Date: Thu, 30 Dec 1999 19:20:26 -0500 From: Ted Sikora <tsikora@home.com> To: "freebsd-stable@FreeBSD.ORG" <freebsd-stable@FreeBSD.ORG> Subject: Temperature Findings Message-ID: <386BF6CA.EA00DF5C@home.com> References: <199912302215.OAA02713@mass.cdrom.com> <386BE138.E85A3DCB@home.com>
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I had one my technicians set up a scope to test the voltage readings and a Cooper temperature gauge to check the case temp. We decided to abandon the CPU test since we had no accurate way to attach the gauge. Our findings: The voltage readings by the winbond IC in the bios are accurate. The case temperature was 5F cooler than reported. So I would conclude the readings from the bios are a fairly accurate representation of the machines current condition. Things I failed to mention. The CPU's were overclocked by 100MHz Core CPU Voltage was raised a 1/2 step to 2.05V o This still does not explain the differences between Linux and FreeBSD. o The standard 3.3-RELEASE UniProcessor kernel runs identical to Linux. o FreeBSD SMP kernels immediately run hotter than the standard kernel. I put Core voltage back to normal and set the CPU's to standard settings. The result was much better but it still runs about 14 degrees hotter.(acceptable) 26 degrees was not. Has anyone else checked this. Just checking the Generic versus a SMP kernel you should see this. Regards, -- Ted Sikora Jtl Development Group tsikora@powerusersbbs.com http://powerusersbbs.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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