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• Which power USB hub uses if it has external power supply as well

  - by Mirage

  I have 7 port USB hub with external supply. I tried turning it off by removing external power but then it takes power from motherboard and is still working. I have many external hardrives connected to it. i was worrying if i turn off the power it may damage the motherboard by withdrawing so much power from that USB

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• Snow Leopard Compatible Drivers for Moschip MCS7720 USB-to-Serial Controller

  - by Kristopher Johnson

  We are using Cables Unlimited USB-2925 USB-to-Dual-DB9 serial cables, which use the Moschip MCS7720 controller. We have downloaded the newest driver from http://www.moschip.com/mcs7720.php, but that driver was last updated in 2005. It does not seem to be working with Macs running OS X 10.6 Snow Leopard. Does anyone know of any updates for this driver, or are there any ways to get the driver to work with Snow Leopard?

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• Install OpenBSD from a USB flashdrive : "No OS" message on boot

  - by Opera

  Hello everyone, I'm attempting to install OpenBSD on a fancy new home server equipment I just bought and here is my problem. I followed this guide to create a bootable USB flash drive from an OpenBSD VM I have on my laptop but when I try to boot my laptop on it all I get is a "No OS" message (I tried two different USB keys). Does anyone know that problem (and its solution) ?

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• Why won't my Nokia E52 charge on some USB ports

  - by snot

  I have two computers. If I connect my Nokia to one of them using the usb cable the charge process will start. If I connect the phone to the other computer (using the same cable!) it won't start charging. Any suggestions what the problem is? (I couldn't find a usb related difference between both computers)

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• Implications of using many USB web cameras

  - by Martin

  I'm looking into connecting multiple low resolution USB webcams to a single computer. What implications might this have on performance? How does, for example, four 320x240 cameras fare against a single 640x480 camera? I'm not well versed in the architecture of the USB interface, what are the performance caveats? By performance I mean how would it affect the time to read the image data from multiple cameras compared to a single one.

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• How to encrypt an USB stick?

  - by Dimitri C.

  When storing personal data on a USB stick, data needs to be encrypted to ensure privacy. Regrettably, this is far from easy to do without introducing a lot of overhead; ideally, the whole encryption process should done automatically. Does anyone know of a convenient way to encrypt the data on a USB drive? Update: I am using Windows Vista, although I would prefer a cross-platform solution.

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• usb write protected!

  - by kc rajput

  i have problem in pen drive. when i copying my data in usb then a message occur that drive is write protected. how can i remove write protection from my usb.

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• Use standard USB flash disk as security token

  - by Harun Baris Bulut

  We want our users in company to login their computers by using their USB Flash Disks or something else. Is there a way to achieve this without buying a USB token from a company ?

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• Xubuntu 9.10 LiveCD on USB fails with error can't open /dev/sr0: no medium found

  - by EricJLN

  Using Ubuntu's USB Startup Disk Creator (usb-creator-gtk), I created a LiveUSB from the Xubuntu 9.10 LiveCD. When booting, it stalls up with the Xubuntu mouse splash screen displayed. In attempting to troubleshoot, I used Ctrl-Alt-F1 to check out the first virtual terminal. On that screen, I see over and over again the lines: stdin: I/O error stdin: error 0 /init: line 1: can't open /dev/sr0: No medium found

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• Do USB microphone/headsets require special hardware?

  - by user32831

  I have a new Thinkpad T-510. I'm thinking of getting a USB microphone/headset to use with my Dragon Naturally speaking software program. Do USB microphone/headsets typically work with most new laptops or do they require some special hardware?

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• External USB disk drive cannot be remounted in Windows XP

  - by jackhab

  I have Maxtor Basics Desktop 1TB external USB drive connected to Windows XP. The dirve's firmware puts it to sleep after 10-20 min of inactivity and then the drive cannot be mounted unless I reset it via power connector. While in sleep mode I can see the device in the Device Manager under both Disk drives and USB sections. Is there a way to get the drive out of sleep mode without hard reset? Thanks

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• Re. copying movie from USB card reader back to my camera

  - by Alice P

  I have a Canon Digital Ixus 860IS. I originally copied a short movie from my camera onto the computer via a USB card reader and then copied it back onto the camera via the same USB card reader along with some photos. The photos have copied back fine but the movie, although it's showing to have copied, can't be seen. Any reason for this? Thanks

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• USB mouse not detected on laptop running Ubuntu

  - by doug

  I just added a USB mouse to my laptop which is running Ubuntu 9.10. However, the mouse isn't automaticaly detected. Do you know how I can make my USB mouse usable on an Ubuntu machine?

