protech PS3100 Series - Page 68

Chapter 4 Award BIOS Setup
Page: 4-14
PS3100 SERIES USER
′ S MANUAL
DRAM TIMEING SELECTABLE:
The value in this field depends on performance parameters of the installed
memory chips (DRAM). Do not change the value from the factory setting
unless you install new memory that has a different performance rating than
the original DRAMs.
CAS LATENCY TIME:
When synchronous DRAM is installed, the number of clock cycles of CAS
latency depends on the DRAM timing.
DRAM RAS# TO CAS# DELAY:
This item let 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.
The choices are 2 and 3.
DRAM RAS# PRECHARGE TIME:
If an insufficient number of cycles is allowed for the RAS to accumulate its
charge before DRAM refresh, the refresh may be incomplete and the DRAM
may fail to retain data. Fast gives faster performance; and Slow gives more
stable performance. This field applies only when synchronous DRAM is
installed in the system. The choices are 2 & 3.
PRECHARGE DEALY (tRAS):
Precharge Delay This setting controls the precharge delay, which
determines the timing delay for DRAM precharge
SYSTEM MEMORY FREQUENCY:
Allow to choose different frequency of memory module.
SYSTEM BIOS CACHEABLE:
This item allows you 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.
VIDEO BIOS CACHEABLE:
This item allows you to enable caching of the video BIOS, resulting in better
system performance. However, if any program writes to this memory area,
a system error may result.