[LEDE-DEV] Speedport W504V | ARV8539PW22 - gets very hot !

[Dennis Schneck]

thanks a lot, i will get a thermometer and measure it
 
 
 

Gesendet: Samstag, 01. Oktober 2016 um 20:33 Uhr
Von: "Sebastian Moeller" <moeller0 at gmx.de>
An: "Dennis Schneck" <dennisschneck at web.de>, "Oswald Buddenhagen" <oswald.buddenhagen at gmx.de>
Cc: lede-dev at lists.infradead.org
Betreff: Re: [LEDE-DEV] Speedport W504V | ARV8539PW22 - gets very hot !
Hi All,

Typically the heat pain threshold for the fingertips is reached around 42 degree Celsius, so if it is not yet painful to touch the temperature most likely is below 42. I admit that it takes masochistic tendencies to knowingly perform such approximate heat measurements...

Best Regards
Sebastian
 
On October 1, 2016 2:41:03 PM GMT+02:00, Dennis Schneck <dennisschneck at web.de> wrote:
 
define "very hot". 
i can not measure it
i feels more than 50 degrees
 
 

Gesendet: Samstag, 01. Oktober 2016 um 14:24 Uhr
Von: "Oswald Buddenhagen" <oswald.buddenhagen at gmx.de>
An: lede-dev at lists.infradead.org
Betreff: Re: [LEDE-DEV] Speedport W504V | ARV8539PW22 - gets very hot !
On Sat, Oct 01, 2016 at 12:49:49PM +0200, Dennis Schneck wrote:I have a Speedport W504V | ARV8539PW22, but i gets very hot (without
doing anything, only power on some minutes).
define "very hot".
the box has a power consumption of around 5w when the dsl connection is
down, and goes up to almost 10w when it comes up. this produces a rather
significant amount of heat.

i find this actually quite disappointing.
the o2 box 4421 consumes around 7w with dsl on. it's based on the same
soc (danube), so it's probably better because it contains way less
auxiliary hardware.
the old speedport w701v based on the ar7 soc consumes around 6w despite
having roughly the same auxiliary hardware as the w504v. the lower max
bitrate (16mbit/s vs. 26mbit/s) is certainly the key here.
and vdsl2 modems typically consume something in the range of 15w. the
other end probably has a comparable consumption, so a single subscriber
weights in with ~30w non-stop power consumption (let's face it, most
people never turn off their modems). this makes the faster dsl variants
an ecologically rather questionable technology ...

fwiw, if anyone has ideas for tuning options how to limit power
consumption, i'm all ears. my connection is artificially limited to
~7mbit/s raw dsl bandwidth anyway.
 
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