BIOS Setup Information
PEB-4700 User’s Manual
4-10
DRAM Timing Selectable
Select the operating system that is selecting DRAM timing, so select SPD for setting
SDRAM timing by SPD.
The choice: Manual, By SPD.
CAS Latency Time
When synchronous DRAM is installed, the number of clock cycles of CAS latency
depends on the DRAM timing.
The choice: 2, 2.5.
Active To Precharge Delay
Select the operating system that is active to precharge delay.
The choice: 5, 6, 7.
DRAM RAS# To CAS# Delay
This field let’s 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 choice: 2, 3.
DRAM RAS# Precharge
If an insufficient number of cycles are 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 choice: 2, 3.
MGM Core Frequency
This item allows you to determine the MGM core frequency.
The choice: Auto Max 266MHz, 400/266/133/200MHz, 400/200/100/200MHz,
400/200/100/133MHz, 400/266/133/267MHz, 400/333/166/250MHz,
Auto Max 400/333.
