Appendix A. On-board LED Codes .............................................................112
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Parts NOT in the Kit
This kit contains all the hardware necessary to install and connect your new
EVGA nForce 680i SLI motherboard. However, it does not contain the
following items that must be purchased separately to make the motherboard
functional.
Cooling fan for the microprocessor
System memory support:
Supports dual channel DDR2 533/667/800, and up to 1200 MHz SLIReady Memory. Supports up to 8 GBs DDR2 memory.
Graphics Card
This motherboard is capable of using the NVIDIA SLI technology. To
utilize this technology requires an SLI Kit from NVIDIA and two SLIcapable graphics cards. When ordering a graphics card, be sure it is a PCI
Express card. The kit does contain the SLI connector used to connect the
two graphics cards. See Software Installation
It is important to remember that before installing the driver CD that is shipped in
the kit, you need to load your operating system. The motherboard supports
Windows XP 32bit and 64bit and is Vista-capable.
122-CK-NF68-XX
November 2006
Before You Begin…
The kit comes with a CD that contains utility drivers and additional NVIDIA
software.
The CD that has been shipped with your NVIDIA motherboard contains the
following software and drivers:
Figure 17. NVIDIA Control Panel, Select a Category
Installing and Configuring the EVGA nForce 680i SLI Motherboard
NVIDIA Monitor
The NVIDIA Monitor application can be used at any time with any applications
to view the real-time status of various system components. To display the
NVIDIA Monitor, select
Monitor.
This display shows the performance (usage) of the CPU, disk, memory,
and network. It also monitors the Bus speeds and voltages.
To view temperatures and fans, click the button.
Start¾All Programs¾NVIDIA Corporation¾NVIDIA
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Introduction
NVIDIA nTune 5.0
The Performance category is used to configure and manage NVIDIA nTune.
The NVIDIA nTune program is a full-featured application for accessing,
monitoring, and adjusting your system components (including bus speeds and
voltages) with clear, user-friendly control panels.
Overclock your system for the highest performance, or underclock it for a
nearly silent operation. All changes are performed within the Microsoft
Windows interface, enabling full functionality without the need to make
changes in the BIOS and reboot your system.
Use the following procedure to access nTune:
3. From the desktop, select
Control Panel.
Start¾All Programs¾NVIDIA Corporation¾NVIDIA
4. Select Performance to display Performance Control Panel Categories.
Figure 18. Performance Control Panel Categories (nTune)
The Performance menu provides the following options:
Installing and Configuring the EVGA nForce 680i SLI Motherboard
ª View system information
ª Adjust custom rules
Manual Tuning
The Manual Tuning option provides the ability to adjust motherboard settings,
adjust CPU settings, and make changes to the BIOS.
Adjust Motherboard Settings
The controls in the Adjust Motherboard Settings screen let you adjust the
performance of the system clocks, system voltages, memory controller timings,
and system fans. By manually adjusting these speeds you are able to either
increase performance for gaming, or reduce performance to conserve power
and create a quieter environment.
Figure 19 shows the Adjust Motherboard Settings screen. Note that as you pass
the cursor over the various adjustments, notes display at the bottom of the
screen to explain each setting.
xvi
The number to the right of the slider is the new bus speed that will be applied.
Make adjustments by using the mouse to drag the slider. All changes take effect
immediately after selecting
Apply; however, these setting only remain active for
the current Windows session. This allows you to safely return to Windows if a
crash occurs, with no possibility of boot issues since the changes are not made
directly to the BIOS settings.
Note: All changes on Adjust Motherboard Settings are dynamically made when you
apply them, and only remain active for the current Windows session. You can
save these settings as a profile for use later by using the Profile menu item. If
a setting does not allow a change, it probably requires a reboot and should
be changed in the BIOS or from the Dynamic BIOS Access page (if
available).
Introduction
Figure 19. Adjust Motherboard Settings (nTune)
CAUTION: Increasing the voltage or the clock speed of a component may
void its warranty due to exceeding recommended specifications. NVIDIA
and the board manufacturer are not responsible for damage that may occur
when component tolerances are exceeded.
System Clocks
This section of the Adjust Motherboard Settings allows you to adjust the
reference clocks for the FSB, the SPP PCI Express, and the MCP PCI Express.
Note that as you change the slider for the FSB reference clock, the CPU core
frequency, the FSB Frequency and the memory bus frequency are dynamically
changed.
