On Sat, Jun 5, 2010 at 4:41 AM, Alan <[email protected]> wrote: > On Sat, Jun 5, 2010 at 2:52 AM, Darrick Hartman > <[email protected]> wrote: >> On 06/04/2010 12:45 PM, Michael Proto wrote: >>>> >>>> I have a net5501-70 with 512Mb of ram, 8Gb sandisk cf, a mini-pci >>>> AR5008 wifi, and a Digium TDM422 pci card. The cpu load is below 5% >>>> constantly, yet the temperature reported by lm_sensors is 67-70 >>>> celsius. It goes down to 54-56 if I keep the enclosure open. >>>> >>>> This is a picture of the system: >>>> http://img243.imageshack.us/img243/7826/img1536z.jpg >>>> >>>> The system hangs after a few hours of use, but I'm not sure its >>>> because of the temperature, because although it hangs more often when >>>> its hot, it also happens when the enclosure is open. >>>> >>>> There are no strange kernel messages, and I have enabled >>>> CONFIG_X86_MCE and CONFIG_X86_MCE_AMD (Machine Check / overheating >>>> reporting). >>>> >>>> I don't understand why the CPU gets so hot when its idling, I also >>>> enabled CONFIG_NO_HZ, but it doesn't seem to make a difference. >>>> >>>> Any ideas? >>>> >>> >>> Are you sure your power supply is equipped to handle the load of the >>> board, WiFi, and that Digium card? Since the Digium requires an extra >>> molex power connector, I'm wondering if the system is getting enough >>> power. What is your power supply rated for? >> >> The Digium card only requires power to the card if it's running FXS >> modules. If you have all FXO modules, no external power is required. 2 >> FXS modules (as pictured above) should not be a problem, but it will >> draw around .9 Amps. You'll want to use one of the 5A/60W power >> supplies rather than the simple wall wart. >> >> Something like this works well: >> >> http://www.logicsupply.com/products/pw_12v5a > > > Thanks Michael and Darrick for your observation, and I really hope its it. > > I haven't used the FXS modules yet. Are they still drawing power when > not in use? From previous messages in the mailing list I thought they > drew 3 watts each and only when ringing an analog phone, but I have no > way to confirm it. > > I calculated they drew 0.5 Amps, so I bought the 2 Amp * 12 Volts = 24 Watts. > > Does anybody have any measurement/experience on power usage per FXS > module? What power supply are you people using in these cases? > > How about the temperature, is 70 degrees celsius permissible? Should I > get the heatsinks anyway?
Ok, I did this test: I disconnected all the TDM modules except for one FXO, I disconnected the power cable going to the TDM, I used a 12 Volts, 6.6 Amps PSU, added the heatsinks, and the soekris is still hanging! Now I'm testing again with a 12 Volts, 8.5 Amp PSU, but at this point I don't think its a power issue. If I remove the TDM card everything works well, but the purpose of this box is to make it a PBX. Maybe the TDM card is just not compatible with the soekris? Any suggestions? Alan _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
