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  • How cpu writes data to dynamic RAM

    - by Krit
    Hello, I would like to know what kind of electrical signals does a cpu send to a dynamic RAM when it wants to write one bit (a 1 or 0). Is it simply that cpu sends just a single electric pulse, and if that electric pulse's voltage is higher than a certain level, it charges the capacitor to a voltage level that is "1" and if it is at a lower voltage band, it charges capacitor to level that it is "0"?

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  • Laptop Battery Diagnostics Software?

    - by Wesley
    My Compaq CQ50-215CA laptop with Windows 7 Ultimate RC 32-bit recently told me to replace my battery for fear of sudden shutdowns. Is there any good diagnostics software that anyone has used to test for battery condition and max. life? Also what are good practices for keeping maximal battery life? Thanks.

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  • Removing the password from a PDF file

    - by Alister
    I have a couple of ebooks as PDFs with passwords, however my ebook reader (sony prs600) doesn't seem to support PDFs with passwords. What is the easiest of removing the password from a PDF (I know the password, which presumably helps a lot). It's a bit annoying buying a book and then only being able to read it in front of a computer.

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  • How to disable my netbook's touchpad when a usb mouse is connected.

    - by overmann
    This is the first computer I have ever bought and I couldn't bring it home without a mouse of its own. I'm trying to disable the touchpad but the only option I find is by uninstalling the drivers, which I think is a bit drastic, the buttons for activation and deactivation are disabled (I'm using windows 7 starter). Do you have any idea of how to disable the touch pad when an external mouse is hooked up?

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  • Nokia PC Suite hangs at installing required drivers and doesn't connect to phone

    - by SpongeBob SquarePants
    I am unable to connect my Nokia 2690 to my PC via data cable using Nokia PC Suite under Windows XP SP3 Pro 32 bit. Every time I connect my mobile using the data cable, the Nokia App shows a window where it says it's "Installing the required drivers. Please wait". But even after several hours my phone never conects to my PC and the screen remains there idle. I checked in he task manager, Nokia PC Suite didn't go unresponsive.

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  • What is a good lightweight webradio program

    - by Robert Vukovic
    I am currently using Screamer Radio but it is a little bit buggy. It freezes a lot if internet connection is bad and can not continue if there are interruptions in the internet connection. I am not interested in some full sized MP3/media player, just a simple (with low memory footprint) application that can play streaming internet radio stations.

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  • After returning from standby mode, win7 asks for login twice

    - by Force Flow
    When a Windows 7 32-bit PC attached to a domain comes back from standby mode and has no user logged in, if I log in once, it jumps back to the login screen. If I log in for a second time, then it actually logs in. This happens on multiple PCs, and is not a hardware issue. The PCs are also free of viruses/malware, and are otherwise problem-free. Why does it do this, and is there a way to prevent this annoyance?

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  • apt-get commands pausing at 'Waiting for headers'

    - by Matt
    I have a VM running Ubuntu Server 9.10 running a basic web server setup. Whenever I run an apt function it will pause for around 1 minute at 'Waiting for headers...'. It will eventually clear through and continue as normal but it is a bit of an annoyance. Everything else on the server seems to run fine. Any ideas?

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  • Two Raid-1 arrays in a single system?

    - by DebAtCQ
    I'm building a Raid array for the first time in my system and I have a question regarding having multiple Raid-1 arrays in a single Win 7 system. I'm a bit of an organizational freak with my data and I currently have two separate hard drives I want to mirror. The new motherboard I'm looking to buy supports Raid, so my questions are: Can I have more than one Raid-1 array in a single system? Would I have to buy a separate controller for the second array?

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  • are you supposed to be able to "ping" specific pages of websites, or just the domain name?

    - by Bec
    (sorry, i think my jargon is a bit off there, not sure) I'm trying to work out what's going on with my podcasts not downloading properly, to see whether it was my pod-catching software or the connection i tried doing a ping on the podcast URL e.g. www.abc.net.au/rn/podcast/feeds/ockham.xml and it failed (i got "could not find host"), it works for the first part of it though www.abc.net.au I can get to the xml page in a web browser though, and ping doesn't work on the podcasts which have been downloading right either.

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  • Network folder image thumbnails taking long time to load

    - by Steve
    Our internal network folder can take up to 5 seconds to generate a thumbnail for each photo in a network folder. Usually, only 10% of thumbnails actually display; the rest are default jpg icons. A thumbs.db file already exists inside this folder, so presumably the thumbnails have been generated before. Why do they have to be generated again? The PC is Win7 64-bit. The server is Windows 2003 Server SP2.

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  • Cisco 1841 and routing /29 address

    - by Jonathan
    Could someone please explain in general terms how I'd configure a Cisco 1841 (2x ethernet ports) to route a public /29 address block (6 hosts) to my internal network. I wish to give the Cisco router one public IP and then several of my internal Windows servers will receive the other public IP addresses. Other hosts behind the router will access Internet via NAT. I'm a bit confused as I've only ever setup routers/firewalls that had a single public IP address with NAT and port forwarding to internal servers.

