Several NVIDIA GeForce GTX GPUs, and the NVIDIA GeForce GTX SLI Bridge, feature illuminated LEDs that can now be controlled with the new GeForce Experience "NVIDIA GeForce GTX LED Visualizer" module. Included with all installs of GeForce Experience, the new module allows GeForce GTX users to customize the brightness and animation of the illuminated "GeForce GTX" text, adding patterns and effects that further enhance the personality of your PC. On the SLI bridge, the illumination and animation of the GeForce GTX Claw logo can be similarly controlled.

The ultra-desirable illuminated GeForce GTX SLI Bridge is available exclusively through the purchase of a GeForce GTX Battlebox as well as through the NVIDIA store.

To get started, all you need is GeForce Experience 1.7, included with all GeForce drivers, beginning with 331.65 WHQL. When installed, you'll be able to use the following effects to customize your LEDs:

• Control Animation Effects

Configure the LEDs to be turned on at a brightness level of your choosing, or to flash in a number of different patterns across multiple LEDs.

• Monitor GPU Activity

Configure the speed of available animation patterns to correspond to a GPU activity level, such as GPU temperature, clock speed, fan speed, or utilization. If you choose a steady brightness and no flashing, then the brightness will change as the GPU activity changes.

• Respond To Audio

Configure the LEDs to respond to audio, such as when playing games.

• Set A GPU Activity Alarm

Configure the LEDs to act as an alarm to alert you, for example, when a GPU temperature or fan speed threshold has been reached.

• SLI Monitor

Configure the LEDs to turn on only when SLI mode is enabled.

After you have installed GeForce Experience 1.7, the LED Visualizer module can be accessed through a dedicated tab in the application itself.

The My Rig section of GeForce Experience gives you instant access to all of the application's features.

Clicking the "Configure LED Visualizer" button opens the LED Visualizer module, giving you access to its configuration features.

The cog on the top right of the window allows you to configure whether LED effects are applied at Windows startup. If they are not, you will need to open the LED Visualizer module to activate them.

The left pane of the new LED Visualizer window gives you the option of applying identical effects to multiple GPUs and the GeForce GTX SLI Bridge simultaneously with the "All LEDs" button, or different effects to each with "Each LED".

If you do select "Each LED", you must specify the GPU or SLI Bridge to be configured by clicking it on the graphical display below the All LED-Each LED toggle. The selected item will be highlighted and the name on the right pane changed to reflect your choice.

Configuring LED Effects

With the LED Visualizer, the LEDs on your GeForce GTX hardware can be configured in a multitude of ways, which we will now detail. For best results, we recommend the 'Each LED' mode, giving you greater flexibility in the range of effects you can apply.

The table below details the general effect each setting has on your LEDs:

LED Effects Setting	Description
Off	LEDs are disabled.
On	LED animation is activated.
On (GPU Property Alarm)	LED animation activates whenever the specified GPU property level is met or exceeded.
On (SLI Is Enabled)	LED animation activates when SLI is enabled (requires GeForce GTX SLI bridge connector).

LED Animation Style Options

The slider to the right of the "Style" dropdown determines the frequency of the effect, or its speed, depending on the effect chosen.

The table below details each effect, and states whether the illuminated SLI Bridge is required, and whether the "All LED" setting has to be used instead of "Each LED" mode.

Animation Style	Description	SLI LED Required	"All LEDs" Required
Breathing	LED brightness changes between minimum and maximum levels with slight delays at the extremes, simulating a breathing pattern.
Audio Flashing	LED brightness flashes in sync with audio activity from the computer, such as from a media player or game.
Flashing	LED brightness smoothly changes between minimum and maximum levels.
Dual Flashing	LEDs flash twice per animation cycle.
Random	Randomly selects an animation style and alternates the selection with the breathing pattern. The entire pattern becomes: First random selection > Breathing cycle > Second random selection... etc.
Variable Brightness	Combines with the "Variation" setting to adjust the brightness of the LEDs based on GPU temperature and other options. Please note that the setting is not available if "All LEDs" is selected.
No Animation	LED brightness is steady. Use the brightness slider to determine LED brightness.
Electric	LED brightness switches quickly between minimum and maximum levels; the "quick flash" travels in a linear manner between all the LEDs.	X	X
Flow In	First the SLI Bridge LED brightness goes from minimum to maximum, after which all the GPU LEDs go from minimum to maximum brightness. This gives the impression of light flowing from out (SLI) to in (GPU).	X	X
Flow Out	First all the GPU LEDs go from minimum to maximum brightness, after which the SLI Bridge LED brightness goes from minimum to maximum. This gives the impression of light flowing from in (GPU) to out (SLI).	X	X
Reverse Breathing	The SLI Bridge LEDs and remaining GPU LEDs "breathe" separately in a linear pattern.	X	X
Wave	Requires three GPU LEDs (3x GPU, or 2x GPU and 1x illuminated SLI Bridge). The LED brightness increases to maximum for each GPU sequentially, followed by the SLI bridge LED (if present), and then sequentially decreases to minimum.		X
Ripple	Each GPU LED Breathes sequentially, followed by the SLI Bridge LED blinking.		X

