Contec SPI-8451-LVA - Manual (Page 93)

8. BIOS Setup
86
SPI-8451-LLVA, SPI-8452-LLVA, SPI-8451-LVA
Description Choice
Active to Precharge delay
Select the precharge delay timer.
DRAM RAS# to CAS# delay
This field lets you insert a timing delay between the
CAS and RAS strobe signals, used when DRAM is
written to, read from, or refreshed. Fast gives faster
performance; and Slow gives more stable
performance. This field applies only when
synchronous DRAM is installed in the system.
DRAM RAS# Precharge
The precharge time is the number of cycles it takes
for the RAS to accumulate its charge before DRAM
refresh. If insufficient time is allowed, refresh may
be incomplete and the DRAM may fail to retain
data.
Memory Frequency for
Select the memory frequency for DDR200 when
install the memory with specification of DDR200, or
when install the memory with specification of
DDR266, or Auto define by the BIOS.
System BIOS Cacheable
Selecting Enabled allows 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.