Filling a 3rd memory slot of a Dell B Series desktop

[hextek]

I purchased what was described as a 'Dell 3588D Motherboard Slot 1 Dimension
XPS-B' motherboard from eBay. It uses Rambus memory sticks, but has 3
memory slots to fill, while every motherboard of that type I have researched only
has 2 memory slots. In addition, most of the Series B desktops I looked into
seem to be limited to 512MB of memory.
Because my motherboard has 3 memory slots, would I be allowed to insert three 256MB memory sticks, giving me a total memory of 768MB? I'm told that you should
not exceed the required limit of memory. Would someone care to comment on my
predicament?

hextek

 

[seanc]

Just try it, it'll either work or it won't work.