Use the following suggestions if one RAM slot is not working on your Windows computer. The first thing you should do is check for physical damage. If your RAM slot(s) is damaged, it will not work.
XDA Developers on MSN
Your PC might be running single-channel RAM right now, and the performance hit is bigger than you think
Single channel can literally halve your performance ...
If your computer is not booting with the two RAM sticks, the problem might be with your RAM sticks or the RAM slots. In this case, you can do one thing. Insert only one RAM stick at a time and start ...
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