AnimatedFreak
Very Active Member
- Joined
- Oct 29, 2011
- Messages
- 307
- Age
- 30
I'm happy to see that there is plans for cooling for future SoC that might need it
1. I suppose that if there had been any breakthroughs, they would have been memorable enough for you to have remembered them... but just in case they've happened and you forgot to mention them, I was wondering if Nikolaus or zmatt had had time to make any progress with the 4 GB situation?I probably have forgotten half of what I did - but simply ask questions in case something is unclear or you want to know something else.
I thought that there was supposed to be a new iteration of the SoC daughter board that would potentially help address the speed & memory issues together? Have those been built or are they still pending more findings?Great to know, assumed this would be priority number one for the prototypes and was starting to worry there was a fundamental problem, good to hear that it's still probably just timings rather than anything more 'sinister'.
We will also add a few venting holes below the USB port. No worries, the mold doesn't need to be changed for that - an inlay for the mold will be created for that.
I even found a small fan that fits there. While I'm not really planning right now adding one there [...].
But therefore loud as hell.Not a huge fan.
That kind of fan is surprisingly quiet, the 1.6 dB kind of absolutely inaudible quiet. I stumbled over a similar SEPA fan that moves 1.1 l/min at 3.3V 165mW (50mA) with up to 7 Pa.But therefore loud as hell.
I've seen posts about failed ANKER cables (micro USB, arcing, smouldering), but I personally had no problems so far and still buy/recommend their stuff.I can personally recommend anything by the brand name ANKER.
Thank you for the update and all your hard work.
BEGGING you to please not make a fan a requirement. Fans are a deal breaker for me on so small a device. First thing to fail, always. Nice to see there's a heat sink solution.
Sounds nice. Do you have a name/part number/price/source?That kind of fan is surprisingly quiet, the 1.6 dB kind of absolutely inaudible quiet. I stumbled over a similar SEPA fan that moves 1.1 l/min at 3.3V 165mW (50mA) with up to 7 Pa.
The sensible approach would be to have both, i.e. Fan off - Throttle, Fan on - No throttle unless necessary. Agreed about the speaker thoughI'll take a fan over throttling
Indeed, though it makes more sense to flip that around. Throttle unless necessary.The sensible approach would be to have both, i.e. Fan off - Throttle, Fan on - No throttle unless necessary. Agreed about the speaker though
My HTC Desire Z gets hot when using it for car navigation in sunlight that I can barely touch it.
Heat kills batteries.
The CPU fan died in my EEEpc 901, within a a year, the battery life was down from 4 hours to 5 minutes.
SIMD (neon) and GPU is far worse than CPU. The RPi and (most) atom boards, for example, can run at 100% CPU with the stock cooling as long as you don't use neon/sse/avx/... or the GPU.I feel like it should be mentioned with what Zogzog and elvissteinjr said that any current SoC will throttle whether there is a fan or not. It will just throttle a few seconds later or (with intermittent load) cool down faster in-between but if you envision a program (let's face it: games) that requires the CPU to run at full speed the whole time, then a fan will not help. It will only help drain the battery faster. ;-)
You'd have to move all signals (USB, etc.) over the flex between top and lower case, which is just crazy (and maybe not even possible because USB, SATA, etc. need matched impedance for the source/traces/sink).That is other reason I think CPU board would be better placed on upper screen case part
Modern (expensive) battery management controllers should avoid this automatically by having a better-tuned tickle charge phase, at least in notebooks. Engineers learned from their mistakesOn other side: not only heat kills batteries: they got older quickly when being 100% charged for long periods (for example people using AC current near all time with 109% charged battery)