Asus P I-P55T2P4S User Manual - Page 20

III. INSTALLATION Level 2 External Static RAM (SRAM) Cache The motherboard you may purchase may have either 0KB, 256KB, or 512KB on-board. If you have two cache chips on-board (see "Map of Motherboard" for locations), then you have either 256KB or 512KB pipelined bust SRAM cache. An "ASUS" or "COAST" cache module can be used to upgrade the 256KB version to 512KB. The 512KB version cannot be upgraded any further. If there is no on-board cache, you may install a SIMM cache module of either 256KB or 512KB. IMPORTANT: You must set jumper 2 "Total Level 2 Cache Size Setting" on page 9 when changes are made to your cache size. III. INSTALLATION (SRAM Cache) 42 Pins 38 Pins 256KB PB Cache Module Insert the module as shown. Because the number of pins are different on either side of the break, the module will only fit in the orientation as shown. Compatible Cache Modules for this Motherboard SIMM Cache Module 256KB 0KB ASUS CM1 Rev 1.0 No No ASUS CM1 Rev 1.3 No No ASUS CM4 Rev 1.5 No No ASUS CM1 Rev 1.6 Yes No COAST 1.1 No No COAST 1.2 No No COAST 1.3 No No COAST 2.0 Yes Yes COAST 2.1 Yes Yes 14 P/I-P55T2P4 User's Manual