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From: Jan Alter on 23 May 2010 22:24
"Carl" <carl33(a)mailinator.com> wrote in message
news:832c152d-98be-4425-8c3e-52bc183b51f5(a)40g2000vbr.googlegroups.com...
On May 23, 1:27 pm, Paul <nos...(a)needed.com> wrote:
> Carl wrote:
> > I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit).
> > My external hard drive w/USB adapter won't work with it, and it will
> > work plugged directly into a USB port on a different laptop. (My USB
> > ports got fried.) I got the card off E-Bay. My MP3 player works
> > plugged into that card. The drivers for the card say "Known
> > limitations: High Speed Isochronus, USB Composite Devices." (No other
> > details provided.) I don't know if the hard drive adapter is
> > "isochronous" or "composite." I've read there are problems with too
> > little power being supplied to the drive. The cable to the drive has
> > two USB plugs on one end, and it doesn't make any difference if I plug
> > both of them into the Cardbus card.
>
> > What card should I get? I see many different brands on E-Bay. I need
> > one that supplies sufficient power for an external hard drive, and
> > doesn't have any "known limitations" in the way.
>
> If you used an external 3.5" USB drive enclosure, they come
> with their own power adapter. That is another way to solve the
> problem.
>
> http://images17.newegg.com/is/image/newegg/22-152-230-Z05?$S640W$
>
> Paul

>It's a 2.5" USB drive enclosure. It doesn't have a plug for a power
>adapter.

In that case move the hdd to an external drive case that has an additional
power plug recepticle on it. Make sure you find out what the internal
connector is for your 2.5" hdd (IDE or SATA)

As an example. With these drives you would need to purchase an additional
power to USB cable, but it should certainly work if you have two USB ports
available and one to use for a mouse. This one has an internal SATA
connection.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817145329


--
Jan Alter
bearpuf(a)verizon.net


From: Don Phillipson on 23 May 2010 17:41
"Carl" <carl33(a)mailinator.com> wrote in message
news:df27edd5-4118-4fc8-9e0b-dd095d5a6c06(a)c13g2000vbr.googlegroups.com...

> I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit).
> My external hard drive w/USB adapter won't work with it, and it will
> work plugged directly into a USB port on a different laptop. (My USB
> ports got fried.) I got the card off E-Bay. My MP3 player works
> plugged into that card. The drivers for the card say "Known
> limitations: High Speed Isochronus, USB Composite Devices." (No other
> details provided.) I don't know if the hard drive adapter is
> "isochronous" or "composite." I've read there are problems with too
> little power being supplied to the drive. The cable to the drive has
> two USB plugs on one end, and it doesn't make any difference if I plug
> both of them into the Cardbus card.
>
> What card should I get?

The alternative is to get an enclosure for the ext. hard
drive. The Samba brands include a transformer to
supply drive power separately from the USB port.

--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)


From: Dan on 24 May 2010 08:42
On May 24, 12:41 am, "Don Phillipson" <e...(a)SPAMBLOCK.ncf.ca> wrote:
> "Carl" <car...(a)mailinator.com> wrote in message
>
> news:df27edd5-4118-4fc8-9e0b-dd095d5a6c06(a)c13g2000vbr.googlegroups.com...
>
> > I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit).
> > My external hard drive w/USB adapter won't work with it, and it will
> > work plugged directly into a USB port on a different laptop. (My USB
> > ports got fried.) I got the card off E-Bay. My MP3 player works
> > plugged into that card. The drivers for the card say "Known
> > limitations: High Speed Isochronus, USB Composite Devices." (No other
> > details provided.) I don't know if the hard drive adapter is
> > "isochronous" or "composite." I've read there are problems with too
> > little power being supplied to the drive. The cable to the drive has
> > two USB plugs on one end, and it doesn't make any difference if I plug
> > both of them into the Cardbus card.
>
> > What card should I get?
>
> The alternative is to get an enclosure for the ext. hard
> drive. The Samba brands include a transformer to
> supply drive power separately from the USB port.
>
> --
> Don Phillipson
> Carlsbad Springs
> (Ottawa, Canada)

Some 2.5 inch ext drives cables are y-shaped, with one arm of the "y"
much longer--this gets into the gadget. The shorter arm contains Vcc
and GND only, no data. I've thought all along if you have device not
being detected properly because of insufficient power you could double
the shorter "y" arm and plug it into adjacent unused USB port to boost
the Vcc to gadget.
From: J G Miller on 24 May 2010 09:57
On Sun, 23 May 2010 22:24:01 -0400, Jan Alter wrote:
> In that case move the hdd to an external drive case that has an
> additional power plug recepticle on it. Make sure you find out what the
> internal connector is for your 2.5" hdd (IDE or SATA)

Good advice, but if the PC has an eSATA connector, then even better,
get an external case with an eSATA connection.

USB 2 allows transfer speeds of up to 480 MBytes per second.

eSATA allows transfer speeds of up to 3 GBytes per second.
From: Carl on 24 May 2010 12:58
> >It's a 2.5" USB drive enclosure. It doesn't have a plug for a power
> >adapter.
>
> In that case move the hdd to an external drive case that has an additional
> power plug recepticle on it. Make sure you find out what the internal
> connector is for your 2.5" hdd (IDE or SATA)
>
> As an example. With these drives you would need to purchase an additional
> power to USB cable, but it should certainly work if you have two USB ports
> available and one to use for a mouse. This one has an internal SATA
> connection.
>
> http://www.newegg.com/Product/Product.aspx?Item=N82E16817145329
>
> --
> Jan Alter
> bear...(a)verizon.net

That page says "There's no external power necessary either, since the
drive gets its power from your computer." I already have an external
drive case - that's how I'm accessing my 2.5 " IDE drive via a USB
port.

I don't see any listing on E-Bay matching "wall wart USB socket" as
someone else here suggested (0 listings), and I don't see anything
relevant when searching for "power usb cable." What EXACTLY is it
called - a transformer you plug in the wall, and it has a cable with a
USB socket on the end of it. Thanks.
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