All, >From the information that I have it seems that some BIOSes are turning some features off that will also disable the reporting of the temp via 0xc0000002. Jason, does you BIOS writer guide say why and what feature and under what circumstances this should be done by the BIOS? Thanks ...juerg On Fri, Mar 13, 2009 at 4:03 AM, <JasonZhao at viatech.com.cn> wrote: > Rudolf > Will reply you tonight (3 hours later), back to home now:) > However I found I only have a " VIA C7 BIOS WRITERS GUIDE_2.5"( created > in 04/04/07) on hand. My colleague that works for c7 on EFI only have > this datasheet too. > > -jasonzhao > >> -----Original Message----- >> From: Rudolf Marek [mailto:r.marek at assembler.cz] >> Sent: Friday, March 13, 2009 6:02 PM >> To: Jason Zhao >> Cc: Michael Reinelt; Juerg Haefliger; justin at justinzane.com; >> lm-sensors at lm-sensors.org >> Subject: Re: module c7temp shows voltage, but no > temperature >> >> Hello Jason, >> >> We have some problem with c7temp driver in the linux. This was done by > Juerg. >> The driver can be downloaded from the lm-sensors.org website in > devices >> section. >> >> It seems some version of fam6 model D does not have any temperature > register >> in >> >> > ? ?0xc0000002: eax=0x00000000 ebx=0x08000810 ecx=0x08100f13 > edx=0x42040000 >> >> Jason, Please can you look to some more recent version of C7 data > book, where >> the values for temperature are stored? (normally they are for cpuid > EAX = >> 0xc0000002 in EAX. Here are zeros. >> >> I dont know what CPU revision it is exactly. I guess we will need to > read some >> other MSR to get current version. Juerg do you know this? Its should > be MSR >> 1154h. >> >> All I know that the cpu is also at HP Mini-note 2133. >> >> Thanks, >> Rudolf >> >> > >