Any USB powered hubs that DO NOT prevent Sleep???

I have a Belkin powered usb hub.
whenever it is attached my computer will not stay in sleep mode.
keeps waking up whenever i try to put it to sleep.
deos anyone know of a usb hub that does not do this??
thank you!

I have nothing but Belkin hubs (both USB 1 and USB 2) at home and work and none of them keep my computers awake. It could be an isolated incident with your hub, it might be one of the cables (that happened to me at work and drove me half nuts!), and it might actually be one of the peripherals you have connected to the hub.

Similar Messages

  • Trust Curve 7 Usb Powered Hub

    Hi guys
    I have bought a new usb powered hub, the Trust Curve 7.
    It's look nice but it doesn't work properly.
    The only way to make it work is to connect the hub without the power supply and only AFTER connect the power supply.
    I think this thing isn't normal and i doesn't like this problem (ok it isn't a big problem but...)
    Any IDEA
    P.s i'm running OSX 10.7 on a macbook pro 13inch late 2011 (i5 dual core 4 gb ram)
    I've try the hub on a windows computer and it's work well
    Regards Andrea

    Hi Schooner17-
    Are the drives bus-powered?
    If so, do they work with the hub on a Mac? Do the drives work 1 at a time?
    That hub might not supply enough juice to power both drives.
    Luck-
    -DP

  • Can I encrypt a USB hard drive that's not for time machine?

    can I encrypt a USB hard drive that's not for time machine?

    Yes, if it has the GUID Partition Map Scheme, but only by erasing it and choosing a new format.
    See #2 in Using Disk Utility.

  • HT5457 will any of the features that are not supported on the IPod touch 4 be available in future updates?

    Will any of the features of iOS6 that are not supported on IPod touch 4 now be available in future software updates?

    We are users, this  is not an Apple forum. We know nothing more about future products.

  • Usb 2 hubs that work with 5gen

    Which USB 2 hubs (Specific brand model) will work with the IPOD 5g with the Imac g5s?
    I bought a Dlink self powered and it wont see my ipod 5g.
    CC

    I just bought and used successfully a self-powered Tripp-Lite Ultra-Mini USB 2.0 Hub 4 ports (model U222-004-R). This solved my problem of the USB port timing out when loading large numbers of photos. Today I was able to download all 7961 photos and their originals to my ipod in one transfer!
    PowerBook5,4   Mac OS X (10.4.6)   60 Gb 5th generation ipod

  • Intel imac won't boot with usb powered hub attached

    My intel imac has started to not boot with a powered (have tried a variety of them) attached. Just stops at the white screen. Also, after I attach the hubs (2, both powered) the computer got into spurts when it just kicks everything attached to the hubs off saying that something pulled too much power. At other times it is fine with the same set up. I've tried resetting the PRam but it didn't make any difference.
    I see from other postings that this isn't too uncommon, but didn't see any fix.
    Thanks

    Can you determine if it is just one of the hubs? Resetting the PRAM probably didn't have anything to do with this problem but the SMC controls the power, try this reset:
    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    The 5 second timing is important to a successful reset.

  • Any USB TV tuner that will work on S10?

    I've thought about adding a USB TV tuner, but the minimum system requirements seem beyond the S10's powers.   Does anyone have experience using a USB TV tuner successfully on the netbook?     Any concerns?   For example, is there enough juice in the S10 to both watch and record?
    Thanks,
    Kevin

    I use a similiar card as kalvin and he is right, it's best to only use the drivers from the installer and leave the app. alone.
    I am using the DScaler app. which is free, open source and fantastic!
    http://deinterlace.sourceforge.net/

  • So i cant share any music with someone that is not near my house?

    My brother has a bunch of music that i want, but he is in some other part of the state>> so i can't share any music with him unless he is at my house?

    so i can't share any music with him unless he is at my house?'
    Correct.
    Sharing requires that devices and computers be within range of your Wi-Fi network. Home in this case.

  • Any USB 2 cards work for PowerMac G4s that didn't have USB 2?

    I noticed based on the specs, if USB 2 was available and so was 10.5, an iPad could be connected. This suggests that at least for 867 Mhz and faster G4s, an iPad is a possibility, if a USB 2 card is added, and only USB 1 was on the logicboard. Has anyone tried this and found ones that work? Either PCMCIA or PCI cards I'd be interested in, since I'm authoring a user tip on which cards would be needed for older Macs to connect the iPad.

    I don't have the ability to test this but my belief is that all USB-1 ports WILL work with two caveats:
    1) No power but this is not a big deal. Simply ensure that the iPad battery is at 100% before using the port. (I routinely use a keyboard USB-2 port that does not provide power.)
    2) Speeds will be slower but the ports should work. To my knowledge, the USB-2 spec requires backward compatibility with USB-1.