System Voltages
CAUTION: Overvoltaging any component can result in damage.
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Installing and Configuring the EVGA nForce 680i SLI Motherboard
In this section of the Adjust Motherboard Settings you must understand what
you are changing. Overvoltaging any of the components can result in damage to
the components. From this menu, you can adjust the following voltages:
Always note the color of the indicator square to the right of each slider. Green
indicates the voltage is within range and will not damage any components.
Yellow means to proceed with caution; you are no longer in the safe range. If
the indicator square is red, you are possible overvoltaging the component and
could be causing damage.
System Fans
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This section of the Adjust Motherboard Settings menu allows you to control the
CPU, System, nForce, MCP, and the auxiliary fans. You can either set all the
fans to automatic control or you can manually control each fan.
When in manual control, you can specify to show the temperatures in Celsius or
Fahrenheit.
Introduction
Memory Timing
This section of the Adjust Motherboard Settings allows you to adjust various
memory timings and cycles.
Row Address Strobe
Adjusts the minimum RAS active time. This is the amount of time between a
row being activated by Precharge and deactivated. A row cannot be
deactivated until tRAS has completed. The lower this value, the faster the
performance. However, if it is set too low it can cause data corruption by
deactivating the row to soon. Adjustable from 1 to 63.
Write Recovery Time
Memory timing that determines the delay between a write command and a
Precharge command is set to the same bank of memory. Adjustable from 1
to 15.
W to R Termination Turnaround
The Write-to-Read time is the number of clock cycles between the last write
data pair and the subsequent READ command to the same physical block.
Adjustable from 1 to 15.
RAS to CAS access
The RAS-to-CAS access (tRCD) is the amount of time in cycles for issuing
an active command and the read/write commands. Adjustable from 1 to 15.
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Installing and Configuring the EVGA nForce 680i SLI Motherboard
RAS to RAS Delay
The RAS-to-RAS delay (tRRD) is the is the amount of cycles it takes to
activate the next bank of memory (this is the opposite of tRAS). The lower
the timing the better the system performance. However, this scenario can
cause instability. Adjustable from 1 to 15.
Refresh Rate
This value is filled in by the system and can not be changed by the user.
Memory bank switch
The row Precharge time (tRP) is the minimum time between active
commands and the read/writes of the next bank on the memory module.
Adjustable from 1 to 15.
R to W Turnaround
The Read-to-Write turnaround (tRWT) is a the amount of cycles for the
command to be executed when a Write command is received. Adjustable
from 1 to 15.
R to R Timing
the Read-to-Read time (tRDRD) is the number of clock cycles between the
last read and the subsequent READ command to the same physical bank.
Adjustable from 1 to 15.
Row Cycle Time
The Row Cycle Time is the minimum time in cycles it take a row to
complete a full cycle. This can be determined by tRC=tRAS+tRP. If this
value is set too short, it can cause corruption of data. If this value is set too
high, it causes a loss in performance but an increase in stability. Adjustable
from 1 to 63 cycles
W to R Command Delay
The Write-to-Read (tWRD) command delay is the amount of cycles required
between a valid write command and the next read command. A lower cycle
time results in better performance but is can instability. Adjustable from 0 to
6 cycles.
W to W Timing
The Write-to-Write (tWRWR) timing is the number of clock cycles between
the last write and the subsequent Write command to the same physical bank.
Adjustable from 2 to 15 cycles.
CAS Latency
The CAS Latency (tCL) is the time (in number of clock cycles) that elapses
after the memory controller sends a request to read a memory location and
before the data is sent to the module's output pins. The value shown cannot
be changed.
xx
Introduction
Clock Drive Strength
This value is filled in by the system and can not be changed by the user.
Command Per Clock
The Command Per Clock (tCPC) sets the Command Rate for the memory
controller. The value shown cannot be changed
Async Latency
This value is filled in by the system and can not be changed by the user.
Adjust GPU Settings
Use this interface to adjust the graphics processing unit (GPU) on your video
card(s). You can override the shipped clock frequencies of your GPU and GPU
memory and set the GPU fan speed. Increasing the clock speeds increases your
GPU performance and may require adjusting cooling to maintain the same level
of reliability.
