Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


Rickles

2255 posts

Uber Geek

Trusted

#92461 30-Oct-2011 08:46
Send private message

I have encountered an odd problem.

I have two external hard drives, both 2.5inch but one is IDE (20GB) and the other SATA (120GB).  Both work fine when cabled to my desktop or laptop.

However, when using a TV media player (NBox), only one drive is recognised by the player unit ... being the IDE drive.

Any ideas why the other drive will not show up? 

I thought that power ratings might be the problem, but then the IDE is 5 volts and the SATA 3.3v, so the mains connected media player should handle that OK?  Both are NTFS and seem the same other than size and brand of casing.

R.

Create new topic
robjg63
3165 posts

Uber Geek


  #539195 30-Oct-2011 08:57
Send private message

Do both or either of the units have an external power supply?
Could be the TV cant supply enough power via USB to power the drive???
It wouldnt be the voltage - USB always supplies 5v.
The wattage may not be enough on a low powered USB port to actually power a device though. 
It would be enough for memory sticks and maybe a very low power consumption disk drive - but the lerger drive probably needs an external power supply connected.




Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler


Rickles

2255 posts

Uber Geek

Trusted

  #539200 30-Oct-2011 09:05
Send private message

Morning Rob,

Ironically, the IDE drive case has a power inlet, but I've never used it since the USB cable delivers enough for it to work. The SATA is pure USB cable driven.

Would the capacity of each drive have such a dramatic effect in this way ... they are afterall the same size platters, surfaces etc? Then again maybe the heads and electronics for the larger capacity drive work harder and need more power?

R.

 
 
 
 


robjg63
3165 posts

Uber Geek


  #539202 30-Oct-2011 09:09
Send private message

See if you can find out which device draws the most current. Id still guess that its that.

Do you have more than one USB port on the TV?

You could try one of those USB cables that has 2 plugs on one end and one on the other:
see http://wiki.answers.com/Q/Connecting_a_double_usb_cable_to_a_laptop
They look like this:
http://www.insidesocal.com/click/toshiba_usb_drive_with_double_USB_cable_550.jpg

You plug the 2 USB plugs on one end into 2 USB ports to get the juice from 2 USB ports

You can also buy "USB powered hubs" if power is the issue (put that into DSE.co.nz search and you will see what I mean). Most PC shops will probably have something like that available as well.




Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler


Rickles

2255 posts

Uber Geek

Trusted

  #539205 30-Oct-2011 09:21
Send private message

Rob,

Not using USB port on the TV, using an intermediate media player (so that I can display videos, pictures etc) on the TV via composite cabling.

Yes, I have the Y-shaped USB cables, but of course the media player has only one USB port.

I'm about to run the SATA drive out of its case using a powered adaptor ... I gues that will prove something .

R.

Rickles

2255 posts

Uber Geek

Trusted

  #539219 30-Oct-2011 10:11
Send private message

UPDATE:

Removed SATA drive from casing and connected to a powered adaptor. Connected to the media player and away it went with no problems at all.

So, short answer is that the bigger capacity drive needed more power than the media player could deliver.

I wonder what the maximum drive size is before a single USB cable won't hack it?

R.

robjg63
3165 posts

Uber Geek


  #539249 30-Oct-2011 12:08
Send private message

I think the general rule of thumb is that anything larger than a USB flash drive - ie a hard drive should probably have an external power supply - guess some of the smaller laptop drive based ones might get enough power from a USB port - but dont count on it....




Nothing is impossible for the man who doesn't have to do it himself - A. H. Weiler


Create new topic





News »

Nanoleaf enhances lighting line with launch of Triangles and Mini Triangles
Posted 17-Oct-2020 20:18


Synology unveils DS16211+
Posted 17-Oct-2020 20:12


Ingram Micro introduces FootfallCam to New Zealand channel
Posted 17-Oct-2020 20:06


Dropbox adopts Virtual First working policy
Posted 17-Oct-2020 19:47


OPPO announces Reno4 Series 5G line-up in NZ
Posted 16-Oct-2020 08:52


Microsoft Highway to a Hundred expands to Asia Pacific
Posted 14-Oct-2020 09:34


Spark turns on 5G in Auckland
Posted 14-Oct-2020 09:29


AMD Launches AMD Ryzen 5000 Series Desktop Processors
Posted 9-Oct-2020 10:13


Teletrac Navman launches integrated multi-camera solution for transport and logistics industry
Posted 8-Oct-2020 10:57


Farmside hits 10,000 RBI customers
Posted 7-Oct-2020 15:32


NordVPN starts deploying colocated servers
Posted 7-Oct-2020 09:00


Google introduces Nest Wifi routers in New Zealand
Posted 7-Oct-2020 05:00


Orcon to bundle Google Nest Wifi router with new accounts
Posted 7-Oct-2020 05:00


Epay and Centrapay partner to create digital gift cards
Posted 2-Oct-2020 17:34


Inseego launches 5G MiFi M2000 mobile hotspot
Posted 2-Oct-2020 14:53









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.