  • USB Powered HDD fails - Alu iMac 2.4GHz 21 inch

    Hey folks,
    I have an aluminium iMac 2.4GHz 21 inch model.
    I have been using externally powered USB and FW devices for a while and had no issues. However, I just picked up a USB powered HDD and it cannot consistently transfer data. This same drive works perfectly on my Dell laptop, and I tried another USB powered drive from a friend (which I also know works) on my iMac and it has the same problem - cannot do any sort of mass data transfer.
    I have a powered USB 2 hub (4 port Belkin) and obviously three ports on the iMac.
    I also have two externally powered drives, both of which work fine.
    It appears that any transfers from the INTERNAL drive to a USB Powered drive work ok, but any significant transfers from a USB drive (externally powered) to the USB powered drive FAIL.
    I have tried plugging the USB powered drive into the iMac directly, and into the USB powered hub, no difference.
    I suspect that the USB on the iMac just cannot handle either the power requirements or the data throughput requirements.
    The external USB powered drives are:
    Western Digital Passport 250GB.
    Iomega Select 500GB.
    Any hints? Or is this desktop machine just not made to work with USB powered devices???

    If your two powered external drives are always connected to the iMac, you should really reformat them to +Mac OS Extended (Journaled)+, and not use a Windows format. There are other limitation to FAT32, because it is an old file system from a time when hard drives were very small. One is that data is not stored as efficiently, so the same files (especially if there are a lot of small files) will take up more space on the drive. Another potential conflict is file naming convention; an allowed file name on one may not be allowed in the other (between a Windows format and a Mac format). There is also no journaling with FAT32, which is a feature that helps with data corruption issues. There are probably other disadvantages to using FAT32 on a Mac.
    As a test with that external USB-powered drive (the one you own), you should use Disk Utility to reformat it to a Mac format. Then, try the file transfer again. If it works, then the cause was the existing formatting, although the exact reason may not be clear. If you need it to be FAT32, you can try using Disk Utility to format it as +MS-DOS (FAT)+. Maybe if the Mac does the formatting, it will resolve this problem, even it is still formatted as FAT32 (and it should still work on a PC).
    When going from Mac format to Windows format on the entire drive, you may want to use the Disk Utility Partition tab, and not the Erase tab. On the Partition tab, reset the +Volume Scheme+ to one partition. Click the Options button and it will show the three possible choices for +Partition Map Scheme+. When you format it as +MS-DOS (FAT)+, select +Master Boot Record+. When you format it as +Mac OS Extended (Journaled)+, select +GUID Partition Table+.

  • Does any USB card will worrk in a beige?

    Hi,
    I have a beige, which I think is a rev A ROM, and I wan't to connect my HP Scanjet 6350C scanner to it. I have 2 choices:
    - I can buy a SCSI cable DB25 to HD50 and use the scanner in SCSI mode. This configuration is only supported in OS 9.
    _ can add a USB card and use the scanner in OS X.
    Since the beige is mostly booted in OS X, the second solution will prevent me from rebooting to OS 9 each time I want to scan.
    But, can I buy any USB card from a PC shop and put it in the beige hoping it will work or I need a specific model or type to work in the mac?
    I may not need USB 2.0 since the scanner is USB 1.1 only.
    What are your suggestions?
    Thanks!

    Hello Steve,
    In general, you can install almost any USB card into almost any Beige G3, but that is not exactly the same thing.
    In general, the easiest way to install a USB card is to perform a clean install/re-install of the Operating System with the USB card in place. The Mac installer does not install the appropriate drivers/support unless it "sees" the need, which means it has to get a response from the USB port when it goes looking. You can work around this by doing a custom install or by using Tome Viewer.
    Some people have reported trouble with the Rev A ROM chip; fix is to go with a Rev B ($77D,45F1) or Rev C (&77D.45F2) - a good idea anyhow.
    Some people have reported trouble with certain cards - often some (but not all) Belkins, and with some chips - often (but not always) the OPTI.
    Sometimes these items will not install, but will work after another card has been installed.
    For myself, I have found that doing a clean install/reinstall (of OS9) using an Orange Micro (now out of business) or MacAlly USB/firewire card has yielded 100% success, and has let me use any of the "generic" - or otherwise - cards I have run across.
    Since I haven't (yet) installed OSX on a beige G3, I can't comment on how that will work in your situation.
    HTH ..... Jon

  • Best way to obtain records that are NOT in another table

    I have two rather large tables in oracle. An Account table that has millions of rows. Each account may be enrolled into a particular program and therefore can also be in an Enrollment table, also with millions of rows. I'm trying to find the most optimal way to find any accounts in ACCOUNT that are NOT in the Enrollment table.
    I was doing something like this:
    select /*+ index(ACCOUNT idx_acct_no) */
    a.acct_no
    from ACCOUNT a
    where a.acct_no not in (Select e.acct_no from ENROLLMENT e);
    This takes a VERY long time to execute, even though I am using the index.
    I even tried to use the PK on the ACCOUNT table, as it is also a FK on the ENROLLMENT table as such:
    select a.acct_no
    from ACCOUNT a
    where a.id not in (Select e.id from ENROLLMENT e);
    this too takes too long to get back (if at all).
    Is there a better way to do this selection please?

