Chapter3 Installation / 15DIMM Memory InstallationInsert the module (s) as shown. Because the number pins are differ-ent on either side of the breaks,the module will only fit in the ori-entation as shown. SDRAM DIMM modules have different pin con-tacts on each side and therefore have a higher pin density.168 Pin DIMM Memory SocketThe Dual Inline Memory Module (DIMM) memory module mustbe 3.3v Extended Data Output (EDO) DRAM or SDRAM. You canidentify the type of DIMM module by the illustration below:168 Pin DRAM DIMM Notch Key DefinitionsThe notch on the DIMM module will shift between left, center, orright to identify the type and also to prevent the wrong type to beinserted into the DIMM slot on the Mainboard. You must ask yourretailer for Specifications before purchasing.Four clock signals are supported on this mainboardJP8