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--- rhino:nvidiainfo [2018/05/24]
+++ rhino:nvidiainfo [2020/08/14]
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+====== NVIDIA Quadro Video Issues ======
+> **Note:** NVIDIA actively fixes issues and updates their drivers.  Please follow the instructions below to get the latest update. This can have a significant impact on Rhino's stability.
+These instructions are for computers that have NVIDIA Quadro graphics hardware.
+**To complete these instructions you must know:**
+  - The card manufacturer.  This page is for NVIDIA Corporation cards.
+  - The video card model.  This page is for Quadro Models only.
+  - The operating system of the computer. [[http://windows.microsoft.com/en-us/windows/which-operating-system|Which Windows operating system am I running?]]
+If you are not sure of any of these, please go to our **[[rhino:5:video:troubleshooting:failure|Rhino Video Troubleshooting]]** section for additional instructions.
+> Before updating your video drivers we recommend creating a System Restore point on your computer in case the changes need to be rolled back.  [[http://windows.microsoft.com/en-us/windows/system-restore-faq#1TC=windows-7|Instructions for a System Restore.]]
+=====Determine NVIDIA Quadro driver version=====
+  - Start <color red>**Rhino**</color>.
+  - On the **Tools** menu, click **Options**.
+  - Expand the **View** tab (located near the bottom of the list on the left), and then click **OpenGL**.
+  - Look for the **Driver Version:** line.  It will have a long number that looks like <color grey>x.xx.xxxx.xxxx</color> The last five digits of this number are the NVIDIA driver version. For instance, if the long Driver Version number is 8.17.0011.9713, then the NVIDIA driver version is 197.13.
+If the NVIDIA graphics driver version is equal to or larger (newer), than 340.66. This was the first driver to work. Most subsequent drivers have been fine.
+If the NVIDIA graphics driver version is less than 340.66, or more than 6 months old, then update the driver by following the instructions below.
+=====Instructions to update the NVIDIA Quadro driver=====
+  - Go to the [[http://www.nvidia.com/Download/index.aspx?lang=en-us|NVIDIA driver download page]].
+  - Enter the system information:
+      - Product type: Quadro
+      - Product model: Is your adapter in a desktop or laptop?
+      - Product: Enter your specific Quadro Adapter reported in Rhino
+      - Operating system: Enter your operating system
+  - Click **Search**
+  - Download NVIDIA Quadro driver version <color grey>(The driver 340.66 **or newer** is highly recommended).</color>
+  - Start the driver installation
+  - At the point where you can choose installation type, select **Custom (Advanced)**
+  - On the next install screen check the option that says **Perform a clean install**
+  - Continue with the install
+  - Reboot (even though the installer might not suggest it)
+  - Read the Additional Quadro Performance Improvements section below
+=====Additional Quadro performance improvements=====
+--> NVIDIA Threaded Optimization setting#
+Many users are reporting random crashes with NVIDIA drivers.  There is a setting in the NVIDIA Control Panel that seems to help these problems.\\
+>Note: **We recommend using the "Workstation App - Dynamic Streaming" setting**. The Advanced Streaming option may be a little faster but less stable.
+{{:rhino:5:quadrowsadsoption.png?550|}}
+<--
+--> Power adjustments#
+Switching your NVIDIA card to High Performance can also help. Some users have reported this fixes a problem where portions of the **Gumball** feature do not display.
+  - Open your NVIDIA Control Panel and select **Manage 3D settings**
+  - Then, select the **Power Management mode** and change the option from **Adaptive** to **Prefer maximum performance**
+  - Save your changes and your are done!
+{{:rhino:nvidia_max_performance.png?nolink}}
+<--
+--> Vertical Sync#
+I found that disabling vsync in the driver helped quite a bit for v6 - perhaps it helps with v5 too.
+With VSync on:
+<code>
+Command: _TestMaxSpeed
+Time to regen viewport 100 times = 1.66 seconds. (60.39 FPS)
+</code>
+With Vsync off:
+<code>
+Command: _TestMaxSpeed
+Time to regen viewport 100 times = 0.08 seconds. (1265.82 FPS)
+</code>
+{{:rhino:vsync.png?600|}}
+<--
+=====Latest discussion on NVIDIA cards=====
+The most recent and ongoing discussion about Rhino and NVIDIA cards here: http://discourse.mcneel.com/t/quadro-drivers-updated-good-news/11197/4
+And the [[https://discourse.mcneel.com/t/how-can-i-improve-my-rhino-5-performance/62920/8|How can I Improve my Rhino performance thread]].

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