    Well if you have the energy to type in the whole list, the syntax you've given will work, unless you blow the permitted number of elements.
    But a practical solution would be to turn the list into a table. You still haven't got the hang of this "giving us enough information" concept, so let's presume:
    (1) you're on a version of the databasse whoch is 9i or higher
    (2) you have this list in a file of some sort.
    In which case use an external table or perhaps a pipelined function to generate output which can be used in a SQL statement.
    If neither of these solutions works for you please provide sufficient information for us to answer your question correctly. Your future co-operation is appreciated.
    cheers, APC

  • Any suggested cooling pad that is real good for GT70 2OC?

    So, recently I've been playing games for quite a long period so I would like to buy a better cooling pad to cool down my laptop. Any suggested cooling pad that is not that expensive?

    hi there coolermaster makes some pretty good looking one i ahve yet to buy one because im still trying to decide which laptop i want to buy, im new here and cant post links yet so lookup the coolermaster SF-15 and the coolermaster storm sf-17 hope this helps you

  • USB shared printer - client OS 9 - causes sleeping Mac Pro to Crash

    Printer is a Brother 5140 shared Via USB -
    Client networked to Shared Brother printer works fine if MacPro is "awake". But if MacPro sleeps client sending a job crashes the MacPro.
    Any solutions other than setting MacPro NOT to Sleep?
    Thanks

    Two ways -
    If you have a printer driver in Classic on OS X that is able to print, you can add the USB printer sharing Control Panel to Classic and turn it on to share the printer. You'd have to keep Classic running all the time, and there might be some conflict with OS X printing. ... OK, this one isn't a good option.
    Second way. Go to Printer Setup and highlight the Brother and click Show Info. Write down the Queue Name. Go to Network Prefs and write down the OS X IP address, too.
    On the OS 9 computer, find the Desktop Printer Utility and run it. Add a new LPD printer. Enter IP address, use an Apple LaserWriter PPD (or Color LaserWriter if the printer is color), enter the Queue Name where requested.
    The concept is to send postscript to the OS X print queue, where it is translated and sent to the printer.
    I've done this successfully several times, including one with a Brother HL2040 printer.
    Good luck.

  • Hi. I have the Apple connector kit...and actually played my M-Audio Oxygen 25-keyboard thru  my iPad2--without a powered hub.  But that was two month ago.   Now...I can't get it to play.   I can hear the notes...but faintly.  And I have pushed ALL the pos

    Hi. I have the Apple connector kit...and actually played Garageband via my M-Audio Oxygen 25-keyboard thru  my iPad2--without a powered hub. 
    But that was two month ago.
      Now...I can't get it to play--with volume.   I can hear the notes...but faintly.  And I have pushed ALL possible volume controls up (Keyboard & iPad). 
      I know the keyboard is triggering, because I tested it on a MacBook: got full volume, just like before.
      But just can't get full volume from the iPad2.  I got a 4-port USB hub...and tried interfacing it between the keyboard and the connector kit/iPad2.  But still no volume.  It's almost like a switch is off in the iPad???
      Any help would be appreciated.  Dan

    hello again,
    i didn't really dare to delete the blue home folders before, just in case everything went wrong, but now i think i have so little space that i can't afford to lose 2.25gb!
    one thing that slightly worries me is the fact that the 'proper' library folder (in the home icon) is 2.09gb, whereas the 'wrong' one (from the blue folder forenamesurname) is 2.24gb - this is the one i would be deleting. just seems odd to delete a larger file than the one i presume i'm using.
    "Move everything you want to keep out of the blue folders, and then place both of the folders on your desktop. If everything works properly after a few days, delete both folders. If you are asked for your administrator password at any point or if either folder is copied instead of moved when dragged, don't delete that folder."
    by 'everything you want to keep', does this include the library folder? 'cause there doesn't seem to be much else, and i'm not sure if deleting the library folder would ruin all my preferences.
    i've put both of the folders on the desktop, it didn't ask for the admin password or try to copy them, so i guess that's good news. what kind of things should i be looking out for to act differently?
    are the folders not in use now that they are on the desktop?
    also if i put them in the trash will they have no effect? i.e. the same as permanently deleting them, so i could put them in the trash as a test.
    cheers, stephen.

Maybe you are looking for