Asus P/I-P55T2P4 Static RAM (SRAM) for Level 2 (External) Cache, Compatible Cache Modules for this Motherboard

INSTALLATION .III Cache) (External

III. INSTALLATION

Static RAM (SRAM) for Level 2 (External) Cache

The motherboard you purchase may have either 0KB, 256KB, or 512KB onboard. If you have both onboard cache chips (see "Map of Motherboard" for locations) and a Cache Expansion Slot, then you have 256KB. If you only have onboard cache chips, then you have 512KB. 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 onboard cache, you may install a SIMM cache module of either 256KB or 512KB.

IMPORTANT: You must set "Total Level 2 Cache Size Setting" jumper on page 8 when changes are made to your cache size.

42 Pins

38 Pins

Pipelined Burst 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 to 512KB	0KB to 256/512KB
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
ASUS CM1 Rev 3.0	Yes	Yes
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
COAST 3.0	Yes	Yes
COAST 3.1	Yes	Yes

WARNING: If the cache module that you install already have an extended tag, do not install another TAG SRAM into the TAG SRAM Upgrade Socket.

14 ASUS P/I-P55T2P4 User's Manual