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• Make a radio-streaming PC pretend to be a mass-storage USB device

  - by monov

  I'm listening to a net radio on my PC I want the sound to go through my boombox cause it has nice speakers/amp The boombox has no "incoming" audio jack that just plays what comes over the wire However the boombox has a USB jack where you can put a thumbdrive with music. The question: How do I make the PC pretend to be a mass-storage device, and dynamically send all received audiodata to the boombox over a symmetric male USB cable? Failing that, at least tell me how to do it for local files (rather than streams). OS: Vista

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• Make a bootable usb to install Windows XP from Linux

  - by Pablo Rosales

  I have a Dell Mini 9 with only Ubuntu installed, I want to install Windows XP also but I don't have and can't get an external CD drive, so I need to make a windows installation from the usb. All the tutorials I found use windows to make the usb bootable, how can I make the same from linux?

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• Sending ASCII characters on Mac USB/RS232 cable

  - by Olivier

  Hello, I have a RS232C/USB cable to connect an electronic device to my iMac Intel (MacOSX SnowLeo 10.6.3). Is there a utility program that allows for sending ASCII characters on the USB port that the RS232C device will understand? If possible, I'd rather avoid programming. I'd prefer an Automator script or a simple program with a GUI. Thanks

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• saving changes in fedora live usb

  - by Surjya Narayana Padhi

  I recently installed Fedora 12 on my USB drive. But I am not able to save the changes I do in a live session. I created 2 users and put some icons in desktop... But after I restarted Fedora from the live usb, the changes could not be seen. Can anybody suggest what to do to save the changes?

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• Installing Windows 7 on a netbook using SanDisk USB Cruzer

  - by alexus

  I have this weird problem with my SanDisk USB Cruzer maybe someone can help me... I removed U3 software I used diskpart.exe to "activate" my partition yet when I restart my computer and select to boot off of USB it won't boot, my computer freezes and nothing is happening after that. any ideas what am I doing wrong?

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• Disable USB powered light from command line?

  - by Jeff Welling

  I have a nice little USB light which has no off switch, it is 'on' for the duration of being plugged in. My question is, is there a way of disabling the USB port so as to turn off the light while it is still plugged in? Preferably, this could be done from the command line, but if it's possible at all that would be really cool regardless. I use Mac and Linux, but am interested to learn if this is possible in any OS, or if physical hardware prevents usage like this.

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• Wireless USB devices compatible with Windows 7 64-bit

  - by BrynJ

  I want to upgrade my Vista 64-bit edition to Windows 7 64-bit, so I've installed and run the Windows 7 Compatibility Test. The only item that is being highlighted as incompatible is my Zyxel G-202 wireless usb network device. Does anyone know of a wireless USB device that is compatible with Windows 7 64-bit?

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• usb audio recording: clicking noice

  - by snot

  I'm having problems recording audio on windows using usb audio devices. The recorded material will have some kind of jitter/clicking noice. I tested three different usb microphones and three different recording applications. Every combination will have the same problem. Does some one know a solution for this problem?

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• Will not POST with a USB mouse or keyboard plugged in

  - by Thomas O

  I have an Abit KN9 motherboard, and a USB keyboard and mouse. The computer will not POST with the keyboard or mouse plugged in, but they can be used (and they are fully functional) if you plug them in later, after POST. On the POST side of things, it hangs when it shows the installed processor, and goes no further - pressing DEL to go to setup will not work. I've tried disabling legacy USB support as recommended, but can't find the option anywhere in the BIOS.

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• How to make OS X Mavericks Bootable USB flash drive

  - by James1

  i'm trying to make a bootable OS X Mavericks USB flash drive but cannot run the script. Visit this link: http://www.redmondpie.com/how-to-make-os-x-mavericks-bootable-usb-flash-drive-for-a-clean-install/ I followed the script and it fails, after you input the script, enter password then I got a message saying: You must specify both the volume and install application path. Now i don't know what to do. Please help guys!

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• Boot From USB Stick

  - by Nathan

  I formatted a 16 GB USB Stick today so I could boot from it and that works great. The problem I have is it won't let me copy a 7GB Ghost image over to USB, it says there isn't enough space. When I look Windows shows there is 14GB available. Can anyone give me some insight into this issue?

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• Ways to make USB Firefox faster

  - by MichaelKay

  I have several laptops so I use a USB key version of Firefox to keep my environment as I move around. I followed the suggestions offered on the Firefox web site (turn off the cache and history etc.) and its better but still much slower than the normal version. Other than buying a new, super fast flux-capacitor based USB key, what other tips and tricks can I use?

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