asb100 Bach

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Hi Tobias, sensors list:

I am still trying to find information about this chip (and others)
to support my P4S333.  Asus has already told me they will *not* 
release a datasheet.  However, the free (beer) program SpeedFan
(http://www.almico.com/speedfan.php) has given me some hints about
how this ASIC behaves:

First of all, it is not the SMBus master as I assumed.  On my board,
that is the SiS645.  Too bad for me, but no problem for you Tobias.

SpeedFan recognizes a LM75 at 0x49, from which I can properly 
read my CPU temp (same as you Tobias).  It also recognizes an
Asus AS99127F at 0x2D, from which I can properly read the rest.
So, I might suggest you try to force the w83781d driver (which 
handles AS99127F) at 0x2D and see what happens.  I cannot test this
myself, since I cannot even access the SMBus for my board.  Please
let me know if this works.

I have tried to contact the author of SpeedFan to find out if and
how he is getting datasheets from Asus (and SiS).  So far, no response.

Regards, Mark

--
Mark M. Hoffman
mhoffman at lightlink.com

On Fri, Jun 14, 2002 at 10:33:40PM -0400, Mark D. Studebaker wrote:
> the script found two possibilities at 0x49 with the same confidence.
> Unfortunately the script doesn't tell you that, it just recommends
> one of the two (the first one it found I guess).
> Try modprobing lm75, not pcf8591. I guess you did that.
> Of course you may not really have a lm75 so you may not
> get good results.
> 
> We already have a Asus 'Mozart' on our new drivers page,
> I'll add the "bach". Presumably it has your temps, fans, voltages, etc.
> We're unlikely to ever get a datasheet on either. Sorry.
> 
> 
> Tobias Edler wrote:
> > 
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> > 
> > Hi !
> > I have a Asus A7v333 mainboard, and cant get all the information, the
> > sensor should deliver. The chip is labeld ASB100 Bach, the manual calls
> > it "ASUS Asic with thermal controller".  Here's the result from
> > sensors-detect :
> > 
> > Driver `eeprom' (should be inserted):
> >   Detects correctly:
> >   * Bus `bt848 #0' (Bit-shift algorithm)
> >     Busdriver `UNKNOWN', I2C address 0x50
> >     Chip `Serial EEPROM (PC-100 DIMM)' (confidence: 1)
> > 
> > Driver `pcf8591' (should be inserted but causes problems):
> >   Detects correctly:
> >   * Bus `SMBus Via Pro adapter at e800' (Non-I2C SMBus adapter)
> >     Busdriver `i2c-viapro', I2C address 0x48
> >     Chip `Philips Semiconductors PCF8591' (confidence: 1)
> >   Misdetects:
> >   * Bus `SMBus Via Pro adapter at e800' (Non-I2C SMBus adapter)
> >     Busdriver `i2c-viapro', I2C address 0x49
> >     Chip `Philips Semiconductors PCF8591' (confidence: 1)
> > 
> > Driver `lm75' (should be inserted):
> >   Detects correctly:
> >   * Bus `SMBus Via Pro adapter at e800' (Non-I2C SMBus adapter)
> >     Busdriver `i2c-viapro', I2C address 0x49
> >     Chip `National Semiconductor LM75' (confidence: 3)
> > 
> > Driver `ds1621' (may not be inserted):
> >   Misdetects:
> >   * Bus `SMBus Via Pro adapter at e800' (Non-I2C SMBus adapter)
> >     Busdriver `i2c-viapro', I2C address 0x49
> >     Chip `Dallas Semiconductor DS1621' (confidence: 3)
> > #----cut here----
> > # I2C adapter drivers
> > # modprobe unknown adapter bt848 #0 using Bit-shift algorithm
> > # modprobe unknown adapter bt848 #0 using Bit-shift algorithm
> > modprobe i2c-viapro
> > # I2C chip drivers
> > modprobe eeprom
> > modprobe pcf8591
> > modprobe lm75
> > #----cut here----
> > 
> > To make the sensors modules behave correctly, add these lines to either
> > /etc/modules.conf or /etc/conf.modules:
> > 
> > #----cut here----
> > # I2C module options
> > alias char-major-89 i2c-dev
> > options pcf8591 ignore=1,0x49
> > #----cut here----
> > 
> > What exactly does "may not be inserted" mean ? Won't work ? might cause
> > problems ? will blow up my computer ?
> > 
> > with lm75, the temperature is disoplayed correctly, but not voltages,
> > fan speeds, MB temp.
> > 
> > Can any of you give me a hint ?
> > 
> > Regards
> > - --
> > ________
> > \  |      GPG (PGP) Key: www.stud.uni-goettingen.de/~s242275/pgpkey.pub
> >  \ |--    Jabber-ID at a-message.de: te_linuxguru
> >   \|____  ICQ: 124557012
> > 
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.0.7 (GNU/Linux)
> > 
> > iD8DBQE9CdXCKpMiVYRJv9YRAt+IAJ9/bINclYVvLiGcUoTwIZZj36b3VgCfRl7Q
> > hh06l1CK+xZ+9OS+qig8ds4=
> > =Wdo2
> > -----END PGP SIGNATURE-----



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