Date: Sat, 20 Mar 2004 07:58:43 +0100 From: "Wouter Smith" <[EMAIL PROTECTED]> Subject: Re: [LIB] USB powered external HD
But this is not a limitation of the Libretto. According to USB specifications a USB-port should give 500mha (or less). Even my 6 build in USB2.0 port in the desktop can only give 500mha. So if it is true spinning up a 2.5" hd takes about 1000mha, not a single USB-port in the world should be able to power it and they should ALWAYS require a power-adapter of some sort. That means all external HD producers are lying when they say it usually does not require external power (ok, wouldn't be the first time but seems unlikely). Or am I missing something? I've read some posts on the http://www.everythingusb.com/ and there you also hear quite some stories of people requiring external power... Hmmm... so the only way to find out is to actually test it before purchase! And how about those 1.8" HD's?? Like the Archos ARCdisk? Do they require less power to spin? Thanks guys for all your thoughts! Regards, Wouter ----- Original Message ----- From: "Tory" <[EMAIL PROTECTED]> To: "Libretto" <[EMAIL PROTECTED]> Sent: Saturday, March 20, 2004 7:05 AM Subject: RE: [LIB] USB powered external HD > Date: Fri, 19 Mar 2004 23:04:35 -0700 > From: "Tory" <[EMAIL PROTECTED]> > Subject: RE: [LIB] USB powered external HD > > > Hmmm.... what about Firewire cards? Do they also require an external > > power > > cable? > > > > Matt > > The limitation is not what kind of card you plug in the Libretto. It is > how much power the Libretto can give the card. The card can only get > 500ma from the Libretto, so, assuming it uses absolutely no power > itself, it can only pass 500ma through to your HD - not enough to spin > up the HD in 99% of all cases. > > Tory > > > > > ************************************************************** > http://libretto.basiclink.com - Libretto mailing list > http://www.silverace.com/libretto/ - Archives > > -------TO UNSUBSCRIBE------- > Reply to any of the list messages. The reply mail should be > addressed to: [EMAIL PROTECTED] - Then replace any text > on the message's subject line: cmd:unsubscribe > --------TO UNSUBSCRIBE DIGEST------ > Do above but with this on subject line: cmd:unsubscribe digest > ************************************************************** > > ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://www.silverace.com/libretto/ - Archives -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
