Retina MacBook Pro Firmware Power Nap

[harrisonw1998]

I have a rMBP and don't have the firmware update for Power Nap. Have you guys gotten it yet or has it yet to be released?

 

[heyimandy]

Not currently released for the Retina Macbook Pro. 2011 Macbook Airs have a release for it though. Ours I'm sure won't be long!

https://www.macrumors.com/2012/07/2...re-to-activate-powernap-on-2011-macbook-airs/

 

[br3nt]

probably will show up in app store update
(first time mac user, still on lion so bear (pun intended) with me if thats not correct)
but here's a download link for the airs so far

http://support.apple.com/kb/ht5394?viewlocale=en_us&locale=en_us

:d

 

[rdowty]

It just showed up in software update for me (rMBP).

 

[Beherit7]

The fan turning on at full speed during this update scared me haha

 

[Dunlop122]

The fan turning on at full speed during this update scared me haha

Same here. Certainly got my attention!

 

[harrisonw1998]

Same here. Certainly got my attention!

I know! I remember other firmware upgrades that did the same thing. I wonder
why.

 

[fizzwinkus]

There's probably no software to tell the fan system how fast to run (based on CPU/gpu/ram temps) while firmware is updating so the fan system ramps to max just to be safe.

Once the smc or system is rebooted, the software is active and can tell the fan system what to do.

 

[fkhan3]

For a second I thought my MBP will start hovering over my desk

 

[a3vr]

For a second I thought my MBP will start hovering over my desk

No joke! Before the update I thought I'd heard the fans at 100%. I was definitely wrong.

 

[terraphantm]

Hmm, I don't remember my fans going to 100% while I was updating... maybe I was watching TV or something at the time.

 

[br3nt]

I know! I remember other firmware upgrades that did the same thing. I wonder
why.

if im not mistaken and this is just my guess, haven't read up so much:

the SMC controls the fan... but the SMC needs firmware to be able to operate, hence when you update firmware you shut off the controlling part, thus making the fans go with "better safe than sorry" and ramping up to cool down the computer until the update is done.


and on another note: had my TB -> Ethernet adapter plugged in
(with the ethernet cat5e cable) during powernap, within 12h it had consumed 17% battery) ... so theres a reason apple said to unplug things when on battery and powernap is on