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sc94597 said:
Kami said:

Edit: Found a CPU support list and the Xeon wasn't one of them. It's a H87 chipset and I'm pretty sure the Xeon works on the H97 chipset.

Here's an example of an H87 board which supports a Xeon -1231 v3; however, I'm thinking your motherboard probably won't have the necessary bios, although HP didn't include a lot of CPU's in the support list which should be supported (a multitude of Pentiums, i3s, i5s, and i7s weren't listed.) 

If the chip is on its way your best bet is to do what Arkaign said, update the bios/uefi with your i3, and then test out the Xeon. If it doesn't seem to work, then just sell it (and the i3) and buy an i5. 


Perfectly said. 8 gen to 9 gen didn't change cpu gens, it was all about chipset features. That is a wise plan laid out to just update it and test it. It's not unusual for a board to work with cpus that aren't in the documentation, particularly when the supplier may be using a pretty standard board to begin with that in other configs is sold as a slightly different model for low end workstation or server boxes. I have sometimes seen a cpu show up in bios with an odd name but the correct clock speed, then in windows and cpuid everything looks and works normally. I had a 965 board that successfully ran a s775 pentium dual core e4500, but on boot/post it said something like Intel Processor A90e lol. At the time the newest official bios only supported e6300 and e6400 c2ds.