Variation

Many of the "Styles" can be further modified using the "Variation" dropdown, which allows users to customize the brightness of LED effects, and whether effects respond to things like GPU activity and GPU temperature.

Depending on the Variation and LED Effect mode you use, options are added and removed. The tables below detail these in full.

Variation Settings – LED Effects "On" & "On (SLI Is Enabled)" - "Each LED" Mode

Variation	Description
Style Based	LED animation is controlled by one of the active animation styles. The speed is set by the position of the Style speed slider. If Audio Flashing style is selected, then the speed is controlled by the system audio activity coming from a game or media player. This option is not available if "Variable brightness" Style is selected.
GPU Temperature	LED animation speed varies with the GPU temperature. If Variable Brightness selected, then LED brightness varies with the GPU temperature.
GPU Utilization	LED animation speed varies with GPU utilization. If Variable Brightness selected, then LED brightness varies with GPU utilization.
GPU Clock Speed	LED animation speed varies with the GPU clock speed. If Variable Brightness selected, then LED brightness varies with the clock speed.
GPU Voltage	LED animation speed varies with GPU voltage. If Variable Brightness selected, then LED brightness varies with GPU voltage.
GPU Fan Apeed	LED animation speed varies with the GPU fan speed. If Variable Brightness selected, then LED brightness varies with GPU fan speed.

Variation Settings – LED Settings "On (GPU Property Alarm)" - "Each LED" Mode

Variation	Description
GPU Utilization Limit	LED animation is active as long as the specified GPU utilization level is met or exceeded.
GPU Temperature Limit	LED animation is active as long as the specified GPU temperature is met or exceeded.
GPU Clock Speed Limit	LED animation is active as long as the specified GPU clock speed is met or exceeded.
GPU Fan Speed Limit	LED animation is active as long as the specified GPU fan speed is met or exceeded.
GPU Voltage Limit	LED animation is active as long as the specified GPU voltage level is met or exceeded.

Variation Settings – LED Effects "On" & "On (SLI Is Enabled)" - "All LEDs" Mode

Variation	Description
Style Based	LED animation is controlled by one of the active animation styles. The speed is set by the position of the Style speed slider. If Audio Flashing style is selected, then the speed is controlled by the system audio activity, and brightness is controlled by the Brightness slider. This option is not available if "No animation" Style is selected.

Variation Settings – LED Effects "On" - "No Animation" Style

Variation	Description
Fixed brightness	Sets the brightness according to the Brightness slider. This setting is available only if the "No animation" Style setting is selected.

The huge number of variations gives you many many ways to customize and personalize your system's GeForce GTX lighting. Make sure to share your favorites on the GeForce GTX forums.

GPU Properties

Beneath the LED configuration area is a "GPU Properties" button, which expands the window to show current system stats.

In addition to showing real-time system stats, the Properties panel adds a red line displaying the user-selected alarm limits when using "On (GPU Property Alarm)" LED Effects.

The GeForce GTX TITAN LEDs are configured to flash once GPU temperature exceeds 20C in this example.

With the GPU Properties panel open we can see that the TITAN's temperature has exceeded the limit, denoted by the red line, resulting in the activation of the GPU's LEDs.

With these and the many other tools available in this GeForce Experience 1.7 LED Visualizer module, you can personalize your system's lighting to your heart's content. If you'd like to see any additional modes or features added to the LED Visualizer Module please let us know on the GeForce Experience forums.