#7964 BLOC 8.1.1 (: C3 laptops sometimes identified as pre-B3 (B2)

Zarro Boogs per Child bugtracker at laptop.org
Thu Aug 14 15:29:17 EDT 2008


#7964: C3 laptops sometimes identified as pre-B3 (B2)
--------------------------+-------------------------------------------------
 Reporter:  wad           |         Owner:  rsmith               
     Type:  defect        |        Status:  new                  
 Priority:  blocker       |     Milestone:  8.1.1 (was Update1.1)
Component:  not assigned  |       Version:  not specified        
 Keywords:  EC            |   Next_action:  code                 
 Verified:  0             |     Blockedby:                       
 Blocking:                |  
--------------------------+-------------------------------------------------
 Some C3 motherboards are erroneously identified as B2 motherboards by the
 EC.   This can cause brick (or brick-like) symptoms.   They are running
 Q2E12 firmware.

 The hardware components are fine -- the board ID voltage is ALMOST
 identical between working and non-working units.   The non-working units
 have board ID voltages slightly below 2.06V (the ideal for C3), but still
 well within tolerances.

-- 
Ticket URL: <http://dev.laptop.org/ticket/7964>
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