Question Installing new CPU, getting an "unsupported CPU" message.

Aug 14, 2019
My motherboard is an alvorix rs880 uatx, and my new CPU is an AMD Phenom II X4 965. If it matters, my old CPU was an AMD Athlon II X2 250.

After installing the new CPU, I got an error message that said my CPU is unsupported. I thought this could be fixed with just a BIOS update, but after reinstalling my old CPU and installing the most recent BIOS version and then reinstalling the new CPU, the problem persists.

I've checked, and HPs website for my motherboard lists my new CPU as compatible.


Both 965 exceed the maximum supported power of the board. 95W.

There is a 140W and a 125W version of that CPU.

Best you could consider would be the 95W 955 or one of the two 95W 945. Be cautioned, there are 125W versions of both those chips.

Though in your position I would be looking at doing everything I could to get off of the AM3 platform.

Phenom II X4 945C23.0 GHz4x 512 KB6 MB2 GHz15x1.150 - 1.425125 WAM3April 23, 2009HDX945FBK4DGI
C23.0 GHz4x 512 KB6 MB2 GHz15x0.850 - 1.42595 WAM3June 12, 2009HDX945WFK4DGI
C33.0 GHz4x 512 KB6 MB2 GHz15x0.850 - 1.40095 WAM3November 4, 2009HDX945WFK4DGM
Phenom II X4 955C23.2 GHz4x 512 KB6 MB2 GHz16x0.850 - 1.400125 WAM3April 2009HDX955FBK4DGI
C33.2 GHz4x 512 KB6 MB2 GHz16x0.850 - 1.400125 WAM3November 4, 2009HDX955FBK4DGM
C33.2 GHz4x 512 KB6 MB2 GHz16x0.850 - 1.40095 WAM3Q2 2010HDX955WFK4DGM
Phenom II X4 955 Black Edition2C23.2 GHz4x 512 KB6 MB2 GHz16x0.875 - 1.425125 WAM3April 23, 2009HDZ955FBK4DGI
C33.2 GHz4x 512 KB6 MB2 GHz16x0.825 - 1.425125 WAM3December, 2009HDZ955FBK4DGM
Phenom II X4 965 Black Edition2C23.4 GHz4x 512 KB6 MB2 GHz17x0.850 - 1.425140 WAM3August 13, 2009HDZ965FBK4DGI
C33.4 GHz4x 512 KB6 MB2 GHz17x0.825 - 1.400125 WAM3November 4, 2009HDZ965FBK4DGM
Phenom II X4 970 Black Edition2 [9][10]C33.5 GHz4x 512 KB6 MB2 GHz17.5x0.825 - 1.400125 WAM3September 21, 2010HDZ970FBK4DGM
Phenom II X4 975 Black Edition2C33.6 GHz4x 512 KB6 MB2 GHz18x0.825 - 1.400125 WAM3January 4, 2011HDZ975FBK4DGM
Phenom II X4 980 Black Edition2C33.7 GHz4x 512 KB6 MB2 GHz18.5x0.825 - 1.400125 WAM3May 3, 2011HDZ980FBK4DGM