Ticket #7964 (closed defect: fixed)
C3 laptops sometimes identified as pre-B3 (B2)
|Reported by:||wad||Owned by:||rsmith|
|Priority:||blocker||Milestone:||8.1.1 (was Update1.1)|
|Component:||not assigned||Version:||not specified|
|Action Needed:||add to build||Verified:||no|
|Deployments affected:||Blocked By:|
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.