8th gen intel processor (8700 coffee lake) on XPS 8920 (Z270 chipset, originally with 7700k skylake)

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@aleg123wrote:

 

Hi,

Since the new XPS 8930 is out by now (supporting coffee lake), I wonder if i put a i7 8700 processor (coffee lake 8th gen intel core) on my XPS 8920 (originally with i7 7700k, skylake, 7th gen intel core, chipset Z2700), if it would work, since I understand the motherboard is the same on both models.

Am I wrong? 

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I don't have time to research this particular instance, but I'll say this ...

While they might have the same type processor sockets, if the XPS-8920 and the XPS-8930 have the same exact motherboard, it would be the first time in Dell's history. :Smile:

That's probably the main reason for similar models to get a slightly different model number ... because the motherboard is different (even slightly counts).

Also, due to Dell custom BIOS in every machine they sell, the processor micro-code in it usually only supports certain chips. It's usually better to only swap to other processors that originally (optionally) shipped as pre-installed in that model. If you ask, you can usually get a "validated processor" list from Dell Support or active Dell forum moderator.

The i7-7700 is codename Kaby Lake (not Skylake) processor and requires a Z270 chipset. The i7-8700 (Coffee Lake) requires a Z370 chipset. No the motherboards are not the same in the XPS 8920 and XPS 8930.

Yes, you are mistaken here - if you try it, be sure you can return the CPU without charge, because what'll happen is that the system won't even POST with the newer CPU installed.

In order to make the upgrade, you'd need to replace both the mainboard and the CPU.