Asus P55SP4 - Manual (Page 71)

P/I-P55SP4 User's Manual
Level 2 Cache Options
Cache Type & Size: See jumper section for settings, and below for other
specifications. Cache RAM required speed is 15ns.
This mainboard supports standard SRAM in the sockets or Pipeline Burst. Burst or
Asynchronous SRAM on a cache module installed in the cache socket. Refer to
the chart below for the specifications for your cache type. You can upgrade either
cache type from 256KB to 512KB or 1 MB.
Cache Chip Specifications
Cache Type Size Data Chip Size Tag Chip Size
SRAM Sockets 256KB 32K8x8pcs 8K8,16K8 or32K8x1pc
512KB 64K8x8pcs 16K8 or32K8x1pc
1MB 128K8x8pcs 32K8x1 pc
Cache Module 256KB
512KB
1MB
Important:
Data SRAM must be either Mixed Mode or 3.3V SRAM.
Tag SRAM must be either Mixed Mode or +5V SRAM.
Note that jumpers JP10& 11 select the cache size for both types of cache,
so you must set it for the size of the installed cache.
Jumpers JP36 & JP37 enable the onboard SRAM (pins 1&2 shorted).
If a Cache Module is installed, short pins 2&3to disable the on-board
SRAM if it is Asynchronous SRAM.
L2 Cache Size Cacheable Memory Size
256KB 32MB
512KB 64MB
1MB 128MB
This chart shows the maximum amount of
system memory each size option can cache.
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