Hello, so I just received my HP elite 480T. The 420GT was working fine, and then I installed the second graphics card, and now the 420GT card does not work. There is an exclamation point in the device manager an says it cannot start. I am not sure if this is true but can my desktop only run one card at a time unless they are using SLI? I was hoping to use either card for CUDA computations and the other for display.
Thanks.
Hello, so I just received my HP elite 480T. The 420GT was working fine, and then I installed the second graphics card, and now the 420GT card does not work. There is an exclamation point in the device manager an says it cannot start. I am not sure if this is true but can my desktop only run one card at a time unless they are using SLI? I was hoping to use either card for CUDA computations and the other for display.
Thanks.
No, SLI isn’t needed, I’ve run a machine in both Windows and Linux that has a 8200 embedded display, a GTX295, a GTX480, and a GTX240 all installed at once.
First easy step: Install the latest NV drivers from the NV site (not from HP!). If you’re using the stock driver that HP shipped, it may not be up to date or it may even have odd INF files.
Second diagnostic step if new drivers don’t help: make sure each card works by itself. Just pop out one card, try, then swap cards and try again. If each card doesn’t work by itself, they aren’t going to work together.
No, SLI isn’t needed, I’ve run a machine in both Windows and Linux that has a 8200 embedded display, a GTX295, a GTX480, and a GTX240 all installed at once.
First easy step: Install the latest NV drivers from the NV site (not from HP!). If you’re using the stock driver that HP shipped, it may not be up to date or it may even have odd INF files.
Second diagnostic step if new drivers don’t help: make sure each card works by itself. Just pop out one card, try, then swap cards and try again. If each card doesn’t work by itself, they aren’t going to work together.
Hey SPWorley! Thanks for the quick response. I just pulled a miracle 5 minutes ago! Ha, I called HP support and they said it couldn’t be done( which I knew was not true). After updating the 8400 GS with most up to date drivers, both the GT 420 and 8400 are showing up working great and I currently have my monitor on extended mode (although that is silly with only one monitor). Ha. I was going to be all bummed out too. Thankfully its working now and I will install Nvidia Insight. Wish me luck!
Hey SPWorley! Thanks for the quick response. I just pulled a miracle 5 minutes ago! Ha, I called HP support and they said it couldn’t be done( which I knew was not true). After updating the 8400 GS with most up to date drivers, both the GT 420 and 8400 are showing up working great and I currently have my monitor on extended mode (although that is silly with only one monitor). Ha. I was going to be all bummed out too. Thankfully its working now and I will install Nvidia Insight. Wish me luck!
So I installed Cuda Toolkit and Cuda SDK. Ran the bandwidth and Cuda Compute examples. All pass and work great on the 420 GT. :)
I have Visual Studio 2008 C++ installed and .NET 3.5 SP1.
I installed the Nvidia Monitor and the required video drivers. I am having some issues however
However, when I try to install the Host program, it says I do not have the required programs. I am not sure what that is about.
Also, I try to open some projects from the SDK, but I am getting errors like “NvCudaRuntimeApi.rules’ was not found or failed to load…” Perhaps I have to link these libraries specifically?
Thanks everyone. This forum rocks.
P.S. OceanCS is so cool!
So I installed Cuda Toolkit and Cuda SDK. Ran the bandwidth and Cuda Compute examples. All pass and work great on the 420 GT. :)
I have Visual Studio 2008 C++ installed and .NET 3.5 SP1.
I installed the Nvidia Monitor and the required video drivers. I am having some issues however
However, when I try to install the Host program, it says I do not have the required programs. I am not sure what that is about.
Also, I try to open some projects from the SDK, but I am getting errors like “NvCudaRuntimeApi.rules’ was not found or failed to load…” Perhaps I have to link these libraries specifically?
Thanks everyone. This forum rocks.
P.S. OceanCS is so cool!