Date: Thu, 4 Jan 2001 15:58:56 +0100 From: Vanwaesberghe Werner <werner.vanwaesberghe@imaware.be> To: 'Michael Wells' <mwells@zeus.com> Cc: "'freebsd-questions@freebsd.org'" <freebsd-questions@freebsd.org> Subject: RE: SMP kernel overheats Message-ID: <497C3D8E4D74D411814600B0D03D68C601499E@grd01s60.dcz.bekaert.com>
next in thread | raw e-mail | index | archive | help
Hi Michael, Linux places the processor in a kind of idle state so that is does not get warm. Some operatingsystems do this by default others don't. FreeBSD doesn't. This is a good choice because changing CPU temperatures are bad for a long CPU life. I do not know if you are overclocking your system. But if you do than try to get better processor coolers and also increase airflow though your box. Even if you don't overclock make sure you cool your system properly because two CPU's produce more heat than one CPU. Werner van Waesberghe. -----Original Message----- From: Michael Wells [mailto:mwells@zeus.com] Sent: donderdag 4 januari 2001 11:23 To: freebsd-questions@freebsd.org Subject: SMP kernel overheats Hi all, I've been going through a kernel configuration for my SMP machine. It's a Gigabyte 6BXD with 2xPIII 550MHz processors. I can provide other information if necessary about the hardware, but it's nothing too exotic. The problem I'm having is that although the kernel seems to work fine, and tools like "top" report that the CPUs are idleing, after a few minutes the system starts getting really warm, and eventually the BIOS thermal alarms are triggered at 65 degrees C. As I say, despite this it is all fine in operation, and processes on both CPUs are ok. It is clearly running way too hot though. I've checked my hardware out, and it's all ok. It's working cool in Linux, so I think there's something in my kernel that I need to sort out. What I was wondering was is this a known problem? Can it be fixed? Any other ideas? Thanks, your help is much appreciated. Cheers Michael Wells To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?497C3D8E4D74D411814600B0D03D68C601499E>