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CosmicCoder
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January 3rd, 2006 16:00
Thermal shutdown problem on D810 with Fedora Core 4
I'm having a thermal shutdown problem with my D810 running Fedora Core 4 that has me totally baffled. My hardware is a D810, Pentium M Dothan 1.86GHz, 1 GB RAM, 100GB HD 7200 RPM, ATI X300 graphics, 15.4 WSXGA+ display, DVD+/-RW. The BIOS is A04 (09/30/2005). I'm running FC4 - everything with full updates. The single trip point in my /proc/acpi/thermal_zone/THM/trip_points file is "critical (S5): 98 C". The problem is that the system is doing a thermal shutdown at 40-41 C and I have no idea why. The single cooling fan is running full speed (confirmed by i8kmon and my ears) at the time of the shutdown.
Now here is the strange part: If I boot up KNOPPIX (v3.9 or 4.0.2) and exercise the processor, I never have a thermal shutdown problem even if the CPU temperature goes as high as 55 C. What is KNOPPIX (a Debian derivative) doing that is so different from FC4? I have also tried the latest Debian and Gentoo distros and they also exhibit the thermal shutdown problem. I kept a small M$ XP partition around and when I run XP and exercise the processor I never have a thermal shutdown. The system passes all the Dell diagnostics.
This problem has me stumped. I really need to find a solution and fast. Does anyone have any ideas or suggestions about this problem? FC4 runs just fine on my old Inspiron 8100 but for some reason has this premature thermal shutdown problem on my D810. I'm thinking this may be some quirky ACPI issue. Anyway, I sure could use some help.
Now here is the strange part: If I boot up KNOPPIX (v3.9 or 4.0.2) and exercise the processor, I never have a thermal shutdown problem even if the CPU temperature goes as high as 55 C. What is KNOPPIX (a Debian derivative) doing that is so different from FC4? I have also tried the latest Debian and Gentoo distros and they also exhibit the thermal shutdown problem. I kept a small M$ XP partition around and when I run XP and exercise the processor I never have a thermal shutdown. The system passes all the Dell diagnostics.
This problem has me stumped. I really need to find a solution and fast. Does anyone have any ideas or suggestions about this problem? FC4 runs just fine on my old Inspiron 8100 but for some reason has this premature thermal shutdown problem on my D810. I'm thinking this may be some quirky ACPI issue. Anyway, I sure could use some help.
