Service manual

Power-Up Diagnostic Error Table C-7
Test
# hex
ERROR #
<15:0>
FRU(s) Component(s) Failure Description
B-cache address test
0001 QBBx.CPUy EV, BCache B-Cache init code (write to all 0’s)
0002 Address pattern writes failed (address = data)
0003 Address pattern verification failed
6
Parameters all error numbers
P1: Exp: P2 xor EXP_DATA (where EXP_DATA = data written to B-Cache)
P2: Rcvd: Actual data received (read from B-Cache)
P3: Addr: Failing B-Cache Address
P4: 0
Note: If P3 address ends in:
0: expected/received is LOW data<63:0>
8: HI data<127:64>
Alpha CPU chip D-cache and CPU module B-cache error tests
0001 QBBx.CPUy EV, