#12057 HIGH 4-hardw: xo cl4 a2 boot halts after enabling cache

Zarro Boogs per Child bugtracker at laptop.org
Sat Sep 15 23:59:41 EDT 2012

#12057: xo cl4 a2 boot halts after enabling cache
           Reporter:  pgf       |       Owner:  wad        
               Type:  defect    |      Status:  assigned   
           Priority:  high      |   Milestone:  4-hardware 
          Component:  hardware  |     Version:  4-A2       
         Resolution:            |    Keywords:  XO-4, cache
        Next_action:  diagnose  |    Verified:  0          
Deployment_affected:            |   Blockedby:             
           Blocking:            |  
Changes (by wad):

  * keywords:  => XO-4, cache
  * priority:  normal => high
  * next_action:  never set => diagnose
  * status:  new => assigned
  * milestone:  => 4-hardware


 What's the status of this ticket ?

 It was believed that this might be due to operating the B0A (B0) silicon
 used in the A2 motherboards at too low of a main voltage.

 OFW was changed to operate the processor at a higher voltage, but due to
 complications in the check-in process it is unclear which versions earlier
 than Q7A15 actually operate at the higher temperature.   Please retest
 with Q7A15 if you haven't already verified that this was the problem.

Ticket URL: <http://dev.laptop.org/ticket/12057#comment:1>
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