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what happens if you put 2 diffrent cpus in a server?

so lets say i have a server with 2 sockets (i dont) and i wanted to put 2 diffrent xeons in it, would it work?聽

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No. They need to be the same model, and for some applications you'd want to match the steppings as well.聽

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1 minute ago, BondiBlue said:

No. They need to be the same model, and for some applications you'd want to match the steppings as well.聽

what happens if i put 2 diffrent xeon in tho?

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Just now, adarw said:

what happens if i put 2 diffrent xeon in tho?

It won't work.聽

Phobos (Primary Desktop)

AMD Ryzen 7 2700, 16GB 3000MHz DDR4, ASRock B450 Steel Legend, 6GB Nvidia GeForce GTX 1660 Ti,聽960GB Crucial M500, 1TB Samsung SSD 980, 2TB Seagate BarraCuda, 450W Corsair CXM, Corsair Carbide 175R, Windows 10 Pro for Workstations

Pluto (Secondary Desktop, Plex Server)

Intel Core i7-2600, 24GB 1333MHz DDR3, ASUS P8Z68-V, 4GB XFX AMD Radeon RX 570, 1TB Samsung 860 EVO, 700W EVGA BQ, Fractal Design Focus G, Windows 10 Pro for Workstations

York (NAS/Plex Server)

Intel Core i7-2600K, 16GB 1600MHz DDR3, ASUS P8Z68-V, 1GB PNY Nvidia GeForce GTX 550 Ti, 2GB AMD Radeon HD 6950, 240GB Kingston V300, 2x3TB HDD, 3x2TB HDD, 750W Dell PSU, Dell XPS 630i case, Windows Server 2019

Mid 2011 27" iMac (General Purpose Desktop)

Intel Core i5-2400, 16GB 1066MHz DDR3, Apple Z68 Logic Board, 1GB AMD Radeon HD 6970M, 500GB Crucial MX500, 1TB Seagate BarraCuda, macOS High Sierra

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In the past, some motherboards used to work with different cpus as long as their were from the same series/family/generation .. basically the difference being just cpu clocks and cache memory or something like that.聽聽

But even then, it wasn't recommended, you want pairs of same cpu model.

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it would be the same result as installing no cpus at all

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Assuming the board supported it, it would make more sense to just put in the fastest/newest CPU, and leave the other slot unoccupied, or use a socket terminator in the other socket, whichever the board required, and run it with one CPU. This would get you infinitely more performance than running mismatched CPU's.

I suspect, with Big cores/Little cores becoming a thing, that mismatched CPU's might be an actual thing in the future, but this probably isn't going to be the case.

"Is X and Y going to Bottleneck?" YES. YES, IT FREAKING IS. NOT having a bottleneck is, most likely, impossible. Will it negatively effect your gaming experience? Probably not.

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