On Mon, Jun 13, 2005 at 12:02:01AM +0900, Ryo Tagami wrote: > It's working fine without CPU fan, but I think it's too hot for > appliances since it gets more than 60 degrees Celsius. http://mini-itx.com/projects/quietcubid/ ... CPUburn is hand-written assembly language which thrashes your CPU to within an inch of its life. Sadly, but perhaps unsurprisingly, there isn't a version for the Nehemiah, but it still pushes your CPU temperature way over what any normal flat-out use would be, so you can use it to check for temperature stability problems. So, there's my "before" temperatures: 57°C under SETI@home and 64°C under CPUburn, both after the system had been running for hours, the CPUburn temperature reached after an extra 15 minutes. A word about CPU temperatures: on older systems, where the CPU doesn't have an on-die temperature sensor but there's one on the motherboard underneath the CPU, the sensors under-read, as they touch the back of the CPU not the hot part of the case. On that kind of system, a reading of 60°C or over is horrendously high and something should be done to cool the CPU down before the blue smoke comes out. Some manufacturers' BIOSes adjust the reading to take into account the under-read, though, so don't panic so long as a cold system reads somewhere in the high 40s. Anyway, more modern systems where the CPU does have an on-die temperature sensor, you're getting the CPU core junction temperature, and you're getting it correctly. VIA specify that the Nehemiah can tolerate a case temperature of 85°C, which is the equivalent to an on-die junction temperature of about 110°C with the standard heatsink and fan, so getting a reading of 64°C is well within safe limits. ... -- Eugen* Leitl <a href="http://leitl.org";>leitl</a> ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.leitl.org 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE
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