[Soekris] net6501 heat?

[Steve Mitchell]

Hi Lonnie,

> Are you using "coretemp" for your temp numbers?  If so, I've not seen accurate values using coretemp on the Jetway just as with the net6501 (previously discussed).

I'm using the temperature reported in the BIOS after leaving the
system running under a normal workload for about an hour, and then
immediately rebooting into the BIOS to record the results.  I have
found very random results with using software packages under
FreeBSD/pfsense, and Linux.

I'm using the Jetway NF99FL-525 dual core 1.8Ghz board with an add on
3 port NIC card.  It was very well supported by pfsense, but in
retrospect is a bit much CPU for what I need.

> Using a "NoiseBlocker NB-BlackSilent XM-1 40x10mm Ultra-silent" (whisper quiet)  fan and "M350 Universal Mini-ITX Case" (lots of holes).

I have two similar fans, and a very open 1U rack mount case with lots
of holes all around as well.  Exit temperature from the fans is around
40 C with the fans running full at about 6000 RPM.  Board temps are as
I posted earlier, even with powerd running and scaling back the CPU
speed.

> The Jetway CPU temps average about 40 degC (38-43) above the ambient.

Based on my ambient temp of about 22 C, I should be seeing around 62 C
then, but I'm only able to maintain that if I have the fans running
full out, which generates a decent amount of noise even with the quiet
aspect of the fans.  Without any fans, or at full CPU load, the temp
easily gets to 85-90C.

> Soren mentiond the net6501-70 runs 32 degC above the ambient using the standard case on a table.

That's good to know.  I have a 1.6Ghz Atom netbook that generates very
little heat, and was hoping for the same on the net6501.

I think I'll go forward with some net6501 purchases to replace these boxes.