Can you get into the BIOS/setup screen to view the actual components? The key combo to be pressed to get there is probably displayed onscreen when the machine starts.
Tiny A440 laptops were originally manufactured by FIC (First International Computers), in Hong Kong. The Tiny A series range includes the A320, A340, A360, and others, they are all manufactured by FIC. They were then shipped to other manufacturers, which stuck their own badges on them. Advent and Tiny are the ones known using A440's.
As for the RAM, usually they came fitted with one stick of 128. The maximum memory the A440 can take is 256MB, according to FIC's datasheets, but they may take more. The RAM needed is SO-DIMM PC-133 144 pins
Can you boot with a Win98 boot disk? (free at
www.bootdisk.com)