Herb Peyerl <hpeyerl@beer.org> wrote:
> Are you sure that works with the 400*s*? I know it works with the
> 400t because I've done it.  I've also done it with a 345... But I
> have a 400s at home and I've tried to do this but after I do the
> upgrade, the power-supply won't even come up. ie: no fan.  It's 
> like it's seriously unhappy... Yes, I've checked orientation of the
> CPU and Crystals, etc... 

For the 400s, the upgrade path is:
If the 1LY3 chip is revision -0304, the cpu, crystal, and boot
rom are replaced.

If the 1LY3 chip is not revision -0304, it appearently takes a
full cpu board replacement.

The 1LY3 chip is located above the cpu and forward of the ram 
slots (when looking from the back) in position U56.


Andy Carey                                                careya@peak.org