K7S5A Pro CPU Temp accuracy

Archived from groups: alt.comp.periphs.mainboard.elitegroup (More info?)

Hello,

how accurate is the CPU temperature given by K7S5A Pro sensor? I removed the
CPU from the socket and didn't notice any component which touches the
processor, so how the K7S5A Pro measures this temperature?

Maybe it uses the internal Athlon diode?

It's because I am trying some overclock and would like to know if I can
trust the values, or I should add/remove some °C.

Thank you in advance!

--
___ __
/ __|___ Daniele Gratteri, Italian Commodore-Amiga user... ///
| / |__/ Nickname: FIAT1100D - ICQ: 53943994 Ritmo S75 __ ///
| \__|__\ Home page: http://www.gratteri.tk forever! \\\///
\___| E-MAIL: daniele@gratteri.tk ...since 1990 \///

Archived from groups: alt.comp.periphs.mainboard.elitegroup (More info?)

"Daniele Gratteri" <gratteri@NOSPAMemail.it> wrote in message
news:BDOve.5558$h5.360127@news3.tin.it...
> Hello,
>
> how accurate is the CPU temperature given by K7S5A Pro sensor? I removed
> the CPU from the socket and didn't notice any component which touches the
> processor, so how the K7S5A Pro measures this temperature?

HOW does K7S5A Pro measures this temperature??

I'd like to know the answer to that question.

I'd like to know how accurate it is also.

I am NOT interested in hearing whether you think my interest is relevant.

> Maybe it uses the internal Athlon diode?

Is it?

Archived from groups: alt.comp.periphs.mainboard.elitegroup (More info?)

"Kyle" <me@privacy.net> wrote in message
newsPudnYDNRp0IuH7fRVn-vw@comcast.com...
> "fred" <fred@hotmaim.con> wrote in message
> news:a%DEe.27809$5N3.15376@bgtnsc05-news.ops.worldnet.att.net...
> |
> | "Daniele Gratteri" <gratteri@NOSPAMemail.it> wrote in message
> | news:BDOve.5558$h5.360127@news3.tin.it...
> | > Hello,
> | >
> | > how accurate is the CPU temperature given by K7S5A Pro sensor? I
> removed
> | > the CPU from the socket and didn't notice any component which
> touches the
> | > processor, so how the K7S5A Pro measures this temperature?
> |
> | HOW does K7S5A Pro measures this temperature??
> |
> | I'd like to know the answer to that question.
> |
> | I'd like to know how accurate it is also.
> |
> | I am NOT interested in hearing whether you think my interest is
> relevant.
> |
> | > Maybe it uses the internal Athlon diode?
> |
> | Is it?
> |
> |
>
> The temperature sensor (thermistor) is beneath the cpu, and there is
> an air gap therebetween so it is not extremely accurate.

Thanks. " beneath the cpu, and there is an air gap therebetween so it is
not extremely accurate."??

Is that one of the two surface mount devices in the exact middle of the
square hollow of the CPU socket on the mobo's surface?? That appears to
make it about an 1/8 inch free(not circulating) air gap between the
therministor and the bottom of the not very thermally conductive plastic(PC
board) side of the CPU module. That's not very strongly thermally coupled.

If the backside of the mobo is 25C then there's likely to be a significant
temperature drop between surface of the CPU and the thermistor. There is
also likley to be a significant time constant. HOWEVER I'd expect that all
to be relatively consistent. Is there a standard fudge factor that folks
using this mobo expect to see between the actual CPU temp and that reported
by the mobo's therministor?