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• MacBook Pro (2007 - ATI-Card) Screen goes half black then shuts down the entire computer

  - by BluePerry

  Hey, when I'm starting my MBP I get about 10-60 seconds of the booting process before the screen goes half black (Its like applying a black to transparent gradient from the left side of the screen to the middle of the screen). After a 5 seconds the entire screen blacks out and the MBP shuts down. There have been issues with heat and some minor artifacts on the screen in the past but nothing serious as far as I know. Everything could be resolved by rebooting or letting the MBP cool down a bit. I would like to identify the problem now. There are 3 possibilities I can think of right now: My graphics card is defect and shuts down after a few seconds. (But if thats true, I find it kind of hard to explain the HALF black screen) My LCD-Panel is defect and sends back wrong signals so the system shuts down??? (I not sure about that) My fan or/and thermal sensors are defect and forcing the graphics card to shut down. Can anyone point if I'm right or if there yet another reason for this. I'd be thankful for any hint or tips. Cheers, Per

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• Computer class or home teaching for kids?

  - by JMarsch

  I want to teach my son to be a strong PC user. I could try to strike out on my own for this, but I was wondering if there is a good online (or book based) course for this. Like most kids, he's proficient with Google, YouTube, and Minecraft, but he's very curious, and I would like to teach him more. Even some basic excercises, like working with the file system would be good for him (i would need some help to not make it boring).

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• CPU clock scales down so computer is unusable after switching to battery

  - by Ryan

  When I am plugged in my laptop runs great however when I unplug it and I'm on battery power my CPU clock speed scales down pretty much all the way. I know this is happening by monitoring the clock speed. When plugged in it will usually stay between 1000MHz and 3000MHz but when I unplug it it quickly scales down to less than 500MHz and will get as low as 100MHz and it will NEVER scale up at all on battery power. After I plug the power back in it will then begin operating normally in about a minute. I have tried setting the MIN and MAX CPU performance in power options to 100% and have tried messing around with cooling settings which seemed to be a problem with HP laptops. I have a Toshiba Satellite M500-ST6444 running Windows 7. The BIOS is up to date. I have tried two versions.

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• Program to set time on local computer using GPS data

  - by dmkerr

  I have a laptop running Windows XP that does not connect to the Internet and I would like to use a USB GPS receiver as a time source to set the clock. Generally, the laptop will not have access to the open sky so getting a strong, multi-satellite connection is not likely. Ideally, I would like to be able to have the program detect the GPS receiver and set the clock without intervention from the user. Is what I'm seeking even feasible?

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• safari 5 doesnt work on my computer.

  - by Amairani409

  I just got the new version of safari y downloaded because my mac tell me there was new version that I should be getting. but when I try to run my this new version of the aplication .nothing happends¡ I mean the program seems to be working but nothing apears in the screen and so when I try to see my top sites a little window show up but it just dont show anything. then 3 seconds later the program shut down¡ I dont know why is happening this Im not so a expert in computers but this really is away of all I see on safari and on mac I got Mac OS X version 10.5.8 2.66ghz intel core 2 duo 4gb 1067 MHz DDR3

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• How to install Windows with no CD drive boot option in BIOS?

  - by Kris Hollenbeck

  I have a new computer which I built from scratch and I am trying to install a copy of Windows Vista on it. I am able to get to the BIOS and change the boot options which are as follows.. -Built-in EFI Shell -SATA: ST31000528AS I have searched around for and everything I find says to boot from the CD rom. However, as you can see. That is not an option for me. So I am wondering if there is another way around this? Is it possible to boot the Disk from the EFI Shell? Any help is much appreciated. Thanks EDIT: I have tried this.. http://technet.microsoft.com/en-us/library/dd744321%28v=ws.10%29.aspx UPDATE: I managed to make my USB bootable via the BIOS and I have copied my windows Vista disk onto my USB via drag and drop. However I am still not able to get the windows install to start. Also I have tried booting it from the EFI shell using the following command.. blk6: blk6:\> \EFI\BOOT\BOOTX64.EFI Still no luck..

