Date: Fri, 19 Mar 2004 08:02:03 +0000 From: "GEORGES PITROPAKIS" <[EMAIL PROTECTED]> Subject: RE: [LIB] USB powered external HD
I have no experience with an external HD but lately I tried to use a mouse + a GPS receiver.
While I had no problem powering the devices through an USB1 pc-card , it did not work with an USB 2 card withouth external power. Of course I tested the same configuration with another card to make sure that the card itself was not faulty. The only way for me was to come back to USB1...
Regards George
From: "Wouter Smith" <[EMAIL PROTECTED]> Reply-To: Libretto <[EMAIL PROTECTED]> To: Libretto <[EMAIL PROTECTED]> Subject: [LIB] USB powered external HD Date: Thu, 18 Mar 2004 23:47:05 -0800
Date: Fri, 19 Mar 2004 08:46:19 +0100 (CET) From: "Wouter Smith" <[EMAIL PROTECTED]> Subject: USB powered external HD
Hello all,
(I'm re-re-sending this again today as my previous posts from 3 and 1 days ago did somehow not appear on the list)
I am looking for an external 2.5" USB harddisk. I want it to be fully bus-powered, do not want to use an ac-adapter or PS2-powercable. Obviously I'd like this thing to be able to work on my Libretto 110 as well. I'm using a USB2.0-pc-card.
I've read that a lot of people have problems powering them through the usb-port, especially on laptops and pc-cards.
When I look at the power properties of my 'usb root hub' in the device manager I see it is capable of supplying 500mah per port. As this is according to the usb-specs I hope it is able to power an external hd. I have tried my webcam, which claims to draw 500mah, and it works perfectly. But I'm not going to simply trust this.
Does anybody have any experience with powering an external harddisk through USB pc-card on a Libretto? I don't want to end up buying one that doesn't work without extra power.
Thanks, Wouter
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