Usually in the manual for your mainboard, there is a chart that will tell you what the board is trying to say with that particular beep sequence. It could be memory... or it could be that it is not detecting a video card. I have had both of those problems before. See if you can find the beepcodes.
BTW, I think it was MicroStar? who was building some boards with little LED number displays on them so they would tell you the problem when it wouldn't post properly. Very cool.
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Lephturn - Chief Trainer
A member of The Flying Pigs
http://www.flyingpigs.com "A pig is a jolly companion, Boar, sow, barrow, or gilt --
A pig is a pal, who'll boost your morale, Though mountains may topple and tilt.
When they've blackballed, bamboozled, and burned you, When they've turned on you, Tory and Whig,
Though you may be thrown over by Tabby and Rover, You'll never go wrong with a pig, a pig,
You'll never go wrong with a pig!" -- Thomas Pynchon, "Gravity's Rainbow"