I have two 256MB RAM modules. I recently bought an additional 1GB DIMM. A friend of mine asked me to try his RAM, as it was the same as mine. I tried it and my computer flashed an error. I stopped immediately, removed my friend’s RAM, and shut off my computer. The 1GB DIMM was installed and so were the other two 256MB sticks. But now the computer only recognizes the 1GB and says the other slots are empty, despite the presence of the 256MB DIMMS. How can I get the system to recognize the rest of the RAM?
If the memory still does not show up, completely shut down the box, remove the 1GB DIMM, and install each of the 256MB DIMMs in the slot the 1GB was in. If the PC now recognizes the 256MB DIMMs in that slot, you likely have two bad slots—highly unlikely. If it does not, you likely have bad DIMMs—also improbable. We think your troubles will be fixed before then with a careful reseating.
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