Memory Configuration; Cache Configuration; Cache Size And Ram Locations - SOYO Pentium SiS 551x User's Manual & Technical Reference

14

Memory Configuration

The mainboard supports two banks of 72-pin SIMM or FDO DRAM (with or
without parity). The mainboard requires SIMM of at least 80ns access time.
The mainboard supports from 2 to 512 Mbytes with no other restrictions on
memory configurations. You can install DRAM in any combination without having to
rely on a memory configuration table. Memory configuration is thus '
. You can use single 32 bits DRAM on SIMM2 and SIMM4.

Cache Configuration

The mainboard has a write-back caching scheme. You can configure the
mainboard 's 's cache by installing cache chips in
jumpers 26 and JP27 to set the mainboard
JP
Figures 2-2-2-3 for cache configurations,

Cache Size and RAM locations

Cache Size
256KB
512KB
Pipelined Burst upgrade
Cache RAM
U19, U20
U19, U20,
and 256KB
module
Hardware Setup
(
Table-Free."
the sockets noted below and then set
for the type of SRAM installed. See
1
TAG RAM
8K,
16Kx8/
U18
16K, 32Kx8/
U18
Cacheable
Range
32MB
64MB
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