How do you think Bristol Ridge will do as a mobile processor compared to Carrizo?

[cbn]

Doesn't running it sans battery kind of defeat the purpose of the laptop?

It can still be run on the internal battery, but it would be limited to a lower power level.

I get ditching the ODD, but running corded all the time or constantly swapping the battery in and out seems like a pretty severe limitation.

Yes, it is a limitation, but then it also allows the laptop to be smaller than it normally could be for 35W. And Bristol Ridge being an SoC, I figure why not take advantage of the integration to allow for a small form factor?

P.S. For 35W without AC power, a variable sized external battery could always be used. See post #71.

 

[cbn]

To maximise the performance on AC and to maximise the battery life while on DC you could do following configuration:

TDP Limit = 35W
PPT Limit AC = 42W
PPT Limit DC = 20W
STAPM = Enabled
STAPM Duration = 200 seconds
STAPM Scalar = 100%
BBT = Enabled
BBT Scalar = 50% (of TDP) // 17.5W

You would have the maximum officially supported cTDP configuration (35W TDP, 42W PPT) available when plugged in to AC and 17.5W power limit enforced while on battery power.

I am glad to hear this is already possible with Carrizo.

Now if only the right supplemental cooling system could be be created to go go along with that.

I am thinking a modular cooling system that would snap in the notebook where the battery normally is could be one way to make this work. This supplemental cooling would add to the existing CPU cooler and fan(s). A simple example could be a plastic chassis (shaped like the battery) with a set of fans that provides a positive pressure ventilation effect in the laptop.

This would allow the following configurations:

1. Laptop with supplemental modular cooling (replacing internal battery) running at 35W/42W with AC power. This would be good for someone that mostly uses their laptop as a desktop, but wants more performance than what they would normally get.

2. Laptop with supplemental modular cooling (replacing internal battery) running at 35W/42W with portable Power bank (ie, external battery). This is how a person could get quiet operation (in a relatively small laptop) at 35W/42W on battery power.

3. Laptop with battery running at 17.5W.

HP's new Spectre laptop has an interesting cooling concept that I think might be adaptable to the power management scheme described above:

http://www.anandtech.com/show/10224/hp-unveils-spectre-the-worlds-thinnest-laptop

To cool-down the CPUs, HP uses its so-called 'hyperbaric cooling technology', which features two ultra-thin fans, a heat-pipe as well as a special copper radiator. The fans intake cool air from the outside and create significant air pressure inside the chassis to blow away hot air. The company does not disclose how loud such cooling system is, but implies that noise levels created by the Spectre should be comfortable.

Notice if we look at the picture above there is actually a radiator portion that doesn't directly receive airflow from the fans. The airflow to this radiator is caused by the higher pressure within the laptop forcing the air to make its escape from the chassis via a channel that passes through the radiator.

So maybe take this light and thin concept for 15W CPUs to an additional level by having the battery replaced with a set of additional fans for a 35W mode when docked to AC.

P.S. I think this method of cooling would also bring additional cooling to the VRMs. (Or if it doesn't....I believe it could be made that way)

 

[ElFenix]

did we really need to bump this thread when there's already both a carrizo thread and a bristol/stoney ridge thread?