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• Lenovo tools for windows 7: can't re-enable wireless

  - by pcampbell

  Consider a netbook - Lenovo S10e with Windows 7 and the S10 Lenovo power management tools. Machine has factory BIOS. Fn+F5 is the key combo to toggle the wireless radio on/off. The tool allows the disabling fine; works as expected. The problem is that the re-enable doesn't work, or is confusing on how to re-enable. Previously tried without…

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• How to step down voltage from 208V to 110V

  - by Eric Dennis

  I have some racks that will be fed by 208V/20A circuits. These circuits will be conditioned and battery-backed by the facility in which these racks will live. 99% of the devices in the rack will be able to support 208V input, so I plan to use these PDUs. However, there may be one or two odd devices that will need 110V input. I know that I can…

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• What is this thing called?

  - by Portman

  (Original title: "WTF is this thing called?") I have a couple of networking components in my rack that take giant AC adapters ("power bricks") that don't fit neatly into my rackmount PDU. I have one "thingy" that is shown below, and I need to buy a few more. But I have no idea what I'm searching for because I don't know what the "thingy" is…

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• Why does my HDD produce a high-pitched noise when the CPU is in use?

  - by CyberOptic

  I know this is strange. Some time ago, I bought a new 7200rpm HDD for my desktop system (I'll look for the model later). Every time the CPU is used, a high frequency cheep comes from the HDD. I'm sure it's the HDD because the problem does not occur if the HDD is not attached or is in energy-saving mode (I cross-checked by booting from a live…

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• Ubuntu 13.10 has no Suspend or Hibernate Options

  - by Charlie Davies

  I have a Lenova Yoga 2 Pro, and I have Ubuntu 13.10 installed. I am having some issues setting the power functions. At the moment I can not suspend or hibernate the laptop. So from Gnome 3.10 I have the option to Log Out, Shutdown & Restart. No option for Suspend / Hibernate. Weirdly however I can use these commands to get the right…

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• Hooking up many different external HDs simultaneously

  - by cbizz

  I need a large amount of external storage for an upcoming project. I'm planning on purchasing 10 2TB external drives. I need them all hooked up to a single machine at the same time. What issues will I run into? I plan on using 2 power strips and having them all externally powered from the wall. I will use a USB hub to plug in all the…

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• PC reboots instead of shutting down, no software problem. What could be the cause?

  - by DaVinci

  Hi, first of all: I'm not sure if superuser is the right site for my question and google didn't help. I have a pc here that prefers rebooting to shuting down. Everytime I try to shut the pc down it reboots, however it is possible to turn the pc off by pressing the power button. The problem is not windows-specific, the Ubuntu LiveCD does…

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• How to force a hard drive to shut down

  - by Phenom

  I have a hard drive in my computer that I'm not using. I want Windows 7 to shut it down. I don't want to have to manually remove the cable. (The reason is that for some strange reason my computer will not boot if it's not connected. disk boot failure after upgrading power supply) I know that Windows 7 will shut it down after a…

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• Windows 7 - all usb devices go to sleep im idle mode

  - by dvdx

  A strange thing happened after a few updates to the system: Intel rapid storage SSD firmware update Intel Ethernet adapter update GPU Intel update When the computer turns off the screen (after 5 min), an unknown time later, all the USB devices stop working. Sound card Mouse Keybord etc. I can't turn them back on, so I…

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• Computer turns off unexpectedly

  - by Shahar

  My computer turns itself off unexpectedly after some time of use. It appears that this might be temperature related, but not for sure. I installed 2 tools that monitor temperature: SpeedFan and CPU Thermometer. The only definite finding is that there is a sensor (labelled temp1 in SpeedFan and CPU in CPU thermometer), which…

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• Ungrounded laptop (Macbook Pro) buzzes in headphones, weird feeling when fingers brush lightly

  - by donut

  I've got a nearly 3-year-old MacBook Pro 15" 2.16GHz (MacBookPro2,2). When I have am not using the extended, grounded adapter for the power supply, just using the simple, two-prong plug I can hear a buzzing when I use very sensitive earbuds. This goes away if I touch a metal part of the laptop. Also, I can feel a weird,…

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• How expensive to run PC 24/7 or how to figure out how to determine it?

