Dell OptiPlex SX280 PC Desktop - Answered Questions & Fixed issues

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Check if you have proper Ethernet Card Drivers If you are connecting via modem check drivers for the same. please have a word with you Internet Service Provider. Let me know what happens

go to the start menu choose run if you don't see run hold windows key down to the left of the spacebar then press r key. Fill in msconfig click on boot.ini make sure safe mode in unchecked Terry

The Chromebook has a wireless network interface. So, it does not connect to your computer. Instead, it connects to your wireless router. If you do not remember that password for your wireless network, you need to "reset" your router to its "factory-settings", and then recreate the name of your wireless network, and enter a new password, to define it.

A jumper.

You've got your speaker wires on the wrong pins on the MB.

Desktop computers do not usually have a wireless card installed. They will have a built-in LAN card that uses a LAN cable.
If you want to connect your computer using a wireless connection then you will need to install a wireless card in your computer and configure it to communicate with your wireless router.
Otherwise you can connect to your wireless router using a LAN cable.
Your wireless router may have built-in LAN ports and you can connect your computer to the wireless router using a network cable.

If you tried to install a BIOS up-grade and it failed, then your motherboard is toast.

Get a VGA converter adapter plug.

There is a heat-sink that is attached to the video chip on the motherboard. The restraining clap that holds it in place is probably detached.

on which machine have you checked the drivers

Lite on it CD/DVD Rom or Just a DVD Burner: Lite On It is your best bet

For Windows XP drivers, the last supported through Dell, try one of the three listed here: http://www.dell.com/support/drivers/us/en/19/product/optiplex-sx280 Change the Operating System to "MS Windows XP" and the Category to "Video". This discussion suggests that Windows Update will get you working drivers after a Windows 7 install: http://en.community.dell.com/support-forums/peripherals/f/3529/p/19329672/19807012.aspx

1) Tell them to be quiet. The kids are sleeping.2) Promise them a nice quiet vacation in the Bahamas, if they will just be quiet for now.3) In a firm voice tell them that they CAN be replaced.OR,1) Suggest you replace the Thermal Paste on the Processor.It has dried out.2) Also clean the inside of the computer out. Suggest it is dirty inside.(Wuz trying to just be funny................Alan?....................Alan?)The top of a Processor (CPU), and the bottom of the fined Heatsink that sits on it; are not perfectly smooth.A magnified view would detail, 'Ridges, Valleys, and Pitholes'.When the two parts are mated together, Air Pockets are created.Air is an Insulator in this case, Not a Conductor.Thermal Paste fills the above imperfections, and is an Excellent conductor of heat.Thermal Paste dries up over time. Looses it's thermal conductivity properties.It's cheap in cost.Can guide you step by step in replacing the Thermal Paste, and also cleaning out the inside of the computer.Post back in a Comment.Regards,joecoolvetteA) Dell Optiplex SX280 User's Guide (1668KB)http://www.dell.com/support/Manuals/us/en/19/Product/optiplex-sx280[How to open the computer case - Adding and Removing Parts > Removing the Computer Cover.Adding and Removing Parts > Processorftp://ftp.dell.com/Manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-sx280_user%27s%20guide_en-us.pdf ]B) http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3071621&CatId=503C) http://www.hardwaresecrets.com/article/274

Fans working? Maybe a PSU failure? Replace CMOS Battery. Reseat/replace Memory Mods. It's getting a bit old. Hard to say with a older computer thing start to go one by one. I replaced a PSU after 7 years. CMOS battery dead, replaced, Then the Sound Failed, new sound card. etc. I stripped it of useful parts and sent it out into the world.

DO you have any error messages on the screen? Or is just black? Please provide details. THank you

Where you logon?Yes? - You used 3rd party personalization software. Use it to change it back.No? - Go to Start > Control Panel > Display. Choose Desktop and select Background of your choice. XP only! If it the BIOS boot logo, you did a no no.

There is a small pinhole in front of the drive. Use a straightened paper clip to eject stuck disc.

Blue Screen Of Death

• You may need to roll back system with System Restore (press F8 during boot and choose safe mode).
• Uninstall last program(s) that was installed, again in safe mode.
• Re-install Windows. Clean install works best
• Test one DIMM at time. One slot at a time. To eliminate possible bad RAM.
• Lastly you may have other hardware problems. If it does another blue screen after reloading windows, especially with a clean install.

Wow. Good job. Don't think I could pull that one off.