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• Move/migrate vbox virtual machine to another computer along with snapshots

  - by user53864

  I have sun virtualbox(2.2) installed on windows xp and I've some VMs(ubuntu server) running with many snapshots . How do I move virtualbox VDIs along with all the snapshots to new windows system?. I tried copying the base vdi and creating it newly on a new system and it worked fine but could not move the snapshots of the vms. I even tried copying Virtualbox.xml and machine's xml file to the new system and manually editing the snapshots location to the new place in the virtualbox.xml file, the snapshots are listed in the snapshots tab(but when I checked snapshots location in the vm's settings it's showing the default location having edited it) but when I try to use the snapshots, reverting to current, it's not booting(some snapshots giving grub 2 error, some got stalled at the boot). I also tried export and import but only current state I could export and use it on the new system with no snapshots. Is there any way I could achieve this?. Please need help...

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• Figuring out which PC part is faulty

  - by Davy8

  I have an odd scenario and I'm having trouble figuring out which is the faulty component. First of all, the video doesn't work, monitor says it's not getting a signal. Monitor's not faulty (works on other computer) so the first suspect was video card. However 2 things make me think it's not the video card. (Don't have another machine with PCIe around to test definitively) First, the GPU fan is spinning so it's getting power. Second, tried putting in an older PCI video card that is known to be working (pulled out of another working machine) and there's still no video. Normally if it's not the video card I'd suspect the motherboard, but everything's getting power on the mobo, so I'm not sure. The case apparently doesn't have system speakers, so can't hear any of the diagnostic beeps either. Also not sure whether a faulty CPU would cause no image at all either. The parts are brand new so something's going to get RMA'd but I'm not sure which component is to blame in this case. (Only slightly related, but I also accidentally put too much thermal paste on the CPU. The fan/heatsink instructions said to put the whole tube which seemed like a lot compared to previous experience, and as I started squeezing I knew it was definitely too much and stopped at about 1/3 but against my better judgement I didn't wipe any off. I'm not sure whether that would cause problems other than not cooling as effectively as it should)

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• Computer temporarily freezes and then resumes

  - by trizicus

  This happens on ALL operating systems (7, Ubuntu, etc.). What happens is everything for 1-3 seconds becomes unresponsive, I then hear what sounds like my other internal hard drive 'spinning up', and then viola everything is responsive again. Note: Already ran SMART tests, no issues at all. I think issue is that the HDD spins down and when need it gets 'turned-on' (OS settings turn off HDD's after 20 mins of inactivity) and because my pagefile is on the other HDD it causes OS to temporarily freeze. Need more tips, and insight. Thanks More info: Running Quad CPU, 4GB RAM, Intel SSD, GT 240.

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• Computer Invisible On Domain

  - by Giawa

  Good afternoon, I'm sorry that this isn't a programming question specifically, but stackoverflow has been great at answering questions in the past, so I thought I'd give it a shot. One of our Linux users attempted to install Cygwin on our Windows Server 2008 Domain Controller. Now it is no longer possible to browse the domain and see all of the computers. For example, \\my_domain_name will just bring up a username/password dialog box (that will not accept any username or password, even the domain administrator) and no computers will ever be listed. However, I can still connect to computers based on their name or IP address. So \\eridanus or \\192.168.1.85 still work to connect to the shared directories of computers on our network. Does anyone know where I can find these settings? and how I can fix this problem? Thanks, Giawa

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• error in computer: error(login): 0x10e0 the operator or administrator has refused the request

  - by user23950

  What would be the reason why this error is showing up? What will it do to the system. error(login): 0x10e0 the operator or administrator has refused the request

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• Connecting to SVN server from a computer outside of my LAN

  - by Tom Auger

  I've got a Fedora server running Subversion and svnserve on port 3690. My repo is at /var/svn/project_name. I have my router forwarding port 3690 to the local server (as well as port 80, 21, 22 and a few others). When I connect locally to svn://192.168.0.2/project_name it works great. When I connect from an external server to svn://my.static.ip/project_name I get a time out connecting to the host. However, if I http://my.static.ip there is no problem, so port forwarding is working (at least for port 80). I don't want to run WebDAV or svn via HTTP/s. I'd like it to work using svnserve, as documented in the svn book. What have I misconfigured? EDIT Here is the last part of my iptables dump. I'm not an expert, but it looks OK to me: ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:svn ACCEPT udp -- anywhere anywhere state NEW udp dpt:svn ACCEPT tcp -- anywhere anywhere state NEW tcp dpts:6680:6699 ACCEPT udp -- anywhere anywhere state NEW udp dpts:6680:6699 REJECT all -- anywhere anywhere reject-with icmp-host-prohibited EDIT 2 Results from sudo netstat -tulpn tcp 0 0 0.0.0.0:3690 0.0.0.0:* LISTEN 1455/svnserve

