Dual Display nVidia Peeps Heads UP!!

daBoss

New member
Ive been monitoring mine for two days, so Used this fix.


http://httputility.com/Article/dual-monitor-power-saving-nvidia

Dual Monitor Power-Saving Mode (Nvidia cards) Fix
30 November, 2011

If you, like myself, is one of the developers working with dual monitors on an Nvidia card, you might have noticed increased power consumption and temperature of the video card. The problem is quite common with Nvidia desktop cards, as there is no power-savings mode built in for dual monitor mode. The card will simply stay in 3D high performance mode all the time, never reverting back to 2D as it normally would, while idling. This has even been addressed in one of the driver's updates:

This is a hardware limitation and not a software bug. Even when no 3D programs are running, the driver will operate the GPU at a high performance level in order to efficiently drive multiple displays. In the case of SLI or multi‐GPU PCs, the second GPU will always operate with full clock speeds; again, in order to efficiently drive multiple displays. Today, all hardware from all GPU vendors have this limitation.

Fortunatelly, there is a software workaround, that does the magic.
Solution

1. Download and install Nvidia Inspector Tool (normally used for smart overclocking).

2. Right-click on "Show Overclocking" and select "Start Multi Display Power Saver".

Nvidia inspector dual monitor fix

3. Select the card that you want to fix.

4. Check "Run Multi Display Power Saver at Windows Startup".

Nvidia dual monitor power saving fix

5. Optionally add applications you want to exclude from power saving mode and/or enable performance mode when a threshold is met, with P0 being the most performant state and P8 being one of the slower states.

The way it works is quite simple: this application will force the video card into the slowest performing state (effectively downclocking it), which in my case is just 51 Mhz GPU clock. It may also result in the card dropping voltage.

My temperature before applying the fix (idle): 80C.
Temperature after applying the fix (idle): 48C.

Plus, it almost halved the card's power consumption.

download link is here http://download.orbmu2k.de/files/nvidiaInspector.zip
 
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