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• 3 wire computer fan won't run continuously

  - by Ben

  I had an old computer that didn't work anymore, so I took the CPU fan out to see what I could make with it. The fan is NMB model number BG0903-B044-VTL, like this. It has three wires coming off of it, red, black, and white. I know that the white wire is usually a speed sensor. Does this wire need to be connected to something in order for the fan to run continuously? Right now when I apply power to the red and black wires (from a 9-volt battery) the fan will spin very briefly, and then slow down until it stops. The fan's motor only spins in the instant that the power is turned on, but doesn't continue, even though the power is still applied. How can I get the fan to spin continuously?

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• Is really good have a big (500GB/1T) Hard Disk as main one!?

  - by aSeptik

  Hi All guys! ;-) i'm building my new PC so i'm starting the usual search for a good hardware/price around the net! but this time i'm not sure i want buy a big Hard Disk! i was thinking to have a "very small" HD like 50GB as main one and external (big) for store all other stuff! Assuming i'm using classic slow softwares like adobe suite (photoshop, flash, autodesk) and some very simple soft like notepad, php and so on...! do you think this is a good practice for improve performance/speed or i'm jast saying some stupid thing!?

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• Is really good have a big (500GB/1T) Hard Disk as main one!?

  - by aSeptik

  Hi All guys! ;-) i'm building my new PC so i'm starting the usual search for a good hardware/price around the net! but this time i'm not sure i want buy a big Hard Disk! i was thinking to have a "very small" HD like 50GB as main one and external (big) for store all other stuff! Assuming i'm using classic slow softwares like adobe suite (photoshop, flash, autodesk) and some very simple soft like notepad, php and so on...! do you think this is a good practice for improve performance/speed or i'm jast saying some stupid thing!?

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• Windows 7 Taskbar resets on every login

  - by Arne Mertz

  I like to reorder my Taskbar a bit, other than the Windows 7 default is. I use two "rows", the lower is for quicklaunch and other toolbars: This works perfectly, as long as I don't log off from the computer. Every time I log in, Windows 7 has messed up/reset the toolbar positions like this: So I have to drag them into position again and again, every morning. Fixing the taskbar positions won't help, I tried to google for the problem but it does not seem to be very common. Does anyone recognize that problem and has a solution? Update: This is not the AutoLogon bug. AutoLogon is off. We have installed Novell at our company, and it does not matter wether I log directly onto the Novell network or only to the computer first and to Novell later. Update2: I get the same issue when I logon without Novell, i.e. when I log on only to the computer. When I boot in safe mode, the taskbar looks essentially the same: Update3: KB979155 says it's "not applicable to my system". Creating a neew user is not an option since I don't have the admin privileges to do that - I have almost any other local admin privileges, though.

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• users connecting to remote desktop to use software

  - by Jordan

  Im an IT assistant at a CNC milling company and we use a program called made2manage. Its an ERP (enterprise resource management) software. Each license is something like 5k and instead of giving each employee there own copy of the software he has everyone that uses the program connect to a server that has a copy of m2m on it. Its slow when there are a bunch of people connected to it. But I guess they dont want to buy more licenses. Is there a better way to do something like this? How bad of a practice is this?

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• "System call failed" error when trying to open "My Computer" etc. under the Start menu! What is happening?

  - by verve

  When I go to the start menu I can load program icons but if I click on Documents, My Pictures, My Computer, Default Programs...all the options on the right part--I get "System call failed". How do I solve ths? Is my HD failing? Also, I don't know if it's connected but yesterday my uTorrent stopped working in a way it has never done before. I'm not able to download torrent files. In the program I get "socket unreacheable..." Also, for the last 2 days my internet has been super-slow. I checked Kaspersky for viruses. It says: "No active threats". Windows 7 64-bit.

