I just replaced 1gb of memory in a Dimension 3000 with 2gb. When I turned back on, instead of the light turning green and it booting up, it stayed yellow. It is powering up, just not communicating. I have unplugged and the replugged the hard drive, I've put the old memory back in, and attempted to boot from the XP disc. I have since put the memory in another pc and it worked fine. Could it be the hard drive or motherboard?
I believe resetting the CMOS would fix this problem. To reset the CMOS, open up the computer and locate a battery similar to this one (it's on the motherboard):
Picture
Once you find it, pull it out. Leave it out for about 24 hours (one day) afterward placing the battery back into its slot on the motherboard. Now try booting up.
It should now successfully start up requesting that you make changes to the BIOS since the CMOS was just reset. Afterward you should be able to use the computer normally.
NOTE: Try resetting the CMOS with the original RAM inside the computer. The new RAM might be forcing the motherboard to send too much voltage or use an incompatible Mhz setting to support the new stick of RAM.
Let me know how it turns out and if I can do anything else to assist you.
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