VIA Technologies P4MA PRO User Manual page 61

Chapter 3
Active to Precharge (Tras)
Set the time from active back to precharge state. Settings: 5T and 6T.
Active to CMD (Trcd)
Set the time from active state to command state. Settings: 2T and 3T.
DRAM Command Rate
This setting controls the DRAM command rate. Selecting 1T allows DRAM
signal controller to run at 1T (T=clock cycles) rate. Selecting 2T makes DRAM
signal controller run at 2T rate. 1T is faster than 2T. Settings: 2T Command and
1T Command.
DRAM Burst Len
This setting allows you to set the size for DRAM Burst-Length. The bigger the
size, the faster the system addresses memory. Settings: 4 and 8.
CPU read DRAM Mode
This setting allows you to set the CPU read DRAM mode. Settings: Slow, Fast
and Medium.
CPU Vcore Select
This setting allows you to adjust the CPU Vcore by increasing or decreasing
0.025 each time. Please note that it may be dangerous to adjust
t h e V c o r e o v e r 1 0 % o f o r i g i n a l C P U s p e c i f i c a t i o n
DRAM Voltage
This setting allows you to set the appropriate DRAM voltage. Setting
options: 2.5V, 2.6V, 2.7V and 2.8V.
CPU Clock
This setting specifies the clock frequency of CPU host bus (FSB) and
provides a method for end-users to overclock the processor accordingly.
If the CPU clock is set over the tolerance limit of the CPU, the mainboard will
show the following message "IMPROPER OVERCLOCKING SETTING, SYS-
TEM IS RESETTING CPU CLOCK TO DEFAULT. Please re-enter BIOS Setup
and remember to save before quit!". This feature protects the CPU from damage
due to overclocking.
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