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• fastcgi-mono-server with Nginx is much slower than xsp4

  - by marxin

  We started testing our MVC4 app on xsp4 server compiled with mono-3.0.3, speed was enough and we decided to set up production fastcgi-mono-server4 (version 2.11.0.0) with nginx (1.2.6-r1). Single query that loads some JSON query took ~200ms on XSP4, but Nginx serves the query in about 1.2s and I am wondering where could be such a slow down? I followed nginx configuration: http://www.mono-project.com/FastCGI_Nginx and fastcgi-mono-server4 uses socket for listening nginx. Do you have any ideas how to log some time stamp which will help me? Thanks

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• Avoid cache overflow in Atempo LiveBackup

  - by Vebjorn Ljosa

  When attempting the initial backup of a new client, Atempo LiveBackup seems to require a very large cache. For instance, a 20 GB cache is not enough to back up a computer that has 100 GB of data. It appears that LiveBackup is adding new files to the cache at a faster rate than it can send them to the server. When the cache fills up, the backup fails. Aside from removing most data from the computer and then add them back gradually after the initial backup, is there a good workaround? Is it possible to make LiveBackup slow down its scan so as to not fill the cache? Or is it possible to place the cache on an external drive?

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• How do I improve picture quality while streaming live football (soccer) from my Dell D600 to an HDTV?

  - by Bob

  I have fibre broadband with speeds up to 38mbs, my Dell D600 has its max 2gb ram and has an ATI Mobility RADEON 9000 4xAGP 32mb card in it...Its TV support it says is NTSC or PAL in S-video and composite modes with a 7-pin mini-DIN connector (optional S-video to composite video adapter cable) and a vga port which i am using at the moment... The laptop runs Windows XP, an 80g HD with only windows + necessary updates and anti virus software on it..... There is HDMI on the TV, but not the laptop Fairly slow moving and close up pictures arent too bad, but when the movment is fast(a shot on goal) or in the distance, I cant see the ball and the images go out of focus.

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• Server downtime - are these APC warnings the cause?

  - by DisgruntledGoat

  Yesterday I had a problem with my dedicated server (Ubuntu 10.04, LAMP). It wasn't down per se, but running incredibly slowly as if we had a massive overload of visitors (though I don't think we did). It's running smoothly again now. I've been checking through log files etc to see if I can find any issues, the only strange thing is a bunch of these errors, occurring at about the same time as the downtime: [apc-warning] Unable to allocate memory for pool. in [file] on line 49. And a bit later on: [apc-warning] GC cache entry '[file1]' (dev=2056 ino=8988092) was on gc-list for 3601 seconds in [file2] on line 746. Could these errors indicate the cause of the server slowdown, or are they simply a result of the server being slow in the first place? What would be the solution?

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• How can we tell what driven the Private bytes spiking.

  - by ronin

  I have websites running on .Net Framework 2.0 environment. For recent every day my website becomes slow at certain time and I need to recycle my app pool. I checked the log file found that the private bytes will spike during that time slot. Through some research I already know that the managed code and unmanaged code consists of Privates and we can identify which one cause the spike based on "Bytes in all heaps" counter. But I can't find a way to dig deeper. Is there any way that I can find out what driven my private bytes spike? How can we see what the private bytes are being used for? Thanks, Ronin

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• Slowness on Exchange 2007 Server (network related we think)

  - by Az

  We are seeing some odd behavior out of our exchange 2007 server. I believe it is network related as during the slowness in response from the exchange server. During these times downloading files to server is fraught with connection resets and extreme slow download speeds that are not affecting other servers right on the same subnet with the same gateway and ISP. We have about 50 users at a time using Outlook 2003 from a terminal server not displaying any other signs of slowness, all network slowness is confirmed trying downloads on the exchange server itself. Checked for virus issues, there are none. Checked for hardware issues, none found I am noticing between 200-400 TCPv4 connections established I am seeing around 100k tcpv4(active) connections according to perfmon are these numbers odd? Has anyone run into anything similar? Our server has a gigbabit NIC linked to a gigabit switch using cat6 so I do not believe it is "physical". Thanks!

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• Rate of UDP packet loss over WLAN

  - by Martin

  While testing something with TFTP I noticed lots of timeouts (and slow speed as result) when I used my WLAN - and no problems when using a network cable. A quick test program sending/receiving UDP revealed that there are about 3-5% packets lost. While it's obvious that WLAN has to be less reliable than LAN, I have no knowledge what loss rates are considered 'normal' - and when there is a need to further investigate the network infrastructure. Are there 'typical' packet loss rates on WLAN (and other network technologies e.g. PowerLAN, WAN, ...? Thanks

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• Video problem with Windows 7 Games

  - by Jordan 1GT

  I have a Dell xps M1330 which originally ran Vista, but I upgraded to Windows 7. When I try to run a Win 7 game like spider solitaire I receive the following message: "The game is running in software rendering mode. Hardware acceleration is either disabled or not supported by your video card driver which could slow down game performance. Make sure you have the latest video card driver installed and that hardware acceleration is turned on." I confirmed that hardware acceleration is turned on. When I go to Dell's site, I'm told there is no later video driver. When I run the game it runs very choppy. I wouldn't care, but I loaded a .pptx file which is doing strange things in normal view and I suspect may be related to the same video problem. Any ideas?

