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USB3 in PCs

Discussion in 'Notebooks' started by Roy, Jan 26, 2010.

  1. Roy

    Roy Flightless Bird

    Hello group
    Currently we are still having the USB 2.0 set up for our PCs? When
    will this USB3 starts to be placed in PCs?
    What will be the backward compatibility issues with the USB 1.0. and
    USB 2.0. I heard that it has more connectors?
    Would USB 3.0 be more power hungry than USB 2.0? hence in laptops it
    may drain more battery juice?


    TIA
    Roy
     
  2. M.I.5¾

    M.I.5¾ Flightless Bird

    "Roy" <roybasan@gmail.com> wrote in message
    news:1789ce8f-d50a-4ad1-ae0a-d084e5064a3e@b2g2000yqi.googlegroups.com...
    > Hello group
    > Currently we are still having the USB 2.0 set up for our PCs? When
    > will this USB3 starts to be placed in PCs?
    > What will be the backward compatibility issues with the USB 1.0. and
    > USB 2.0. I heard that it has more connectors?
    > Would USB 3.0 be more power hungry than USB 2.0? hence in laptops it
    > may drain more battery juice?
    >


    USB3 (or SuperSpeed USB as it has been named) uses an enhanced connector
    with 5 more contacts. It is fully backward compatible with existing USB2
    and 1 devices.

    I have already seen PC systems reporting the presence of a UHCI port (USB3)
    in the BIOS bootup screen, but these have been high end systems driving the
    likes of railway passenger information systems.

    We should have seen the hardware for USB3 ports in mainstream PCs pretty
    soon, but Intel have stated that they will not support it in their chipsets
    until at least 2011 which will slow down deployment of peripherals
    considerably.

    http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=220700486

    USB3 will require more processor support, so battery life is likely to take
    a hit. The power available from USB3 ports is nearly doubled at 900 mA so
    this may provide an additional clue.
     
  3. Roy

    Roy Flightless Bird

    On Jan 27, 5:30 pm, "M.I.5¾" <no....@no.where.NO_SPAM.co.uk> wrote:

    > USB3 (or SuperSpeed USB as it has been named) uses an enhanced connector
    > with 5 more contacts.  It is fully backward compatible with existing USB2
    > and 1 devices.
    >
    > I have already seen PC systems reporting the presence of a UHCI port (USB3)
    > in the BIOS bootup screen, but these have been high end systems driving the
    > likes of railway passenger information systems.
    >
    > We should have seen the hardware for USB3 ports in mainstream PCs pretty
    > soon, but Intel have stated that they will not support it in their chipsets
    > until at least 2011 which will slow down deployment of peripherals
    > considerably.
    >
    > http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=220700486
    >
    > USB3 will require more processor support, so battery life is likely to take
    > a hit.  The power available from USB3 ports is nearly doubled at 900 mAso
    > this may provide an additional clue.


    Hmm , thanks for that information..... The higher power requirements
    is main the drawback, I see ...
    Hope to see more information for this super speed USB....
    Regards
    Roy
     
  4. Cameo

    Cameo Flightless Bird

    "M.I.5l" <no.one@no.where.NO_SPAM.co.uk> wrote in message
    news:4b600765$1_1@glkas0286.greenlnk.net...
    > USB3 will require more processor support, so battery life is likely to
    > take a hit. The power available from USB3 ports is nearly doubled at
    > 900 mA so this may provide an additional clue.


    That's why I prefer firewire; it does not hog the main CPU as USB does.
     
  5. BillW50

    BillW50 Flightless Bird

    Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    > "M.I.5l" <no.one@no.where.NO_SPAM.co.uk> wrote in message
    > news:4b600765$1_1@glkas0286.greenlnk.net...
    >> USB3 will require more processor support, so battery life is likely to
    >> take a hit. The power available from USB3 ports is nearly doubled at
    >> 900 mA so this may provide an additional clue.

    >
    > That's why I prefer firewire; it does not hog the main CPU as USB does.


    If you want speed with little CPU usage, wouldn't using an external
    eSATA connection be better? As eSATA is 6 times faster than USB2.

