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Baaa0
Beginner
566 Views

Wanting to upgrade from i7 4770 to i7 4790k. Some Q's

Hey to all who may help,

 

Wanting to upgrade my current cpu, an i7 4770 - to another 4th gen: i7 4790k. I know my socket (LGA 1150) can fit the upgrade. But I read somewhere that my BIOS may need an update. I updated my bios to Version 80.21 (13/8/2015) from the HP website.

 

The Memphis-S mobo (https://support.hp.com/in-en/document/c04010525) does not list the 4790k as supported, only the 4790. Although the 'K' variant can fit my socket...

 

So couple things, is my BIOS version up to date and can support it.

 

If so then is my socket not going to support the K because of maybe the TDP. AS the K lists at 88w and my socket can support 84w (which the 4790 is). Is TDP really that important as to stop a processor working?

 

Thanks!

Happy to provide more details if necessary :) 

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7 Replies
AlHill
Super User
76 Views

You must ask HP if their bios supports the 4790K. An upgrade such as this requires socket, bios, and chipset compatibility. Only HP can tell you if their bios supports the upgrade processor.

 

Doc

 

Baaa0
Beginner
76 Views

Hey Al,

 

The customer support rep linked me this page, which is the compatibility list for my mobo

 

https://support.hp.com/in-en/document/c04010525

 

Under processor upgrade the K isnt listed. Only the 4790. But the socket is still supported... So am i to assume the 4790K wont work, maybe because of the extra 4w for the TDP?

 

Thats why i was asking, are TDP requirements are crucial for the CPU to function?

 

Cheers

AlHill
Super User
76 Views

If HP does not list the 4790K, then it is not supported. Read the second paragraph here:

https://www.intel.com/content/www/us/en/support/articles/000005682/processors.html

 

Doc

 

Baaa0
Beginner
76 Views

Thanks for your continued responses Al,

 

Ok fair enough then. Lastly though haha - HP lists my product to have an Intel H87 chipset. Referring to to the compatible CPUs with H87, the 4790k is listed on Intels website. See:

 

https://ark.intel.com/content/www/us/en/ark/products/75004/intel-h87-chipset.html

 

(Bottom left "Compatible Products" tab)

 

Am i to believe Intel or HP...

 

Thanks

AlHill
Super User
76 Views

You have the proper socket, and the proper chipset. However, as Meatloaf said "Two out of three ain't bad".

 

Unfortunately, BIOS compatibility is missing.

 

Doc

 

Baaa0
Beginner
76 Views

hahaha ok then. Ill try ask HP or even Intel what BIOS version i need to update to (Currently 80.21 (if this is even the right number im looking at)). HP customer rep couldnt give me a straight answer so ill try verify elsewhere.

 

Thanks for your help!

AlHill
Super User
76 Views

Ok, let me try again. Intel knows nothing about the HP BIOS. You must ask HP. It is THEIR BIOS.

 

Doc

 

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