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Re: Not all RPI 4's are equal?

Posted: Sun Jun 30, 2019 9:57 am
by drgeoff
Aardappeltaart wrote:
Sun Jun 30, 2019 9:05 am
Thx, but that contradicts Eben Upton words “some thermal optimizations that are not installed by default on early production units.”
I can interpret "early production units" to encompass all RP4Bs produced before the optimisations are fully tested, deemed OK and used in production. If that point has not been reached, even as I type this, there is no contradiction.

Re: Not all RPI 4's are equal?

Posted: Sun Jun 30, 2019 10:09 am
by lb
I guess it's fair to say that all shipped units are "early production" so far.

Re: Not all RPI 4's are equal?

Posted: Sun Jun 30, 2019 10:32 am
by Aardappeltaart
drgeoff wrote:
Sun Jun 30, 2019 9:57 am
Aardappeltaart wrote:
Sun Jun 30, 2019 9:05 am
Thx, but that contradicts Eben Upton words “some thermal optimizations that are not installed by default on early production units.”
I can interpret "early production units" to encompass all RP4Bs produced before the optimisations are fully tested, deemed OK and used in production. If that point has not been reached, even as I type this, there is no contradiction.
You mean all Pi's are (created/shipped) equal now, but that will change in the future.

;)

Re: Not all RPI 4's are equal?

Posted: Mon Jul 01, 2019 12:41 am
by energyi
0.357 watt difference is significant.

Re: Not all RPI 4's are equal?

Posted: Mon Jul 01, 2019 9:07 am
by Aardappeltaart
energyi wrote:
Mon Jul 01, 2019 12:41 am
0.357 watt difference is significant.

Yes, and IMHO the saving is much needed.

Thx to CNX-software for benching, Hias for giving details and thx to jamesh for demystifying the pleonasm spoken by the Great Wizard of Pi.

In memory of that, hereby I declare that the honorable title of Oracle of DelPi has been rewarded to Raspberry Pi Foundation's own Pithia Eben Upton for his ominous raving:
“some thermal optimizations that are not installed by default on early production units.”

A riddle that can only be solved by the future!

Re: Not all RPI 4's are equal?

Posted: Mon Jul 01, 2019 9:14 am
by jamesh
Aardappeltaart wrote:
Mon Jul 01, 2019 9:07 am
energyi wrote:
Mon Jul 01, 2019 12:41 am
0.357 watt difference is significant.

Yes, and IMHO the saving is much needed.

Thx to CNX-software for benching, Hias for giving details and thx to jamesh for demystifying the pleonasm spoken by the Great Wizard of Pi.

In memory of that, hereby I declare that the honorable title of Oracle of DelPi has been rewarded to Raspberry Pi Foundation's own Pithia Eben Upton for his ominous raving:
“some thermal optimizations that are not installed by default on early production units.”

A riddle that can only be solved by the future!
I suspect Eben may have been talking about different optimisations rather than the VLI firmware, but not sure.

Re: Not all RPI 4's are equal?

Posted: Wed Jul 03, 2019 6:00 pm
by hardwaremack-orginal
my PI4B 1gig seemd slow, and was crashing alot.
this new PI4B 2gig, seems great!. 2g model seems to get much hotter, but works great!

Same PI 3A psu, Same SD Card, Same PI mHDMI cable.

I ran

Code: Select all

rpi-update
yesterday. it updated, i rebooted.

I tried it again today and it tells me *** Your firmware is already up to date

1. I would assume rpi-update is what i should be running?
2. Should be able to run this many times with out bricking the thing correct? :-)

Thanks!

Re: Not all RPI 4's are equal?

Posted: Wed Jul 03, 2019 8:22 pm
by jamesh
hardwaremack-orginal wrote:
Wed Jul 03, 2019 6:00 pm
my PI4B 1gig seemd slow, and was crashing alot.
this new PI4B 2gig, seems great!. 2g model seems to get much hotter, but works great!

Same PI 3A psu, Same SD Card, Same PI mHDMI cable.

I ran

Code: Select all

rpi-update
yesterday. it updated, i rebooted.

I tried it again today and it tells me *** Your firmware is already up to date

1. I would assume rpi-update is what i should be running?
2. Should be able to run this many times with out bricking the thing correct? :-)

Thanks!
No, don't use rpi-update unless it has been recommended by a Pi engineer. It will have prototype or test code in it and may not fully work.
Use apt to update to the latest fully tested firmware.

Because we have been trying out some test software to try and fix some issues on some monitors, rpi-update has been suggsted in those cases. But if all works with the standard firmware, keep to that.

Re: Not all RPI 4's are equal?

Posted: Wed Jul 03, 2019 8:26 pm
by hardwaremack-orginal
sudo apt-get update
sudo apt-get upgrade

?

Thanks James

Re: Not all RPI 4's are equal?

Posted: Wed Jul 03, 2019 8:33 pm
by jamesh
hardwaremack-orginal wrote:
Wed Jul 03, 2019 8:26 pm
sudo apt-get update
sudo apt-get upgrade

?

Thanks James
That would do it.