Need USB card with enough power for external hard drive
in [Laptops]
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From: mike on 24 May 2010 20:32 J G Miller wrote: > On Mon, 24 May 2010 10:51:12 -0700, Carl wrote: > >> Seagate 80GB > > So the maximum fastest transfer rate for that will be 100 MBytes per second, > will it not? > > Have you considered upgrading to something newer? ;) > > 500 Gbyte 2.5 inch Western Digital Caviar Blue SATA perhaps, > or Seagate equivalent? Magic usb and sata numbers notwithstanding... Have you EVER gotten anywhere near those numbers? Max I've seen is 24MB/sec SUSTAINED to a usb drive. But I've got slow computers, nothing faster than 2.8GHz processor.
From: BillW50 on 24 May 2010 21:08 On 5/24/2010 7:32 PM, mike wrote: > J G Miller wrote: >> On Mon, 24 May 2010 10:51:12 -0700, Carl wrote: >> >>> Seagate 80GB >> >> So the maximum fastest transfer rate for that will be 100 MBytes per >> second, >> will it not? >> >> Have you considered upgrading to something newer? ;) >> >> 500 Gbyte 2.5 inch Western Digital Caviar Blue SATA perhaps, >> or Seagate equivalent? > > Magic usb and sata numbers notwithstanding... > Have you EVER gotten anywhere near those numbers? > Max I've seen is 24MB/sec SUSTAINED to a usb drive. > But I've got slow computers, nothing faster than 2.8GHz processor. Nobody gets those magic numbers Mike. They only look good on paper. ;-) -- Bill Thunderbird Portable 3.0 (20091130)
From: Paul on 24 May 2010 21:44 Carl wrote: > > Thanks. That's good info. Maybe you know something about this- The > reason my drive is external is because my newer Thinkpad has a smaller > capacity hard drive than my older Thinkpad. (I upgraded the old one's > drive, and it's actually newer than the newer Thinkpad.) The drive > doesn't fit it the newer thinkpad - it's the same size, and the pins > line up, but there's this piece of plastic/metal just after the end of > the pins that keeps it from fitting. (I was thinking - Drimmel tool > - but I wouldn't dare.) My DVD-Burner from my older Thinkpad (also > an upgrade) won't fit either, it's too big. My newer Thinkpad just > has it's CD-Writer/DVD reader. There's a Thinkpad adapter that allows > you to plug in the DVD-Writer into the PCMCIA slot, but it's $60, and > too rare to find cheaper on E-Bay. I'd be interested in getting my > DVD-Burner connected to the new (working) laptop, if it was cheaper > than just buying a new burner. (It's called an UltraSlimBay Drive or > something like that - different stuff can go in the same slot.) > Do you have model numbers for the old and new Thinkpads ? I'd like to find a picture first, of what the adapter looks like, to offer a comment. I'm not a laptop repair guy. I've just seen the odd picture of laptop components. I know they use adapters for hard drives, even in cases where it doesn't make a lot of sense. That's probably what you're seeing, is an adapter that is removable. Paul
From: Lars on 25 May 2010 04:40 Previously, on Usenet Carl <carl33(a)mailinator.com> wrote: >> get a wall �wart with a usb socket in it designed to do exactly >> what you need. �You can get on at any computer store. > >I've never seen a wall plug transformer that a usb connection on one >end. I'm not saying they don't exist. > >What exactly is it called? I bought one in an electronics store to charge my Ipod with. Lars Stockholm
From: Tecknomage on 25 May 2010 12:01
To all on this thread... I cam in late but you have 3 choices on this subject: 1) An external USB HD with its own power adapter. 2) A USB HD *designed* to use USB2 power (note your system's USB port must be USB2, see your BIOS Setup) 3) A USB Adapter with its own power I can suggest you checkout offerings at Acomdata http://www.acomdata.com/app/stx.products.asp?cid=1 One example is their "2.5" Samurai USB/eSATA" which is "Bus Powered" (aka via your USB2 power). I have an older version which even includes "Nomad Mobile Desktop" OS that I use for temporary backups for clients. Also, if their newer external drives are like my old one, you can order and external AC Adapter if you wish. This would be an option required if the client system does NOT have USB2 support. Note, Seagate (I think) also carries and external USB HD that powers via your USB2 Port. -- ======== Tecknomage ======== Computer Systems Specialist IT Technician San Diego, CA |