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  • backup aws ec2 to separate account

    - by Paul de Goede
    I want to backup my AWS snapshots to a completely separate AWS account for additional security (if my AWS credentials were acquired someone could delete all my snapshots and volumes). But I'm a bit stumped on how to do this. There doesn't seem to be a way to store a volume or snapshot in S3 such that another user could access that data in s3 and store it in a separate AWS account. Does anyone have any suggestions on how to acheive this? Thanks

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  • Black Screen After Sleep (Win 8)

    - by Mark
    I have an SSD only, Intel HD Graphics only, Ultrabook running on Windows 8 64-bit and after I turn it back on, after a long sleep of a few hours, the screen remains black even though the power is on (the fan and keyboard backlight are on). I have to force a shut down and switch it back on to use it normally again. Hibernation and hybrid-sleep are turned off. It comes out of sleep of less than an hour just fine. Any advise? Mark

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  • Monitor not displaing windows 7 correctly

    - by rdt
    I have just got a 15" Digimate TFT LCD monitor. I'm running Windows 7. Now the icons are too big, as are the windows in both browsers and word processing software - and everything has a bit to the left cut off, so for instance I can no longer see the back button in Chrome. I've tried looking at the resolution and adjusting the monitor settings, but no luck. I've also tried updating drivers, but can't find any compatible ones.

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  • How to prevent virtual machines's copy

    - by Florent
    I'll have to deploy virtual machines on demo laptops, which will use Vmware player, but I've got some security concerns, as some data stored in the virtual machines are a bit sensitive. Is there a way to prevent the copy of these virtual machines ? Are the virtual hard drives encrypted, and if not is there a way to encrypt them ? In short, is there a way to lock down everything so that nobody could copy and or use these VMs in another computer ?

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  • How much memory do I need for innodb buffer pool?

    - by Shirko
    I read here that You need buffer pool a bit (say 10%) larger than your data (total size of Innodb TableSpaces) On the other hand I've read elswher that innodb_buffer_pool_size must be up to %80 of the memory. So I'm really confused how should I choose the best size for the pool. My database size is about 6GB and my total memory 64GB. Also I'm wondering if I increase the buffer pool size, I should shrink the number of maximum connections to make room for extra buffer, or these parameters are independent. Thanks

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  • Alternative to MS Dynamics CRM 4.0?

    - by Trondh
    hi, A customer of mine have been testing a trial of MS CRM 4.0 that I installed for them, but they concluded that it might be a bit heavy for them. I promised them to look into other CRM applications that use SQL Server as the backend and preferably has an Outlook plugin so you can do "CRM Stuff" directly from Outlook. If anyone knows about alternatives, I would appreciate it if you leave a link here!

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  • Not able to connect to game using "Game Ranger"

    - by Daud
    Every time the game is about to start it says that I have lost my connection to EA's servers with the following message: Make sure your network adapter and network cable is plugged in. Although my connection works perfectly but when it comes to online gaming it messes up everything. My System specifications: Intel(R) Core(TM) i5-2410M CPU @ 2.30GHz 4096MB RAM Windows 7 Ultimate 64-bit Internet connection of 2Mbps Can you help me to sort it out?

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  • How to run Tunderbird 3 on Ubuntu

    - by Dasoal
    Hi guys, This is a bit of a silly question, how do I run Thunderbird 3 which I downloaded? Well, I can get it to run by executing the 'thunderbird' shell script file. However that creates a terminal windows aswell and will close Thunderbird if it is closed. How do I get it to open without the terminal? Thanks.

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  • What is the probable failure - no BSOD, no event log, monitors sleeping, force reboot required

    - by Tyler
    Every 3 to 15 days, my PC freezes. This typically happens when the computer is idle, I'm coming home from work, back from vacation, etc. It's never happened while using my computer. The monitors are in power save mode The Caps Lock light on the (wireless) keyboard doesn't work Ctrl-alt-del has no effect, mouse (wireless) has no effect The hardware reset button and single press of power putton have no effect Computer does not appear on the network No BSOD, no memory dump Event logs have no errors or indications of problems near the time of crash. Only messages after reboot indicating that there was a reboot without a clean shutdown. Windows is set to never put the computer to sleep (just the display) Here are the vital stats of the build: OS Windows 8 Pro 64-bit CPU Intel i5-2400 Mobo Intel BOXDP67DE Micro ATX GPU MSI N460GTX Cyclone768D5/OC RAM CORSAIR XMS3 8GB (2 x 4GB) CMX8GX3M2A1333C9 PSU SeaSonic X Series X650 Gold System Drive Samsung 840 Pro 256 GB SSD Data Drive 2 x Western Digital WD20EARS 2TB in hardware RAID 1 Optical Lite-On DVD burner IHAS424-98 And here is the story of how the problem developed and what I've done to diagnose: January 2011, system built with Windows 7 64-bit, runs great. March 2011, Intel replaced the mobo because of the bad sata controllers. October 2012, upgrade to Windows 8 (problems start shortly after). January 2013, system freezes and causes network to fail for the whole house. Unplug the network cable and other devices and PCs can use the internet. Plug it back in, internet goes away for everyone. Reboot and everything is fine. March 2013, install Intel Gigabit CT PCI-E NIC, disable mobo nic in bios. Network strangeness goes away. Freezes are less frequent. Memtest shows no problems (20 passes). Early June 2013, replace Antec PSU with SeaSonic PSU. Mid June 2013, replace OCZ Vertex 2 SSD with Samsung SSD. Late June 2013, get frustrated and hope the community has some good ideas (I'm running out of budget to replace parts). My next plan of attack is setting "Turn off display" to Never and using a screen saver to see how that reacts on the next freeze. It makes me sad to waste power for up to 15 days though. Has anyone out there seen a problem like this? Any ideas on what kind of malfunction would act this way? Ideas of other diagnostic steps to take?

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