Dimension 9200 bios lock - Dell Dimension 9200 PC Desktop

Does it make any noises? Does the display have any writing on it? What is happening? If you decide that you can't answer these questions, just throw the computer away and buy a new one.

remove ram and listen beep codes from the system ......still no beeps from the system .....the problem with motherboard only

Hi. You computer seems to be booting up using the floppy disk and your floppy disk drive might not be connected properly, not working or not even there. Press F2 to run the setup utility and disable the floppy seek in the bios. It will most likely be in the "Advanced CMOS setup" area, or the 2nd screen depending on your bios. look for "Seek floppy drive at boot?" or, "Disable floppy seek at boot?" or something like that. When you find it, make sure it's not enabled for the seek. Save the change on exiting. :-)

So you don't even get the BIOS screen on star up? Here's a lik to your model's manual: http://support.dell.com/support/topics/global.aspx/support/my_systems_info/manuals?c=us&cs=19&l=en&s=dhs&~ck=anavml
I would try re-seating the memory modules.

A beep code of 3-3-4= Video Memory(RAM) Test Failure that would explain why you get nothing on your screen the first thing you would need to do is disconnect your monitor and try it on another computer. if it works fine then the problem is your video card. If that the case and the video card is intergrated with the motherboard, you will need to repalce the motherboard --- Sorry-- Please vote me a 10 when this works

You can go to the BIOS page of the system by pressing F2 as soon as the Dell Logo comes up.

There is an option for you to load the system to its defaut settings.

Note: Don't forget to set your diskette drive to disabled or off before saving the settings or else the system will always prompt you a diskett drive seek failure message.

check the copatibility.

This is really hard to say. Maybe he messed around in the BIOS settings and tried to overclock your processor. First thing I would do is to go into the BIOS (press F2 during startup) and check every setting. You can also reset it to default and see if that makes a difference.

Another possibility is that there is an issue with the RAM. Did you (or he) install new RAM? Look here to find a list of possible issues.

Check Dell's support page, to see if you can upgrade your BIOS.
Check your Device Manager (click Windowskey+R, type devmgmt.msc) for any unusual entries.

That's all I can think of right now. But please come back and post your findings (even if everything looks ok), so we can look into other places.

the key issue on the uncommanded shutdown is the POWER LED. If upon shutdown, the power LED Flashes AMBER, then the power supply is suspect.

If no flashing amber indication, then the next think I check is the heatsink (Processor overheating) remove, clean and apply arctic Silver heat transfer paste, see if the issuje goes away

Last but not least if the system is failing to boot, and displays a 3 4 diag LED code, then you may have a RAM module that is bad or may just need reseating. Running diags off of the Rersoujrce CD is something to look at too

Hi,
 
The Dimension 9200 is similar to XPS 410. Here is the link to the service manual for the Dim 9200 http://support.dell.com/support/edocs/systems/xps410/en/index.htm
 
The image below shows the location of the Proc Fan, which is located at the front behind the Dell logo
 




Hope this helps. Please rate your feedback!
Thanks,
VJ