WadeDak
Posts: 1
Joined: Tue Jun 25, 2019 5:55 am

Can the Cortex-A73 be replaced?

Tue Jun 25, 2019 6:01 am

Just a question from the blue. Can the Cortex-A72 cpu be swapped out for the Cortex-A77 and remain compatible with the other specs? ( Provided cpu active cooling is prevalent)

fruitoftheloom
Posts: 20205
Joined: Tue Mar 25, 2014 12:40 pm
Location: Delightful Dorset

Re: Can the Cortex-A73 be replaced?

Tue Jun 25, 2019 6:44 am

WadeDak wrote:
Tue Jun 25, 2019 6:01 am
Just a question from the blue. Can the Cortex-A72 cpu be swapped out for the Cortex-A77 and remain compatible with the other specs? ( Provided cpu active cooling is prevalent)

NO

May we ask how you intend to remove ARM CPU from the SoC ??
adieu

Asus CS10 Chromebit / HP Envy 4500 Wireless Printer / Raspberry Pi Model 2B v1.1 / RealVNC Software...

Andyroo
Posts: 3864
Joined: Sat Jun 16, 2018 12:49 am
Location: Lincs U.K.

Re: Can the Cortex-A73 be replaced?

Tue Jun 25, 2019 12:37 pm

Actually its quite simple!

Take 1 Pi
Take 1 chisel
Get new processor
Get glue (two part epoxy)

Put chisel to Pi processor and push

Take new processor
Apply glue to processor
Apply hardener to Pi (love a crisp crust)
Stick processor on Pi

To get it working - use the $35 - $55 fix cream...

Not the best first post on this forum :lol: (and yes I know I may get a warning / ban for this post but honestly - really these aren't socketed boards as two seconds research would show).
Need Pi spray - these things are breeding in my house...

hippy
Posts: 5623
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Can the Cortex-A73 be replaced?

Tue Jun 25, 2019 12:49 pm

[DELETED]

wh7qq
Posts: 1301
Joined: Thu Oct 09, 2014 2:50 am

Re: Can the Cortex-A73 be replaced?

Wed Jun 26, 2019 8:12 pm

Andyroo wrote:
Tue Jun 25, 2019 12:37 pm
Actually its quite simple!

Take 1 Pi
Take 1 chisel
Get new processor
Get glue (two part epoxy)

Put chisel to Pi processor and push

Take new processor
Apply glue to processor
Apply hardener to Pi (love a crisp crust)
Stick processor on Pi

To get it working - use the $35 - $55 fix cream...

Not the best first post on this forum :lol: (and yes I know I may get a warning / ban for this post but honestly - really these aren't socketed boards as two seconds research would show).
Easier, cheaper solution: Just take a hammer to the RPi and then apply the $35 to $55 fix. :D Forget buying the new CPU/glue as it will come "for free" with the fix cream.

W. H. Heydt
Posts: 10629
Joined: Fri Mar 09, 2012 7:36 pm
Location: Vallejo, CA (US)

Re: Can the Cortex-A73 be replaced?

Wed Jun 26, 2019 8:34 pm

Pis have NO field replaceable parts. A few bits can be replaced by knowledgeable people with the right skills and tools, specifically being able to solder very small components. Neither the SoC (nor any of the other components) are socketed. They are soldered to the PCB with specialized industrial equipment. Hunt around and you can probably find an old blog post with video clips of the factory equipment in action.

So it really depends on what you mean by "replace...the SoC". Could the RPT build a board around Cortex-A77 cores? Sure. They could that. It would take 2 to 4 years and several million dollars. Are they going to do that? No, not unless a future SoC for the Pi uses A77 cores...and that would be (at a guess) 3 to 5 years from now--IF they decide to go that route. But they're not going to do "one off" boards that way. If they do it, they'll be making them by the millions and the board won't be called a Pi4B.

On the other hand, you can talk to Element 14 about their custom Pi program. You'll have to pay the up front engineering costs and order at least 3K to 5K boards. IF an SoC exists that is otherwise compatible with the rest of the Pi, THEN you might have boards using Cortex-A77 cores. The big downside (if the forgoing wasn't bad enough) is that you'll probably have to do all the software work yourself to get it function at all.

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