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I recently rebooted my dell optiplex 745 with the reocvery cd. now that it is working again, i can not connect to the internet with my computer. everything from before works fine(wireless connection still there connecting my labtop/ps3) but there is no internet connection to my desktop. i have made sure, all the plugs are in, and i even recycled the modem.

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I have a dell optiplex 745 and the light on the power button flashes orange when power is connected


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Apr 04, 2013 | Dell OPTIPLEX 745 PC Desktop

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My dell desktop asking for a password


If you want to create a new Basic Input/Output System (BIOS) password on a Dell Optiplex 745, reset the password. Resetting the password also applies if you want to remove an existing BIOS password. BIOS passwords are used to add an additional level of security to your machine. Without the correct BIOS password, your Dell Optiplex 745 will not complete the boot process. The password can be reset whether you know your current password or not.

Turn off your Dell Optiplex 745. Start the computer. Press "F2" the moment the Dell logo appears on the screen. You will only have two to three seconds to press the key. Enter your BIOS password. Navigate to the "Exit" screen. Select the "BIOS Password" setting. Enter your BIOS password and a new password if desired. Do not enter anything in the "New Password" box if you want to remove the BIOS password completely. Press "Enter" to save your password settings. Reset Forgotten Passwords Turn off your Dell Optiplex 745 and remove the power cord from the computer. Disconnect any external hardware and cables. Slide the release latch located on the back of your Optiplex 745. Lift the cover as you slide the latch. Hold the cover firmly and pivot it back on the hinges. Remove the cover from the hinges. Find the "PSWD" jumper on the motherboard. This is a two-pin jumper and should be clearly labeled. Use a flashlight and magnifying glass if you have trouble locating it. Remove the jumper from the motherboard. Replace the cover and slide it into place until the latch snaps into place. Reconnect the power cable and restart your computer. Shut down the computer after it has completely restarted. Disconnect all cables and remove the cover again. Replace the PSWD jumper. Replace the cover. Reconnect all cables and restart your computer.
b> Clearing forgotten passwords http://phubner.eng.ua.edu/Files/Optiplex 745/advfeat.htm - wp1117484

Mar 20, 2013 | Dell OPTIPLEX 745 PC Desktop

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Dell Optiplex 745 having all kinds of problems getting blue screens, but I can reboot and it works fine. I installed a new hard drive on this computer. I am not able to install the update for windows xp...


Hello,

The main failure on the Optiplex 745 units are capacitors on the motherboard. When they fail you can get all sorts of strange problems - no boot, blue screen issues, no video or distorted video. Open your machine up and look for bulging capacitors on the board. Here is a link to a guide showing what to look for on the motherboard to determine if your problem is capacitor related or not.

http://www.ccl-la.com/blog/index.php/dell-optiplex-745-repair/

If you do find bulging capacitors on the motherboard then more than likely that will be your problem. You can replace the capacitors and your board will be as good as new.

I hope this helps, if so please rate my solution.

BuddyMc

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