Question about Dell Dimension 2400 PC Desktop

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Ports not working

None of my USB or keyboard or mouse ports are working. Windows boots up and shows the Ctrl-Alt-Delete screen but none of my ports work so i cannot use the mouse of keyboard. Just started this a few day ago.

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  • boharris Jun 02, 2008

    Sorry but i am running XP pro.

  • boharris Jun 02, 2008

    Reset button? Is there a button other than the power button on the inside? I have rebooted many times.

  • boharris Jun 02, 2008

    I have taken out the RAM and removed the CMOS battery. Still no luck with the USB ports.

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  • 55 Answers

You press the reset button from the pc by the time you restart it everything will be working properly

Posted on Jun 02, 2008

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Dell Dimension 5150. After bost my computer, I can the accounts icons on the screen, but I cannot slect the icon by mouse because all USB port did not work.


You can try this. On the log-on screen where you see your Account Icons try pressing ctrl alt delete. Some windows XP are configured that if ctrl+alt+delete are pressed on the lon-on screen the classic log-on screen window will appear, where you can type your username and password thus eliminating the use of the mouse.

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Try hitting ctrl-alt-delete exactly once bringing up the Windows task manager.

Click on "processes" tab.

Look for processes that are hogging the CPU. Check the "system idle" process and it should be around 90%. If it is way less as the thing starts to fail, find which of the processes is hogging the CPU. Analyze which and why. This could be a virus-like thing even or a "memory leak" where mermory is not properly returned to the available pool when a program terminates.

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Make sure that your keyboard is connected to the keyboard port of the switch. The USB ports on the switch has pictures that indicates where the keyboard and mouse should be connected.

The hotkey combination is CTRL + ALT + SHIFT + Port no.(1,2,3 or 4) + ENTER

Note: "tap the keys one at a time and not at the same time"

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sounds like a problem in windows may have to reinstall the os

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GCS632U is designed to work with standard USB keyboard an mouse only. You have to make sure that you are not using any type of adapter such as PS/2 to USB adapter. To further isolate the problem, please follow the steps below:

1. Connect the USB keybord directly to th computer to make sure that the keyboard is working properly.

2. Make sure that the keyboard is connected to the keyboard port on your KVM switch. You may take a look under neath this GCS632U (near the USB ports) and you will see an icon where to connect the keyboar and mouse.

3. If you're still gettings the same problem, Try power cycling this kvm switch by disconnecting if from the computers and disconnect also the keyboard and mouse from the KVM switch and leave them disconnected for a minute or two.

4. Reconnect everything after two minutes and then reboot the two computers.

5. If same problem exist, try using different USB keyboard.

NOTE: This KVM swith does not work correctly with wireless, gaming and smart keyboards because it's designed to work with standrd USB keyboard only.

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This is most likely a problem with the USB port you are plugging it into or a problem with memory - you could just be running too many programs simultaneously which causes everything to lag.

If it is a problem with your USB, try all other USB ports on your computer. If none of your USB ports are working and you have determined that it is not because of other problems like memory, you can get external USB expansion ports, which would plug into other ports on your computer.

To check if you are using too many programs, press ctrl, alt, and delete simultaneously to bring up the task manager. Click on the the Performance tab which will show you the usage of your computer's resources. If CPU usage or Physical Memory are near maximum capacity, you should click the Processes tab to see what programs are running and see if there is anything you do not need which can be shut down.

Another good tip to reduce memory usage is to download the free program Spybot Search & Destroy, which finds and removes harmful spyware, which can endanger your privacy as well as slow down your computer.

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Ports are usually labelled - look carefully.
Try manufacturers manual.
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I had this problem for a very long time as well. Turns out this is an encryption issue. It's off-balance. You need to reset the encryption, and here's how:

On the LEFT side of your wireless keyboard press and hold Ctrl+Alt, and press F12, then release all three buttons. Now push the Connect button on your Wireless Receiver, then the connect button on your wireless keyboard. Now press Esc. Try it. See if it works. It did for me.

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