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• looking for the best power supply-- building computer--- [closed]

  - by fello

  What would be an appropriate power supply and form factor for those specifications below? CPU -Intel Core i7-950 Bloomfield 3.06GH Motherboard -- ASRock X58 Extreme 3 LGA ATX Hard drive-- Seagate Barracuda 7200.11 ST31500341AS 1.5TB 7200 RPM SATA 3.0Gb/s 3.5" Memory-- Kingston HyperX 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Processor---Intel Core i7-950 Bloomfield 3.06GHz LGA 1366 130W Quad-Core

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• Computer freeze at night

  - by matmat07

  Every night except one this week my laptop froze over night. I tried to check the event viewer, but there's no real help there. Tonight I'll do a memtest to check the RAM. And this shouldn't be a temperature issue since I can play game without any problem (Diablo 3, League of legend) Is there any diagnosys tool I could use. Maybe something that would write time down every minute so I know the precise time when it freeze? I have win7 and 8gb of RAM I installed myself Answer to comment:Asus N71JQ Unknown time, but it seems differents if I look at the last entry in the logs I have no information to tell you, that's why I ask for tool and not the solution. I usualy go to sleep after midnight, but I have AVG free edition as antivirus

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• Windows 7 RDP Problem - connecting to external zone with computer names

  - by alex

  I recently installed Windows 7, all is well so far, apart from using RDP to access computers outside my domain. We use a datacenter, outside of our domain. I was using Windows Vista before (not sure if this is relevant) - I could RDP no problem to the machines (using their machine names - Web10 for example) I have changed my IP address to be the same as it was when i was using vista We use a draytek firewall - we use DMZ Host to map my IP to an external ip- which is allowed to access the datacenter I've disabled windows firewall When i try to connect in Remote Desktop client, using Web10, I can't connect, however, if I enter the actual IP address, i can. I have run out of ideas... any help is appreciated!

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• Windows: make browsers do a DNS-lookup even when the Computer is offline

  - by leosok

  I use a local DNS-Server (MicroDNS) which I set via netsh to redirect any query to my own page. A little webserver running inside my software answering something like "this page is not whitelisted". It works when connected to the Internet but does not work when offline. The Browsers stop looking up the DNS. How could I make Browsers go to my page, whatever I enter in the address line, WHEN OFFLINE?

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• Recently reloaded computer, now have trailing effect when windows overlap

  - by Tony

  I recently did a clean install of my home machine and I am having a weird graphical error where if I move one window across the top of another it leaves a trail: I have the most recent NVIDIA drivers installed and nothing new is installed on my machine than before the reload (and I never had this issue before). I have two monitors and it happens on both so I'm sure it isn't a hardware issue (the card and my main monitor are also both less than 6 months old) I've also noticed a ripple when scrolling down on web pages which I believe is related. Any ideas what might be causing this and solutions to fix it?

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• Computer "Server"

  - by user328379

  so at home we had the idea of instead of buying 3 different pc's we would somehow create a "server" for the computers where a cable would come to our screens and keyboard and mouses, so the actual pc was somewhere else in the house with all the others. Does such a thing exist? And is it possible to have such a thing for high performance workflow? (Compiling, High-End Games, just as if it was a separate pc )

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• Computer slow after installing 32GB RAM

  - by John Gilmore

  I'm currently running very large network simulations for my PhD research, for which I need lots of RAM. I have a Core i7 2600K processor with a Gigabyte GA-Z68AP-D3 motherboard, running Windows 7 professional 64bit. I bought the system with 8GB (2x4GB) DDR3 1600 MHz Corsair Vengeance RAM and the system ran like a dream. I'm planning to upscale my simulations so I removed the 2x4GB RAM and installed 4x8GB DDR 1600 MHz Corsair Vengeance RAM. When I rebooted the system, boot time was much longer than usual (10 mins just to get to login screen). After logging in, the whole system was unresponsive. I tried playing some games (Bioshock 2), but it was unplayable. I've not had this problem before and I have an ATI Radeon HD 5850 graphics card, so that's not the problem. The only thing that's changed is the RAM. I've looked through the specifications of Windows, my motherboard and my CPU and they all state that 32GB of RAM is supported. Does anyone have an idea of what's going on? Any help would be greatly appreciated.

