Detailed descriptions
16.5 BIOS Setup
SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01
169
"Memory Cache" field
The following shortcut menu appears when you select the "Memory cache" option in the
main menu:
Figure 16-7 "Memory Cache" field
The term cache is used to denote a high-speed memory buffer between the CPU and
memory (DRAM). Instead of using the slower RAM the system deploys high-speed cache
memory for repetitive memory access, provided this function is enabled. In rare cases it may
be necessary to disable cache memory for certain hardware and software, as program
runtimes or waiting times can be reduced by using high-speed cache memory.
[Disabled]
Cache is disabled
[Enabled]
Cache is enabled
