just adding no problems with 5501-70 with an WD blue 5400 rpm disk. freebsd 8.2 uptime 106 and counting... doesnt hang nor crash... gets 1-2 hour of full workout with less than 10% idle, and alot of disk io. this happens about 4-5 times a week. also stream videos most evenings from its internal disk, over smb & nfs
on an older setup in the freebsd 7.X tree... i had a USB disk on the external connector, and that did not go well. any stress on that usb gave almost instant crashes... all of it on bios 1.33 On Thu, Dec 8, 2011 at 8:59 PM, Nix <[email protected]> wrote: > On 7 Dec 2011, Attila Kinali told this: >> I have two stability issues: The CPU runs at 60°C when the system >> is idle. > > SIO Temp: +53.0°C (low = -55.0°C, high = +127.0°C) > (crit = +127.0°C) > > (room temperature: 15C.) > >> Configuration is a bare net5501-700 in the standard case, with >> a low power 2.5" sata harddisk mounted on top of it. > > That extra heat would be the HDD, then. They really can spit out heat, > low power or not (it seems to be correlated mostly with age, I suspect > due to bearing wear). > >> When using the >> CPU to its limit (like by using cpuburn), the temperature will rise >> to 80°C. > > I see no increase in temperature *at all* under heavy CPU load. I find > this very surprising: 120 wakeups per second (from the timer interrupt > and the entropy key daemon) shouldn't be stopping the thing from going > to sleep and cooling down, should it? (Not that 53C really worries me.) > >> Having any other component in there that generates some heat >> or having the case in a room that has very little draft will cause >> the system to crash from time to time. >> >> Adding a fan to the sysem solved the issue. > > Running an HDD without a fan in the mix to give some airflow seems risky > to me, no matter the case. > >> This has been tested and reproduced with Linux kernels 2.6.38.x, 2.6.39.1 >> and 3.0.1 (vanilla, no patches). > > FWIW, I've been using a Soekris net5501 for two and a half years now (no > HDD or wifi). Linux kernels from 2.6.30 up to 3.2rc. No crashes not > attributable to user error, not one. It's sufficiently reliable that I > just bought a second one in case lightning strikes the first one and > cuts me off from the Internet :) > _______________________________________________ > Soekris-tech mailing list > [email protected] > http://lists.soekris.com/mailman/listinfo/soekris-tech _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