    --
    Bill
    Asus EEE PC 702G4 ~ 2GB RAM ~ 16GB-SDHC
    Xandros Linux (build 2007-10-19 13:03)
     
  6. BillW50

    BillW50 Flightless Bird

    BillW50 wrote on Wed, 27 Jan 2010 13:47:22 -0600:
    > Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    >> "M.I.5l" <no.one@no.where.NO_SPAM.co.uk> wrote in message
    >> news:4b600765$1_1@glkas0286.greenlnk.net...
    >>> USB3 will require more processor support, so battery life is likely
    >>> to take a hit. The power available from USB3 ports is nearly doubled
    >>> at 900 mA so this may provide an additional clue.

    >>
    >> That's why I prefer firewire; it does not hog the main CPU as USB does.

    >
    > If you want speed with little CPU usage, wouldn't using an external
    > eSATA connection be better? As eSATA is 6 times faster than USB2.


    I just got a newsletter from Asus and they have a laptop with USB3. And
    newegg has them for under 1000 bucks. Claim is USB3 is 10 times faster
    than USB2. Gee that has everything else like firewire and eSATA beat if
    true.

    http://www.newegg.com/Product/Product.aspx?Item=N82E16834220696&Tpk=N61Jq

    --
    Bill
    Asus EEE PC 702G4 ~ 2GB RAM ~ 16GB-SDHC
    Xandros Linux (build 2007-10-19 13:03)
     
  7. Roy

    Roy Flightless Bird

    On Jan 28, 6:38 am, BillW50 <Bill...@aol.kom> wrote:
    > BillW50 wrote on Wed, 27 Jan 2010 13:47:22 -0600:
    >
    > > Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    > >> "M.I.5l" <no....@no.where.NO_SPAM.co.uk> wrote in message
    > >>news:4b600765$1_1@glkas0286.greenlnk.net...
    > >>> USB3 will require more processor support, so battery life is likely
    > >>> to take a hit.  The power available from USB3 ports is nearly doubled
    > >>> at 900 mA so this may provide an additional clue.

    >
    > >> That's why I prefer firewire; it does not hog the main CPU as USB does..

    >
    > > If you want speed with little CPU usage, wouldn't using an external
    > > eSATA connection be better? As eSATA is 6 times faster than USB2.

    >
    > I just got a newsletter from Asus and they have a laptop with USB3. And
    > newegg has them for under 1000 bucks. Claim is USB3 is 10 times faster
    > than USB2. Gee that has everything else like firewire and eSATA beat if
    > true.
    >
    > http://www.newegg.com/Product/Product.aspx?Item=N82E16834220696&Tpk=N....
    >
    > --
    > Bill
    > Asus EEE PC 702G4 ~ 2GB RAM ~ 16GB-SDHC
    > Xandros Linux (build 2007-10-19 13:03)


    Hmm , does it mean the other way that number of USB slots iN Asus
    laptop is 3 ?
     
  8. BillW50

    BillW50 Flightless Bird

    Roy wrote on Wed, 27 Jan 2010 14:54:26 -0800 (PST):
    > On Jan 28, 6:38 am, BillW50 <Bill...@aol.kom> wrote:
    >> BillW50 wrote on Wed, 27 Jan 2010 13:47:22 -0600:
    >>
    >>> Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    >>>> "M.I.5l" <no....@no.where.NO_SPAM.co.uk> wrote in message
    >>>> news:4b600765$1_1@glkas0286.greenlnk.net...
    >>>>> USB3 will require more processor support, so battery life is likely
    >>>>> to take a hit. The power available from USB3 ports is nearly doubled
    >>>>> at 900 mA so this may provide an additional clue.
    >>>> That's why I prefer firewire; it does not hog the main CPU as USB does.
    >>> If you want speed with little CPU usage, wouldn't using an external
    >>> eSATA connection be better? As eSATA is 6 times faster than USB2.

    >> I just got a newsletter from Asus and they have a laptop with USB3. And
    >> newegg has them for under 1000 bucks. Claim is USB3 is 10 times faster
    >> than USB2. Gee that has everything else like firewire and eSATA beat if
    >> true.
    >>
    >> http://www.newegg.com/Product/Product.aspx?Item=N82E16834220696&Tpk=N...

    >
    > Hmm , does it mean the other way that number of USB slots iN Asus
    > laptop is 3 ?


