What type of RAM does the Mother-Board support?

Make sure it uses STANDARD types of RAM modules. 72 pin 60ns EDO non-parity RAM is the current standard and will have some longevity in this industry. Don't purchase a motherboard that requires something proprietary. SIPPs are old, and hard to find, DRAM is slow, and anything weird should be completely avoided (if not ran away from). DIMMs are the newest type of RAM, they are faster - with a true 32bit bus path. The newest and fastest RAM on the market is SDRAM. It is supposedly a great deal faster than EDO. Make sure your motherboard CAN handle this new RAM before you spend the money.