MSI MS-6570E User Manual page 65

MS-6570E ATX Mainboard
Adjust CPU Ratio
This setting controls the multiplier that is used to determine the internal clock speed of
the processor relative to the external or motherboard clock speed.
CPU Interface
This setting allows you to select the CPU/FSB parameters. Setting: [Optimal],
[Aggressive]. When [Aggressive] is selected, the system will use overclocked CPU/
FSB parameters. Select [Optimal] for the most stable CPU/FSB parameters.
Adjust DRAM Freq (FSB:DRAM)
This setting controls the ratio of CPU FSB clock & DRAM Frequency to enable the
CPU & DRAM to run at different frequency combinations. Please note that the setting
options vary according to the CPU FSB clock preset. Options: [By SPD], [2:1], [5:3],
[3:2], [4:3], [5:4], [6:5], [1:1], [5:6], [4:5], [3:4], [2:3], [3:5], [1:2], [Auto].
Memory Timings
Selects whether DRAM timing is controlled by the SPD (Serial Presence Detect)
EEPROM on the DRAM module. Setting to [Optimized] enables DRAM timings to be
determined by BIOS based on the configurations on the SPD. [High Performance/
Turbo] will increase the system performance but may have instabilibity problems.
Selecting [Manual] allows users to configure the DRAM timings manually. Options:
[Optimized], [High Perfomance/Turbo], [Manual].
T-(RAS)
This setting controls the number of clock cycles for DRAM to be allowed to precharge
from the active state. Settings: [1] through [15].
T-(RCD)
When DRAM is refreshed, both rows and columns are addressed separately. This
setup item allows you to determine the timing of the transition from RAS (row address
strobe) to CAS (column address strobe). The less the clock cycles, the faster the
DRAM performance. Setting options: [1] through [7].
T-(RP)
This item controls the number of cycles for Row Address Strobe (RAS) to be allowed
to precharge. If insufficient time is allowed for the RAS to accumulate its charge
before DRAM refresh, refresh may be incomplete and DRAM may fail to retain data.
This item applies only when synchronous DRAM is installed in the system. Available
settings: [1] through [7].
CAS Latency
The field controls the CAS latency, which determines the timing delay before RAM
starts a read command after receiving it. Setting options are: [2.0], [2.5] and [3.0].
[2.0]T increases system performance while [3.0]T provides more stable system
performance.
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