IEI Integration ROCKY-3786 v4.0 - Manual (Page 104)

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IEI ® Technology, Corp.
SDRAM RAS-to-CAS Delay [Auto]
The SDRAM RAS-to-CAS Delay sets the delay between the RAS and CAS signals. The
appropriate delay for the memory module is reflected in its rated timings. The following
configuration options are available:
3
2
Auto (Default)
SDRAM RAS Precharge Time [Auto]
Use SDRAM RAS Precharge Time option to set the number of cycles required for the
RAS to accumulate its charge before the SDRAM refreshes. The following configuration
options are available:
3
2
Auto (Default)
System BIOS Cacheable [Disabled]
Use the System BIOS Cacheable option to enable caching of the system BIOS ROM at
F0000h-FFFFFh, resulting in better system performance. However, if any program writes
to this memory area, a system error may result.
Disabled System BIOS not written to F0000h-FFFFFh.
Enabled (Default) System BIOS is written to F0000h-FFFFFh.
Video BIOS Cacheable [Disabled]
Use the Video BIOS Cacheable option to enable caching of the video BIOS ROM at
C0000h-C7FFFh via the L2 cache.
Disabled
Video BIOS not written to C0000h-C7FFFh.
Enabled
(Default) Video BIOS is written to F0000h-FFFFFh.