    Oh I see. Newegg isn't promoting it with USB3 ports, but just with 3 USB
    ports. Well the Asus newsletter I just got makes it very clear. As the
    newsletter states that the Asus N61Jq is one of the first notebooks
    using USB3, up to 10 times faster than USB2. I tried to copy and paste
    it, but Thunderbird for Linux won't let me. :-(

    --
    Bill
    Asus EEE PC 702G4 ~ 2GB RAM ~ 16GB-SDHC
    Xandros Linux (build 2007-10-19 13:03)
     
  9. M.I.5¾

    M.I.5¾ Flightless Bird

    "BillW50" <BillW50@aol.kom> wrote in message
    news:hjqf5q$mid$1@news.eternal-september.org...
    > BillW50 wrote on Wed, 27 Jan 2010 13:47:22 -0600:
    >> Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    >>> "M.I.5l" <no.one@no.where.NO_SPAM.co.uk> wrote in message
    >>> news:4b600765$1_1@glkas0286.greenlnk.net...
    >>>> USB3 will require more processor support, so battery life is likely to
    >>>> take a hit. The power available from USB3 ports is nearly doubled at
    >>>> 900 mA so this may provide an additional clue.
    >>>
    >>> That's why I prefer firewire; it does not hog the main CPU as USB does.

    >>
    >> If you want speed with little CPU usage, wouldn't using an external eSATA
    >> connection be better? As eSATA is 6 times faster than USB2.

    >
    > I just got a newsletter from Asus and they have a laptop with USB3. And
    > newegg has them for under 1000 bucks. Claim is USB3 is 10 times faster
    > than USB2. Gee that has everything else like firewire and eSATA beat if
    > true.
    >
    > http://www.newegg.com/Product/Product.aspx?Item=N82E16834220696&Tpk=N61Jq
    >


    IYWF that it says *up to* 10 times faster. Translated, that means you *may*
    get 10 times the speed under laboratory conditions but real world speeds are
    likely to be less.
     
  10. ~misfit~

    ~misfit~ Flightless Bird

    Somewhere on teh intarwebs Roy wrote:
    > On Jan 27, 5:30 pm, "M.I.5¾" <no....@no.where.NO_SPAM.co.uk> wrote:
    >
    >> USB3 (or SuperSpeed USB as it has been named) uses an enhanced
    >> connector with 5 more contacts. It is fully backward compatible with
    >> existing USB2 and 1 devices.
    >>
    >> I have already seen PC systems reporting the presence of a UHCI port
    >> (USB3) in the BIOS bootup screen, but these have been high end
    >> systems driving the likes of railway passenger information systems.
    >>
    >> We should have seen the hardware for USB3 ports in mainstream PCs
    >> pretty soon, but Intel have stated that they will not support it in
    >> their chipsets until at least 2011 which will slow down deployment
    >> of peripherals considerably.
    >>
    >> http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=220700486
    >>
    >> USB3 will require more processor support, so battery life is likely
    >> to take a hit. The power available from USB3 ports is nearly doubled
    >> at 900 mA so this may provide an additional clue.

    >
    > Hmm , thanks for that information..... The higher power requirements
    > is main the drawback, I see ...
    > Hope to see more information for this super speed USB....


    It's not a higher power requirement, it's a higher power *availability* for
    bus-powered devices. It doesn't mean that the interface will be drawing more
    power, just that it is able to supply it if needed. USB2 can supply 500mA
    [@5V], USB3 can supply 900mA.

    The specs have been all over teh intarwebs for months now.
    --
    Shaun.

    "Give a man a fire and he's warm for the day. But set fire to him and he's
    warm for the rest of his life." Terry Pratchet, 'Jingo'.
     
  11. Cameo

    Cameo Flightless Bird

    "M.I.5l" <no.one@no.where.NO_SPAM.co.uk> wrote in message
    news:4b6158db$1_1@glkas0286.greenlnk.net...
    > IYWF that it says *up to* 10 times faster. Translated, that means you
    > *may* get 10 times the speed under laboratory conditions but real
    > world speeds are likely to be less.


    Probably with some expensive new cables.
     
  12. Bob Villa

    Bob Villa Flightless Bird

    On Jan 28, 2:09 pm, "Cameo" <ca...@cameo.invalid> wrote:
    > "M.I.5l" <no....@no.where.NO_SPAM.co.uk> wrote in message
    >
    > news:4b6158db$1_1@glkas0286.greenlnk.net...
    >
    > > IYWF that it says *up to* 10 times faster.  Translated, that means you
    > > *may* get 10 times the speed under laboratory conditions but real
    > > world speeds are likely to be less.

