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Need to know what kind of RAM you need? Go to http://www.crucial.com/ and follow the prompts. Order it. When it comes, unplug the power, pop open your case (that will be the hard part) pop the RAM chips in (they only fit one way) and start it up. DONE! You just made your PC much faster.

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OP, I was in almost exactly your situation with possibly identical hardware and did the above after reading some suggestions here. (Thanks to whoever posted those.)

I had never opened a computer case before, but when my RAM arrived from Crucial yesterday, it took about 20 minutes to install. Would have been much quicker but I was reluctant to put enough pressure on the card to pop it into the slot. It's really a snap [img]/images/graemlins/grin.gif[/img] If you read the directions provided on-line at Crucial and in your Dell's owner's manual, you'll have no problems. And the case on my Dell was very simple to open--not even a screwdriver needed.