Nvidia NFORCE 780I SLI User Manual page 57

Ø
Expert
Use the Page Up and
selected, all timing categories are enabled for manual input. Note that you
should set the value to Optimal to use the manufacturers' recommended
values.
Parameters
Memory Timing Setting
tCL (CAS Latency)
tRDC
tRP
tRAS
Command Per Clock (CDM)
** Advanced Memory Settings **
tRRD
tRC
tWR
tWTR
tREF
w
: CAS# latency (options are 1 through 6).
tCL
w : RAS#-to-CAS# Delay for Read/Write commands to the
tRDC
same bank (options are 1 through 7).
w
: Row Precharge time. This is the Precharge-to-Active or Auto-
tRP
to-Refresh of the same bank (options are 1 through 7).
w : This is the minimum RAS# active time (options are 1 through
tRAS
31).
w
Command Per Clock
clock unit basis (options are 1T and 2T).
w
: RAS#-to-RAS# delay of different banks (options are 1
tRRD
through 15).
w
: RAS#-to-RAS# or auto refresh time of the same bank (options
tRC
are 1 through 31).
w
: The Write recovery time (options are 2 through 7).
tWR
w : This is the minimum write-to-read delay with the same chip
tWTR
selected (options are 1 through 10).
w
: This is the DRAM refresh rate (options are
tREF
).
3.9uS
Page Down keys to select
Settings Current Value
[Expert]
[Auto(5)]
[Auto(7)]
[Auto(7)]
[Auto(23)]
[Auto(2T)]
[Auto(4)]
[Auto(28)]
[Auto(7)]
[Auto(10)]
[Auto] 6.1uS
: This is the command timing setting on a per
October 17, 2007 | DU-03597-001_v01
Configuring the BIOS
. When Expert is
Expert
5
5
5
18
1T
3
22
5
9
,
Auto 7.8uS
NVIDIA Corporation
, and
47