    >
    > Probably with some expensive new cables.


    You can buy adapter boards with USB 3.0 (for $30) if you have PCIe.

    bob
     
  13. Roy

    Roy Flightless Bird

    On Jan 28, 7:50 am, BillW50 <Bill...@aol.kom> wrote:
    > Roy wrote on Wed, 27 Jan 2010 14:54:26 -0800 (PST):
    >
    >
    >
    >
    >
    > > On Jan 28, 6:38 am, BillW50 <Bill...@aol.kom> wrote:
    > >> BillW50 wrote on Wed, 27 Jan 2010 13:47:22 -0600:

    >
    > >>> Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    > >>>> "M.I.5l" <no....@no.where.NO_SPAM.co.uk> wrote in message
    > >>>>news:4b600765$1_1@glkas0286.greenlnk.net...
    > >>>>> USB3 will require more processor support, so battery life is likely
    > >>>>> to take a hit.  The power available from USB3 ports is nearly doubled
    > >>>>> at 900 mA so this may provide an additional clue.
    > >>>> That's why I prefer firewire; it does not hog the main CPU as USB does.
    > >>> If you want speed with little CPU usage, wouldn't using an external
    > >>> eSATA connection be better? As eSATA is 6 times faster than USB2.
    > >> I just got a newsletter from Asus and they have a laptop with USB3. And
    > >> newegg has them for under 1000 bucks. Claim is USB3 is 10 times faster
    > >> than USB2. Gee that has everything else like firewire and eSATA beat if
    > >> true.

    >
    > >>http://www.newegg.com/Product/Product.aspx?Item=N82E16834220696&Tpk=N...

    >
    > > Hmm , does it mean the other way that  number of USB slots iN Asus
    > > laptop is 3 ?

    >
    > Oh I see. Newegg isn't promoting it with USB3 ports, but just with 3 USB
    > ports. Well the Asus newsletter I just got makes it very clear. As the
    > newsletter states that the Asus N61Jq is one of the first notebooks
    > using USB3, up to 10 times faster than USB2. I tried to copy and paste
    > it, but Thunderbird for Linux won't let me. :-(
    >
    > --
    > Bill
    > Asus EEE PC 702G4 ~ 2GB RAM ~ 16GB-SDHC
    > Xandros Linux (build 2007-10-19 13:03)- Hide quoted text -
    >
    > - Show quoted text -


    Hmm, so if Intel does not yet support the USB3 until 2011, then
    probably that Asus N61jq is run by an AMD chip?

    http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=220700486

    Roy
     
  14. BillW50

    BillW50 Flightless Bird

    In news:4b6158db$1_1@glkas0286.greenlnk.net,
    M.I.5¾ typed on Thu, 28 Jan 2010 09:30:02 -0000:
    > "BillW50" <BillW50@aol.kom> wrote in message
    > news:hjqf5q$mid$1@news.eternal-september.org...
    >> BillW50 wrote on Wed, 27 Jan 2010 13:47:22 -0600:
    >>> Cameo wrote on Wed, 27 Jan 2010 11:37:36 -0800:
    >>>> "M.I.5l" <no.one@no.where.NO_SPAM.co.uk> wrote in message
    >>>> news:4b600765$1_1@glkas0286.greenlnk.net...
    >>>>> USB3 will require more processor support, so battery life is
    >>>>> likely to take a hit. The power available from USB3 ports is
    >>>>> nearly doubled at 900 mA so this may provide an additional clue.
    >>>>
    >>>> That's why I prefer firewire; it does not hog the main CPU as USB
    >>>> does.
    >>>
    >>> If you want speed with little CPU usage, wouldn't using an external
    >>> eSATA connection be better? As eSATA is 6 times faster than USB2.

    >>
    >> I just got a newsletter from Asus and they have a laptop with USB3.
    >> And newegg has them for under 1000 bucks. Claim is USB3 is 10 times
    >> faster than USB2. Gee that has everything else like firewire and
    >> eSATA beat if true.
    >>
    >> http://www.newegg.com/Product/Product.aspx?Item=N82E16834220696&Tpk=N61Jq
    >>

    >
    > IYWF that it says *up to* 10 times faster. Translated, that means
    > you *may* get 10 times the speed under laboratory conditions but real
    > world speeds are likely to be less.


