Issue #677, Issue #692: Add Nvidia RTX A400 and A4000.

Author: geerlingguy

_cards_gpu/nvidia-rtx-a400.md

@@ -0,0 +1,59 @@
+---
+layout: card
+title: "Nvidia RTX A400"
+picture: "/images/gpu-nvidia-rtx-a400.jpg"
+functionality_cm4: "Partial"
+functionality_pi5: "Untested"
+driver_required: "Yes"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/677"
+buy_link: https://amzn.to/4f7AkeH
+videos: []
+---
+The Quadro RTX 400 is supported by both Nvidia's proprietary driver and the open source Nouveau driver in the Linux Kernel.
+
+You need to provide a physical x16 slot. No external power is required, besides up to 75W of PCIe slot power.
+
+There are two ways to try installing the driver:
+
+### Proprietary Nvidia driver
+
+After flashing the 64-bit Pi OS beta to my Pi, I made sure to upgrade everything on it, and install the kernel source, so the Nvidia driver would compile:
+
+```
+sudo apt-get update
+sudo apt-get -y dist-upgrade
+sudo apt-get install -y raspberrypi-kernel-headers
+sudo reboot
+```
+
+Now, download Nvidia's latest [AARCH64 Driver for ARM 64-bit processors](https://www.nvidia.com/en-us/drivers/unix/linux-aarch64-archive/), make the downloaded `.run` file executable, and run it with `sudo`:
+
+```
+chmod +x NVIDIA-Linux-aarch64-565.77.run
+sudo ./NVIDIA-Linux-aarch64-565.77.run
+```
+
+Currently these cards all throw an error about 'RmInitAdapter failed'... see the linked GitHub issue for more help.
+
+### Nouveau (open source) driver
+
+To get the Nouveau driver loaded, you have to [recompile the Linux kernel for Pi OS](https://github.com/geerlingguy/raspberry-pi-pcie-devices/tree/master/extras/cross-compile).
+
+Go to `Device Drivers` > `Graphics support` on the `menuconfig` step, and select the `Nouveau` driver to install.
+
+If you want to be able to boot the Pi all the way, make sure to blacklist the `nouveau` kernel module:
+
+```
+sudo nano /etc/modprobe.d/blacklist-nouveau.conf
+
+# Put this inside the file and save it:
+blacklist nouveau
+```
+
+Now, after a reboot, you can explicitly load the module and see what happens by following `dmesg` in another terminal session:
+
+```
+sudo modprobe nouveau
+```
+
+When I tried this, I got a kernel panic. See the linked GitHub issue for more details.

_cards_gpu/nvidia-rtx-a4000.md

@@ -0,0 +1,59 @@
+---
+layout: card
+title: "Nvidia RTX A4000"
+picture: "/images/gpu-nvidia-rtx-a4000.jpg"
+functionality_cm4: "Partial"
+functionality_pi5: "Untested"
+driver_required: "Yes"
+github_issue: "https://github.com/geerlingguy/raspberry-pi-pcie-devices/issues/692"
+buy_link: https://amzn.to/41vfFxQ
+videos: []
+---
+The Quadro RTX 4000 is supported by both Nvidia's proprietary driver and the open source Nouveau driver in the Linux Kernel.
+
+You need to provide a physical x16 slot, and supplemental PCIe 6-pin power to give the card 140W of power.
+
+There are two ways to try installing the driver:
+
+### Proprietary Nvidia driver
+
+After flashing the 64-bit Pi OS beta to my Pi, I made sure to upgrade everything on it, and install the kernel source, so the Nvidia driver would compile:
+
+```
+sudo apt-get update
+sudo apt-get -y dist-upgrade
+sudo apt-get install -y raspberrypi-kernel-headers
+sudo reboot
+```
+
+Now, download Nvidia's latest [AARCH64 Driver for ARM 64-bit processors](https://www.nvidia.com/en-us/drivers/unix/linux-aarch64-archive/), make the downloaded `.run` file executable, and run it with `sudo`:
+
+```
+chmod +x NVIDIA-Linux-aarch64-565.77.run
+sudo ./NVIDIA-Linux-aarch64-565.77.run
+```
+
+Currently these cards all throw an error about 'RmInitAdapter failed'... see the linked GitHub issue for more help.
+
+### Nouveau (open source) driver
+
+To get the Nouveau driver loaded, you have to [recompile the Linux kernel for Pi OS](https://github.com/geerlingguy/raspberry-pi-pcie-devices/tree/master/extras/cross-compile).
+
+Go to `Device Drivers` > `Graphics support` on the `menuconfig` step, and select the `Nouveau` driver to install.
+
+If you want to be able to boot the Pi all the way, make sure to blacklist the `nouveau` kernel module:
+
+```
+sudo nano /etc/modprobe.d/blacklist-nouveau.conf
+
+# Put this inside the file and save it:
+blacklist nouveau
+```
+
+Now, after a reboot, you can explicitly load the module and see what happens by following `dmesg` in another terminal session:
+
+```
+sudo modprobe nouveau
+```
+
+When I tried this, I got a kernel panic. See the linked GitHub issue for more details.