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 Forum index » Advanced Topics » Hardware
USB2 & USB3 on new PCs
Moderators: Flash, Ian, JohnMurga
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gcmartin

Joined: 14 Oct 2005
Posts: 6730
Location: Earth
PostPosted: Sun 04 Nov 2012, 22:00    Post subject:  USB2 & USB3 on new PCs  
Can any of our hardware specialist explain why vendors are including USB2 on newer boards with USB3?

Is there any known problems either in USB standards or in problems with chipset/motherboard processing power?

Help if you can.
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tony

Joined: 14 Jan 2006
Posts: 326
Location: Montreal.ca
PostPosted: Mon 05 Nov 2012, 05:15    Post subject:  
Hi gcmartin,

It could be the lack of USB3 drivers in earlier software.

http://www.murga-linux.com/puppy/viewtopic.php?t=70855&start=2160

Regards Tony.
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lwill


Joined: 13 Jun 2008
Posts: 173
Location: City Of Lights
PostPosted: Mon 05 Nov 2012, 13:17    Post subject:  
Just a guess, but since USB3 is still new, the components used still cost more. Once is is more widely used price will come down and it will become default.
The other reason is USB3 can supply A LOT more power which most things don't need. If all ports were USB3 then the power supply and board layout would have to handle the MAX possible usage, again increasing cost.
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dennis-slacko531


Joined: 18 Jan 2012
Posts: 103
Location: Oregon
PostPosted: Sat 10 Nov 2012, 22:33    Post subject:  
lwill wrote:
Just a guess, but since USB3 is still new, the components used still cost more. Once is is more widely used price will come down and it will become default.
The other reason is USB3 can supply A LOT more power which most things don't need. If all ports were USB3 then the power supply and board layout would have to handle the MAX possible usage, again increasing cost.


That is a great answer! Awhile back I wondered if a PC needed a hard drive. I found an answer, and basically YES they seem to still need HDD's because of "power supply loading." Here's something from Tom's:
http://www.tomshardware.com/reviews/power-supply-specifications-atx-reference,3061-13.html

***** Downloaded Carolina 003 tonight. I hope Elroy/Geoffrey keeps it as fast as Saluki is/was.
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