    Yes we know. Kind of like MPG ratings on cars. You only see those MPG
    rates if you travel downhill all of the time. Or have a 60MPH wind
    pushing you along the highway. ;-)

    --
    Bill
    Gateway M465e ('06 era) - Windows XP SP3
     
  15. ~misfit~

    ~misfit~ Flightless Bird

    Somewhere on teh intarwebs Bob Villa wrote:
    > On Jan 28, 2:09 pm, "Cameo" <ca...@cameo.invalid> wrote:
    >> "M.I.5l" <no....@no.where.NO_SPAM.co.uk> wrote in message
    >>
    >> news:4b6158db$1_1@glkas0286.greenlnk.net...
    >>
    >>> IYWF that it says *up to* 10 times faster. Translated, that means
    >>> you *may* get 10 times the speed under laboratory conditions but
    >>> real world speeds are likely to be less.

    >>
    >> Probably with some expensive new cables.

    >
    > You can buy adapter boards with USB 3.0 (for $30) if you have PCIe.


    I might have to look for an expresscard version for my laptop. Perhaps when
    prices drop a bit and I have USB3 peripherals, LOL. I've recently invested
    in USB2 fan-cooled 'docks' so I can access the couple of 1.5TB HDDs I bought
    when I was still using a desktop from my laptop. I guess they'll be
    redundant soon. Oh well, they're fast enough for my current needs (backup
    and storage).
    --
    Shaun.

    "Give a man a fire and he's warm for the day. But set fire to him and he's
    warm for the rest of his life." Terry Pratchet, 'Jingo'.
     
  16. Roy

    Roy Flightless Bird

    On Jan 27, 5:30 pm, "M.I.5¾" <no....@no.where.NO_SPAM.co.uk> wrote:

    > USB3 (or SuperSpeed USB as it has been named) uses an enhanced connector
    > with 5 more contacts.  It is fully backward compatible with existing USB2
    > and 1 devices.
    >
    > I have already seen PC systems reporting the presence of a UHCI port (USB3)
    > in the BIOS bootup screen, but these have been high end systems driving the
    > likes of railway passenger information systems.
    >
    > We should have seen the hardware for USB3 ports in mainstream PCs pretty
    > soon, but Intel have stated that they will not support it in their chipsets
    > until at least 2011 which will slow down deployment of peripherals
    > considerably.


    Now as its likely some time before most PCs will be equipped with the
    USB3 slot, Would the advantage of faster data transfer be achieved if
    we use the existing USB2,0 port for the USB3.0 flash drive?

    >
    > http://www.eetimes.com/news/latest/showArticle.jhtml?articleID=220700486
    >
    > USB3 will require more processor support, so battery life is likely to take
    > a hit.  The power available from USB3 ports is nearly doubled at 900 mAso
    > this may provide an additional clue.
     
  17. Mark F

    Mark F Flightless Bird

    On Thu, 28 Jan 2010 09:30:02 -0000, "M.I.5¾"
    <no.one@no.where.NO_SPAM.co.uk> wrote in part:
    > IYWF that it says *up to* 10 times faster. Translated, that means you *may*
    > get 10 times the speed under laboratory conditions but real world speeds are
    > likely to be less.

    It usually doesn't even mean that.

    What typically is meant is that the bit rates are 10 times faster
    and no one has actually considered the limitations by protocol
    overhead or the actual controller chip in the device whose speed is
    being characterized.

    For example, I have disks that run at 20MB/second with some USB 2
    adapter and more than 35MB/second on others, even though all of the
    USB 2 controllers are stated as running at 480mb/second.

    For comparison, the same disk on the same computers run from
    35MB/s to 55MB/second using IEEE-1394a and show eSATA performance
    of up to 60MB/s, 90MB/s and 120MB/s (actually buffered reads go a bit
    faster) depending on the computer and SATA adaptor card.

    For SATA, depending on the adaptor, the instantaneous bit rate
    is 150mb/second or 300mb/second, which corresponds to the 400mb/second
    "speced" number for IEEE-1394a, and all of the USB 2 stuff saying
    480mb/second.
     

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