Figure 20. Adjust GPU Settings (nTune)
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Installing and Configuring the EVGA nForce 680i SLI Motherboard
Dynamic BIOS Access
Dynamic BIOS Access allows you to change some of your system BIOS
settings. The changes do not go into effect until you reboot your system. Since
these changes are made to actual BIOS settings in the CMOS, the settings
remain active until you change them again or restore the CMOS to the default
settings.
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Figure 21. Dynamic BIOS Access (nTune)
Introduction
Available BIOS Pages
In the Dynamic BIOS Access page, select a BIOS page that you want to edit
from the Available BIOS Pages drop-down menu The BIOS page you select
determines which items on the Dynamic BIOS Access menu are available for
changing. To edit an item, select an option from the drop-down menus
associated with each item. When finished making your changes, click
Apply.
Note: This feature is available only with BIOS support from the motherboard
manufacturer.
OK or
General Settings
This section of the Dynamic BIOS Access menu allows you to Enable or
Disable the CPU Internal Cache and the Quick Power on Self Test (POST).
Advanced Settings
This section of the Dynamic BIOS Access menu allows you to set the following
options:
Security options
¾ Setup
¾ System
MPS Version Control For
¾ 1.1
¾ 1.4
APIC Mode
¾ Disabled
¾ Enabled
Full Screen LOGO Show
¾ Disabled
¾ Enabled
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Installing and Configuring the EVGA nForce 680i SLI Motherboard
Boot up Setting
This section of the Dynamic BIOS Access menu allows you to set the following
options:
First/Second/Third Boot Device
¾ Removable
¾ Hard Disk
¾ CDROM
¾ Legacy LAN
¾ Disable
Swap Floppy Drive
¾ Enable
¾ Disable
Boot Up Floppy Seek
¾ Enable
¾ Disable
Boot UP NumLock Status
¾ On
¾ Off
Gate A20 Option
¾ Normal
¾ Fast
xxiv
Introduction
Automatic Tuning
The NVIDIA nTune performance manager uses a complex searching algorithm
to determine the best possible and most stable performance for you system.
The nTune tuning engine pushes your system to the limits to test the highest
possible performance settings. Because of this, there may be instances of system
hangs during the testing. When you restart the system, nTune continues its
tuning process until the process is complete. It is highly recommended that you
check the
bottom of the Tune System screen. The effects of the tuning process apply to
the current Windows session only.
The nTune tuning engine runs internal benchmark tests on your system and
creates performance profiles and rules.
CAUTION: Make sure to save and close all work prior to running the Tune
System function. Close all applications and do not perform other tasks
during the tuning session.
Select to continue the tuning process upon reboot box at the
Three tuning options are available on the Tune System menu:
Course tuning takes approximately 20 minutes to run while it adjusts
system bus speeds and parameters. It first saves current bus speeds as two
profiles: the
Bestsystem.npe with the highest passing settings.
Fine tuning takes approximately three (3) hours and performs a more
Default.npe file with current bus speeds and
complex tuning on bus speeds, memory timings, and voltages. This more
complex testing achieves maximum performance.
Tuning using custom settings allows you to select specific areas to test
and the duration of the tests. Remember that a longer tuning session results
in more precise and stable settings. The progress of your test and the results
upon completion are displayed when the benchmarks are being executed.
You can cancel the tests at any time.
xxv
Installing and Configuring the EVGA nForce 680i SLI Motherboard
xxvi
Figure 22. Tune System Menu (nTune)
Introduction
Management
The Management option on the View System Information screen allows you to
view hardware, software, and system information and adjust profiles.
View System Information
This screen is for information purposes only (you cannot make any changes to
the information). The View System Information screen provides hardware,
software, and system information that you can save to a log file to assist
customer support or for your own uses.
Figure 23. View System Information (nTune)
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Installing and Configuring the EVGA nForce 680i SLI Motherboard
Hardware and driver version information can be viewed and saved using this
interface. The status of the system, including current system clock speeds,
system temperatures, memory timings, and system voltages can be logged.
Versions of NVIDIA software and other system software are listed under
Software information.
Detailed CPU and memory information is displayed when you double-click on a
processor or DIMM listed under Hardware information.
xxviii
Introduction
Adjust Custom Rules
The Adjust Custom Rules selection provides you with the ability to create a rule
to define when the system should use a particular profile (.nsu files or
files) that was created from a manual or automatic tuning session.
With custom rules, you can make your system run faster when you are playing
games or make it run quieter when you are surfing the Internet.
.npe
Figure 24. Adjust Custom Rules (nTune)
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