Please Help - CPU Replacement Issue!

[Rookie2PCBuilds]

Hi all

 

First post and seeking some help! any reply's/advice really appreciated 

 

I've just tried to replace my current CPU of Intel Core i5-4570 with an i7-4790k and it wont boot, the CPU cooler fan starts, as per normal for a minute or so then speeds up really quickly making loads of noise until i pull power.

 

Motherboard - HP 18E7 (LGA1150) same socket size for i7-4790k 

GPU - GTX 1060 3GB

Lexar SSD 120GB SSD

WD5000AAK 500 GB HD

EliteDesk 800 G1 PCC006 320W Power Supply

 

Could this be lack of power from my 320W psu?

 

Any thoughts??? i really want to get this cpu up and running!!

 

[CantCompute]

The hp website doesn't specifically say it supports the k skew of the 4790 (https://support.hp.com/lv-en/document/c03885123). OEM boards sometimes have weird restrictions on them. Do you get any error codes? beeps or anything from the motherboard? 

[Rookie2PCBuilds]

Thanks for the reply.

 

No noise, no beeps.. just noise from both fans starting, then gradually speeding up. 

 

Upon putting old CPU back into motherboard, everything works fine as it did before.

[CantCompute]

Can you get into BIOS at all? could just be unsupported CPU although i would have thought that it should work at its base speeds. might be worth asking HP about it