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• Can't see a Windows XP computer on the network

  - by user56614

  I have two PC's connected to the same router. One is running Vista Home Premium and the other is running XP Pro. I'm trying to reach the shares of second PC from the first PC. I've enabled file sharing on the XP PC, I've disabled firewall and defender, and I can successfully ping it from the Vista PC. Both computers are set to the same workgroup "WORKGROUP". However, if I try to type "\\192.168.1.2" in Windows Explorer (192.168.1.2 being the IP address of the XP PC), I get a message: "Windows can't access \\192.168.1.2... Error code: 0x80004005 Unspecified error". And If I type "net view \\192.168.1.2" in command prompt, I get "System error 53 has occurred. The network path was not found." Am I missing something trivial?

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• Computer wont start, just blinks on and off

  - by Ryan

  This is really strange. I had a comp that was working fine for over a year, then suddenly it started to shut off, it got so bad that I press the power button and in around 30 secs while booting windows it would shut off, then 20 secs... then 10 secs, then it refused to start all together. So I bought a new PSU (850w Thermaltake, the old one was 550w corsair) thinking that was the problem, I fitted the new PSU now and its the same thing, I press the power button and my fans start for a split second (they have led lights on them, so the lights come on) and then everything goes off again. I thought maybe it was my power button that was loose on my comp, luckily I had another chassis near by so I disconnected the powerSW from the old one and put ran the powerSW from the new chassis, press the power on the new chassis and same thing, it blinks for a split second and off again. Double checked connections from the PSU to the cpu power as well as board mobo power, its tight. It's pretty unlikely both the PSUs have the same exact problem so am lost... Suggestions?

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• Why can't I install MySQL on my computer?

  - by Bea

  I have read a lot of tutorials, but I am still having problems. What I tried: I downloaded mysql-5.5.9-winx64. All that I read says that I can run Setup.exe, but there is no such file in the download. The other option I know there is, is including \mysql-5.5.9-winx64\bin in the PATH variable and then trying to execute the mysql command. When I do that, the error I get is: ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost' (10061) I then downloaded mysql-5.5.9-winx64.msi, which is easier to install, but once I followed the instructions and it was installed, I got the same error executing the mysql command. How can I use MySQL? EDIT: I've now removed everything I installed, and I want to start from scratch.

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• How to unjoin the computer from domain in XP

  - by Master

  Initially i had joined my XP to domain. Now i have removed the OS with Domain COntroller. Now i want to join my xp to workgroup and when i do that it ask me for username and passowrd and then it says specified module does not exist Now how can i manually unjoin

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• Assembling a number-crunching computer [closed]

  - by tugrul büyükisik

  What is needed to make a GPU fully fed by CPU? Comparing their flops/s is enough? For example, if i could manage to make a very old(pentium-3) CPU with one of Nvidia-Fermi GPU, it would not be able to fed the gpu with data per sec. What is the criteria to fit CPU to GPU exactly when OpenCL or some similar work needed? Of course RAM and BUS will be chosen in a similar way but how exactly? Assume each GPU-core will calculate a sqrt and a division and an adding for 100 times for every itearation. Thanks.

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• Can't browse computer via nlb cluster name

  - by peg_leg

  I have a fileserver nlb cluster, currently set to single affinity, made up of 2 2008R2 servers. We switched the primary node today. Now our Windows XP workstations can't browse to the cluster name (i.e. \fileserver) but can browse to the cluster ip address (i.e. \192.168.1.1) and can browse the member server by name (i.e. \filesvr1). I remember having a similar issue when we had to change a registry setting to allow Windows XP boxes to see another file server that was in a failover cluster but had to be referred to by another name (\thisfileserver instead of \fileserver). Convoluted, for sure, but it helped to prevent any code changes from happening. Well all of the programmers have their code on \fileserver and we can't have them switch their links every time \filesvr1 supercedes \filesvr2 or vice versa. I can't remember that registry setting that allowed the file server to ignore that it's being called by the wrong name. HELP!

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