived one hundred and eighty years on sunflower seeds and biscuit crumbs." - Polynesia

Message #3 - Posted 2007/08/23 - Jason N

Jaimie Vandenbergh wrote:

You won't get it, unless you wait for a 2.5" 250gb+ drive. 3.5" drives are too power-hungry.

Freecom have a 250GB 2.5 drive available. USB and FireWire.

Thinking of getting one myself. As well as my MacBook Pro I have an iBook Clamshell (the last 'Paris' version) and using the USB port is very painful as it is 1.1 only. It does have a FireWire 400 port though, but neither of my external drives have that option.

Jason.

Message #4 - Posted 2007/08/23 - Jaimie Vandenbergh

On Thu, 23 Aug 2007 17:54:25 +0100, Jason N wrote:

Jaimie Vandenbergh wrote:

You won't get it, unless you wait for a 2.5" 250gb+ drive. 3.5" drives are too power-hungry.

Freecom have a 250GB 2.5 drive available. USB and FireWire.

Fancy. I am behind the times!

J

"January 1, 2000 might well be the first day in over six years that is _not_ in September 1993..." - M Grant in afp

But unfortunately, he was later found to be wrong.

Message #5 - Posted 2007/08/23 - Steve Firth

Jaimie Vandenbergh wrote:

Freecom have a 250GB 2.5 drive available. USB and FireWire.

Fancy. I am behind the times!

It's also possible to roll one's own using a generic case and a 250Gb drive.

OTOH a 1TB USB/Firewire drive from Iomega can be had for about £180. Not that portable, but good value on the bang per buck.

Message #6 - Posted 2007/08/23 - Jaimie Vandenbergh

On Thu, 23 Aug 2007 18:42:57 +0100, %steve%@malloc.co.uk (Steve Firth) wrote:

Jaimie Vandenbergh wrote:

Freecom have a 250GB 2.5 drive available. USB and FireWire.

Fancy. I am behind the times!

It's also possible to roll one's own using a generic case and a 250Gb drive.

Tosh have a 320gig sata 2.5" drive, released today. Blimey - I only stopped paying attention for a minute!

OTOH a 1TB USB/Firewire drive from Iomega can be had for about £180. Not that portable, but good value on the bang per buck.

Good old Iomega. Never had a bit of kit from them that didn't pop before it was retired.

Cheers - Jaimie

Growing old is mandatory, growing up is optional.

Message #7 - Posted 2007/08/24 - ray

Jaimie Vandenbergh wrote:

On Thu, 23 Aug 2007 18:42:57 +0100, %steve%@malloc.co.uk (Steve Firth) wrote:

Jaimie Vandenbergh wrote:

Freecom have a 250GB 2.5 drive available. USB and FireWire.

Fancy. I am behind the times!

It's also possible to roll one's own using a generic case and a 250Gb drive.

Tosh have a 320gig sata 2.5" drive, released today. Blimey - I only stopped paying attention for a minute!

I just bought a Lacie Mobile 160gb with USB2 and Firewire 400 from Amazon. £72. Works a treat on the G4 Powerbook and iBook. It's about the size of the Palm Lifedrive but much lighter. Very nice.

OTOH a 1TB USB/Firewire drive from Iomega can be had for about £180. Not that portable, but good value on the bang per buck.

Good old Iomega. Never had a bit of kit from them that didn't pop before it was retired.

Cheers - Jaimie

to email me please go here
http://www.dream-weaver.com/email.html iChat AV datasmog7

Message #8 - Posted 2007/08/24 - Sak Wathanasin

Previously, Jaimie Vandenbergh wrote:

You won't get it, unless you wait for a 2.5" 250gb+ drive. 3.5" drives are too power-hungry.

I have a Western Digital 250 GB 2.5 in SATA drive in my Mini. Fujitsu do a 300 GB 2.5 in drive, but only 4200 RPM. I got mine from www.overclockers.co.uk.

--

Sak Wathanasin
Network Analysis Limited
http://www.network-analysis.ltd.uk

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