NVIDIA nForce 590 SLI Technology Chipset Overclocking
DU-02451-001_v01
3
05/17/06
Glossary of Terms
3DMark
Synthetic 3D benchmark that provides a measure of graphics
performance. It is also often used to test a system for stability.
AMD
Cool’n’Quiet
™
Technology
Technology that changes CPU frequency dynamically depending
on power and thermal requirements of a CPU. Because it limits
the overclockability of an AMD CPU, it needs to be turned off
for best results.
For more information, visit this link
http://www.amd.com/us-
en/Processors/ProductInformation/0,,30_118_9485_9487%5E10272,00.html
.
BIOS
Basic Input Output System.
CPU HTT
HyperTransport interface connecting the AMD CPU to NVIDIA
nForce 590 SLI SPP. Nominally, it runs at 1 GHz clock or 4
GBps in downstream and upstream directions.
CPU HTT
Reference
Clock
Clock signal of the CPU HyperTransport link. It has impact on
HyperTransport bus speed, CPU frequency, as well as memory
frequency. It is 200 MHz nominally.
Multiplier
Multiplier for your front-side bus (FSB). Multiply this value by the
speed of your FSB to get the end CPU clock speed:
CPU Clock Speed = Multiplier x FSB
Prime95
Program that searches for very large prime number. It contains
stability tests and is an indication of how robust a system is.
Serious Sam
Video game which is used by overclockers to test system
robustness.
t
RAS
Row Address Strobe time is the amount of time between a row
being activated by precharge and deactivated. A row cannot be
deactivated until
t
RAS
has completed. The lower
t
RAS
is, the faster
the performance. If it is set too low, it can cause data corruption
by deactivating the row too soon.
t
WR
Write Recovery time is the memory timing that determines the
delay between a write command and when a precharge command
is set to the same bank of memory.
t
WRRD
W to R Termination Turnaround time is the number of clock
cycles between the last write data pair and the subsequent READ
command to the same physical bank.
t
RCD
RAS to CAS Access time is the amount of time in cycles for
issuing an active command and the read/write commands.