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• Install ubuntu on MacBook Pro

  - by n179911

  Hi, Can you please tell me what is the preferred way to install Ubuntu on MacBook Pro? I have a MacBook Pro with MacOSX 10.5. I need a Linux environment some times. So what is the best way to achieve that? 1. Make it dual boot? (but I don't know if that is possible with MacBook) 2. Install Virtual Box and then put Ununtu on top of it? (But I am not sure if this configuration will be slow, so I need a Linux environment for coding, so it needs to do compiling and debugging and stuff). Thank you for any tips.

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• Remotely running batches on a Windows PC

  - by Eduardo León

  I want to remotely control my home desktop PC (running Windows 7 Professional), mainly to perform the following tasks: Downloading email attachments, and sending emails with attachments Running UI-less programs whose only inputs are files and whose only outputs are files So far, the only solution I have found is to use Remote Desktop to connect to my PC, but this is very slow and inefficient, especially when there is no fast Internet connection available other than my cell phone's. I would like to be able to send batch commands to my PC, like: Download an email attachment Use it as input for an UI-less program Save the program's output to a file Send that file to myself as an email attachment Is this possible? How could I do it?

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• Justification of Amazon EC2 Performance

  - by Adroidist

  I have a .jar file that represents a server which receives over TCP an image in bytes (of size at most 500 kb) and writes it file. It then sobels this image and sends it over TCP socket to the client side. I ran it on my laptop and it was very fast. But when I put it on Amazon EC2 server m1.large instance, i found out it is very slow - around 10 times slower. It might be the inefficiency in the code algorithm but in fact my code is nothing but receive image (like any byte file) run the sobel algorithm and send. I have the following questions: 1- Is it normal performance of Amazon EC2 server- I have read the following links link1 and link2 2- Even if the code is not that efficient, the server is finally handling a very low load (just one client), does the "inefficient" code justify such performance? 3- My laptop is dual core only...Why would the amazon ec2 server have worse performance that my laptop? How is this explained? Excuse me for my ignorance.

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• How computers display raw, low-level text and graphics

  - by panic

  My ever-growing interest in computers is making me ask deeper questions, that we don't seem to have to ask anymore. Our computers, at boot, as far as I understand it, are in text mode, in which a character can be displayed using the software interrupt 0x10 when AH=0x0e. We've all seen the famous booting font that always looks the same, regardless of what computer is booting. So, how on earth do computers output graphics at the lowest level, say, below the OS? And also, surely graphics aren't outputted a pixel at a time using software interrupts, as that sounds very slow? Is there a standard that defines basic outputting of vertices, polygons, fonts, etc. (below OpenGL for example, which OpenGL might use)? What makes me ask is why OS' can often be fine without official drivers installed; how do they do that? Apologies if my assumptions are incorrect. I would be very grateful for elaboration on these topics!

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• MacBook Pro USB port provides more current in Mac OS X than in Windows

  - by AngryHacker

  I have a MacBook Pro with both Mac OS X Lion and Windows (under BootCamp) installed. While in Windows, I tried to charge my iPad 3 via the USB port. The iPad says "Not charging", but really, it does, just super slow (4-5% per hour). The reason for this is that the iPad requires 2.1 A of current, but a standard USB port provides 0.5 A. However, if I switch to Mac OS X, the iPad states that it is charging and it does at a rate of about 10% per hour. The only takeaway from this is that either OS X puts out more current on the USB port or that it recognizes the iPad and acts accordingly. Can someone provide more information on what is actually happening?

