i5-8400 not work on my pc

[w0w0w5]

Greeting all

I installed new processor on my ENVY Desktop - 750-415.
New CPU pc won't turn on, Fans spin a second and then turn off again and again. I updated BIOS to last version but still giving the same issue.

Any one could guide me please

[w0w0w5]

Btw, when I installed old cpu back everything goes normal.
Which clear for me that it is new cpu issue

[Paul_Tikkanen · Accepted solution]

Hi:

You installed an unsupported processor.

Below is the link to the product specs page for your PC.

https://support.hp.com/ca-en/document/c05273188

It can only run three Skylake 6th gen core processors. 

A 7th or 8th gen core processor will not work.

[w0w0w5]

Oh thanks Paul

I checked that already, I thought they mentioned 6th gen cores due to the production date for the pc.

Is that clear no way to run 8th generation?

Thanks

[Paul_Tikkanen]

You're very welcome.

No way a 7h or 8th gen core processor will work in a PC with a Skylake chipset.

The best you can do is the i7-6700.

[w0w0w5]

Sorry for asking more

Is it possible to install new motherboard?

[Paul_Tikkanen]

Unfortunately, that I do not know.

[w0w0w5]

Thanks for your time

[Paul_Tikkanen]

You're very welcome.

Hopefully you will be able to use the processor in another PC one day, or you can always put it up for sale on eBay.

[w0w0w5]

That's what I'm gonna do 👍