Does PC 800 Memory need to be installed in equal pairs?

By nightfly
Jun 11, 2005
  1. I have a Gateway with two sticks of PC 800 (64 MB each). I bought a stick of 128. When I install just the stick of 128, I get three long beeps at startup. Dows this memory need to be installed in pairs, or is this a sign of a bad stick?
  2. Didou

    Didou Bowtie extraordinair! Posts: 4,274

    Yes Rambus RDRAM needs to be installed in pairs (except on the old Pentium III chipset the i820).
  3. Liquidlen

    Liquidlen TechSpot Paladin Posts: 1,094

    Dual channal ram must be installed in matched pairs, but boards that accept Dual channel will function with unmatched ram installed. You should check with the manufacturer to find out which slots to populate given the configuration you want to use.
  4. nightfly

    nightfly TS Rookie Topic Starter

    Thanks for your help!
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