  - by jasondavis

  I realize this question is difficult to answer as it would be different based on users location, what there PC is doing and what hardware it consist of, along with other factors but I am hoping someone could give me a very rough estimate. I have always ran many PC's in my home 24/7 and I am just now looking at it from…

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• PC shut downs automatically after 10-20 second. No POST screen, no beeps

  - by emzero

  I have this not-so-old computer that's not being used for a year or so. Specs: Motherboard: ASUS PN5-E SLI CPU: Intel Core2Duo E4300 RAM:2x2GB SuperTalent DDR2-800 VGA: Zogis GeForce 7950GT PSU: Vitsuba San-55-S 550w HD: No hardrives yet When I power on the computer, everything seem to start, but right away the…

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• Piecing together low-powered hardware for an RS-232 terminal server

  - by Fred

  I'm working on reconstructing my Cisco lab for training/educational purposes and I found that the actual terminal server I have is dead. I have a couple of 8-port PCI serial cards which would be more than ample for my lab, but I don't want to leave my personal computer running to be able to access the console…

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• Intermittent Trouble Entering Hibernate on WinXP

  - by kquinn

  My personal desktop, running 32-bit Windows XP SP2 (with 4GB RAM, 2.75GB addressable, swap disabled, hiberfil.sys existing and contiguous on C:\; SP3 is not installed because SP2 has been working fine and I do not want to re-qualify with SP3 just for sheer perversity) typically gets hibernated at night. For a…

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• PC dies when running at 100% CPU

  - by user155631

  I recently wrote some Java code to generate images of the Mandelbrot set (fractal). I made use of the new Fork/Join facility in Java 7 to run separate threads on all four cores (2 real, 2 virtual)simultaneously, using a large number of iterations for greater accuracy. The problem is, the process runs fine…

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• What's Keeping My Computer Awake?

  - by phantomdata

  First the question; How do I figure out what is preventing my Windows 7 computer from going into sleep mode? Second; some background... I've been struggling with this for a few days and am utterly perplexed. I setup sleep mode on my Windows 7 PC a few weeks ago, and all was well. The PC would sleep as…

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• What's Keeping My Computer Awake?

  - by phantomdata

  Hey guys, First the question; How do I figure out what is preventing my Windows 7 computer from going into sleep mode? Second; some background... I've been struggling with this for a few days and am utterly perplexed. I setup sleep mode on my Windows 7 PC a few weeks ago, and all was well. The PC…

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• Pc sometimes turns on sometimes not

  - by cprogcr

  Some time ago, the PC gave the same problem. It wouldn't turn on. When i pressed the button, it turned on but showed nothing. I had replaced the CPU and that seemed to work. I didn't use the PC that much, rarely you know. But now, after some time, it gives the same problem. It turns on, the front…

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• Computer will freeze/ lock up after doing relatively stressful things

  - by GrowingCode247

  I'll first start off by saying that the issue GENERALLY doesn't occur unless I'm doing something remotely stressful for my computer. This issue used to occur whenever it felt it was necessary, however has not occurred completely randomly for a while now (thankfully) My computer's specs: CPU: AMD…

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• Smart Phones Shockingly Energy Efficient; Lead to Decreased Household Power Consumption

  - by Jason Fitzpatrick

  Given how often our smart phones and tablets spend plugged in and topping off their battery reserves, it’s easy to assume they’re sucking down a lot of power. Analysis shows the lilliputian but powerful devices are surprisingly efficient and may be decreasing our overall power consumption. …

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• WM_POWERBROADCAST handler for CMainDlg in ATL app not invoked

  - by psychotik

  I have an ATL app where I want to handle WM_POWERBROADCAST. I have a CMainDlg (CAxDialogImpl) in whose MSG_MAP I defined the handler. BEGIN_MSG_MAP(CMainDlg) ... MESSAGE_HANDLER(WM_POWERBROADCAST, OnPowerChange) ... END_MSG_MAP() However, the handler isn't invoked when I do…

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• Calling via adb in Power shell

  - by Imran Nasir

  As you may know, the command for calling via adb is: .\adb.exe shell am start -a android.intent.action.CALL tel:"656565" This works well but when I use textbox, it takes garbage value... .\adb.exe shell am start -a android.intent.action.CALL tel:$textbox1.Text I have tried this…

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• Archlinux auto-start after I shutdown my computer

  - by madper

  every one. I'm in a big trouble. My computer (HP ProBook 4230s) has two OS----Archlinux and Win 7. When I use Archlinux, after halt my computer, it will start up after a while without press power. And there is an other thing. My computer's clock will be wrong. Many times I change it…

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• C# Winform : Deployment Problem after using DataRepeater of MS Visual Basics power pack

  - by Mohsan

  hi. Microsoft Visual Studio 2008 Service pack 1 comes with Visual Basic Powerpacks which has the DataRepeater control. I used this control in my c# winform application. in my system everything is running fine. now i copied the debug folder to other system which has only .Net…

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