Opteron / Tyan motherboard fault on boot.

[ron minnich]

On 19 Aug 2004, Eric W. Biederman wrote:

> > 
> > where the following line(s) are, in set_Trwt()...
> >         if ((clocks < DTH_TRWT_MIN) || (clocks > DTH_TRWT_MAX)) {
> >                 die("Unknown Trwt");
> >         }
> > 
> > What is this, and why is it happening?  
> 
> I don't know the why.  This bit is simply a sanity check that the information
> coming from your serial EEPROM on your dimms is fine.

I have seen this when SMBUS is broken and "clocks" is 0xff (i.e. > 
DTH_TRWT_MAX). You might want to add a print here to see what the value of 
clocks is. 

ron