ASROCK CONROE1333-D667 - V1.1 User Manual page 30

Configure DRAM Timing by SPD
Select [Enabled] will configure the following items by the contents in the
SPD (Serial Presence Detect) device. If you select [Disabled], you will find
the items "DRAM RAS# to CAS# Delay", "DRAM RAS# Precharge", and
"DRAM RAS# Activate to Precharge" appear to allow you adjusting them.
DRAM CAS# Latency
Use this item to adjust the means of memory accessing. Configuration
options: [2 DRAM Clocks], [3 DRAM Clocks], [4 DRAM Clocks], [5 DRAM
Clocks], and [6 DRAM Clocks].
DRAM RAS# to CAS# Delay
This controls the latency between the DRAM active command and the
read / write command. Configuration options: [2 DRAM Clocks], [3 DRAM
Clocks], [4 DRAM Clocks], [5 DRAM Clocks], and [6 DRAM Clocks].
DRAM RAS# Precharge
This controls the idle clocks after a precharge command is issued.
Configuration options: [2 DRAM Clocks], [3 DRAM Clocks], [4 DRAM
Clocks], [5 DRAM Clocks], and [6 DRAM Clocks].
DRAM RAS# Activate to Precharge
This controls the number of DRAM clocks for TRAS. Configuration options:
[4 DRAM Clocks], [5 DRAM Clocks], [6 DRAM Clocks], [7 DRAM Clocks], [8
DRAM Clocks], [9 DRAM Clocks], [10 DRAM Clocks], [11 DRAM Clocks], [12
DRAM Clocks], [13 DRAM Clocks], [14 DRAM Clocks], and [15 DRAM
Clocks].
Primary Graphics Adapter
This item shows the primary graphics adapter. The default value is [PCI].
Configuration options: [Onboard], [PCI] and [PCI Express].
Internal Graphics Mode Select
If you select [Auto], the onboard VGA will be automatically disabled when
you install VGA card; the onboard VGA will be enabled without the installa-
tion of any add-on VGA card. If you select [Enabled, 8MB] or [Enabled,
1MB], the onboard VGA will be enabled.
DVMT Mode Select
Use this option to adjust DVMT mode. Configuration options: [Fixed Mode],
[DVMT Mode] and [Fixed+DVMT Mode]. The default value is [DVMT Mode].
DVMT (Dynamic Video Memory Technology) is an architecture that offers
breakthrough performance for the motherboard through efficient memory
utilization. In Fixed mode, a fixed-size fragment of the system memory is
allocated to the graphics core. In DVMT mode, the graphics driver allocates
memory as needed for running graphics applications and is cooperatively
using this memory with other system components. In Fixed+DVMT mode,
the graphics processor gets a fixed-size chunk of 64MB of memory and up
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