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• PHP processes run one at a time, always taking 100% of one core

  - by Derek Kurth

  We have seven websites written in PHP running on a Windows 2008 server with IIS 7.5. They are all very slow right now. When I look in Task Manager, I see around 10 php-cgi.exe processes, and they are all taking 0% of the CPU, except one, which is taking 25%. It's a quad-core server, so it's taking 100% of one core. If I watch for a few seconds, the process taking 25% will go to 0%, and a different php-cgi.exe process will jump to 25%. So all the php-cgi.exe processes are just lined up, waiting on a single core, and each process uses 100% of the processor when it can. Each of the 7 sites is in its own application pool in IIS, and we're using FastCGI. The PHP version is 5.3. Any ideas? Thanks!

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• How to allow simple file sharing on Windows Server 2008R2 through VPN

  - by Martin Wiboe

  We are a small, distributed company with a Windows Server 2008R2 installation. I would like to set up a way for our employees to connect securely to this server via VPN and then be able to map a network drive. I have gotten this to work somewhat by installing the Network Policy and Access Services Role on the server and using the default settings. I have also created a network share on the server. The problem is that our connectivity is sporadic (sometimes the service stops listening on the port or simply refuses to authorize correct credentials) and slow. I can always connect through VPN, but mapping is problematic. I would be grateful for the answer on how to accomplish this as well as some guidance on whether I am on the right track. Thanks in advance!

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• server performance metrics report and practicality

  - by Anjesh

  I have a need of preparing web server (apache-php) performance report containing important metrics like CPU usage, disk io, memory usage on user basis. Couple of domains are hosted in the same server and they run from separate users using fcgi. The reason being sometimes some hosted applications take lots of cpu usage, making the server slow for other applications (running as separate users). i am planning to develop scripts for this, as i can't seem to find any simple utilities for this purpose. This script will take snapshots of the user wise metrics at defined periods say 15 minutes and record it. Any abnormalities will be reported via emails. How practical is that? also would be interesting to know what else need to be recorded.

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• printer assignments for windows xp workstations within an active directory environment

  - by another_netadmin

  I'm using the following script to handle removing any old networked printers from machines and then assigning the propper ones and making one of them the default. This script is assigned to the OU the workstations reside in and uses group policy loopback so all users that login will get the appropriate printers mapped for them. I tried to use the new Printer Manager as part of W2K3 R2 but when assigning the default this way I get an error that the printer doesn't exist so I'm back to using the script. One flaw that I'm noticing is that it won't remove any printers that happen to be mapped from an RDP session (we don't see this everywhere but there are a few locations). Is there any way to enumerate all RDP printers and remove them similar to how I'm enumerating and removing networked printers? ' ' Printers.vbs - Windows Logon Script. ' RemovePrinters AddPrinters Sub RemovePrinters() On Error Resume Next Dim strPrinter Set objNetwork = WScript.CreateObject("WScript.Network") Set colPrinters = objNetwork.EnumPrinterConnections For i = 0 to colPrinters.Count -1 Step 2 strPrinter=CStr(colPrinters.Item(i+1)) If Not InStr(strPrinter,"\\") = 0 Then objNetwork.RemovePrinterConnection strPrinter, True, True End If Next End Sub Sub AddPrinters() On Error GoTo 0 Set objNetwork = CreateObject("WScript.Network") objNetwork.AddWindowsPrinterConnection "\\printers1\JH120-DELL5310" objNetwork.SetDefaultPrinter "\\printers1\Jh120-DELL5310" End Sub

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• Best way/format to convert a PDF to be able to read on android?

  - by stirredo

  I have a pdf ebook, a Technical book that conatins a lot of code. Reading it as pdf is slow plus reflowing text in the pdf reader removes all the formatting. I tried converting it to epub using calibre but that too removes all the formatting. The only pleasant experience I have had reading a technical book on my phone is as chm but I can't find anything to convert pdf to chm(Found a couple of softwares but that didn't do a good job). Has anyone had successfully experience in reading a technical pdf ebook on a android phone?

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• How to search for a folder from the Windows 8 Start screen

  - by Edward Brey

  In Windows 7, if you press the Windows key and type the name of a folder, and the folder shows up among the Start menu search results. In Windows 8, if you do the same thing, no folders are listed. The Files filter shows files with matching names, but no folders. I realize that you can still search for folders from the Windows Explorer search box, but navigating that way is a bit slow and clumsy. Is there a quicker way, in particular a way to search directly from the Windows 8 Start screen?

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