On 13 Sep 2008, at 15:30, Martin Johnson wrote: > I have a net4801 purchased in 03/2007 (and therefore out of > warranty) running ComBios 1.33. I can install operating systems > without a problem onto a flash card or hard disk, but there are > problems under heavy load. > > Faults are:- > > 1. Spontaneous reboots under heavy network load in pfSense (both > FreeBSD 6.x and 7.0 versions). > > 2. Random GCC failures after several hours of FreeBSD 7.0 "make > buildworld", each time on a different C source file, for example:- > > /usr/src/lib/libc/rpc/getrpcent.c:150: internal compiler error: > Segmentation fault: 11 > > I've tried several power supplies, including a 12V regulated one > rated at 5 amps max. No peripherals are connected except a 2.5" > E7K100 hard disk or a Sandisk compact flash card. > > So, I guess the net4801 board is faulty. But is there anything else > worth trying before I give up? For example, is it worth reverting > to an earlier ComBios release? > > Just thought I'd canvas expert opinions here, before assuming the > hardware really is faulty.
Thanks for all the useful replies, on and off list. It's definitely looking like a temperature problem. With the lid off and the hard disk over to the side, the Make Buildworld has been running for 14 hours now without problems. CPU temperature is reported by the Env4801 port as 52 degrees C, and the chip certainly feels very hot to the touch. Ambient temperature is about 20 degrees C. I am told that the net4801 doesn't normally exhibit this kind of problem, but as it's out of warranty, I guess my next step should be to try fixing a small heatsink to the CPU, to see whether that will give enough heat dissipation to fix the problem -- always assuming that it's the CPU chip that's failing when the problem occurs. Failing that I'll just have to add a fan, but I would prefer not to add a fan to a fanless computer if it can be avoided. Cheers, - Martin. _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
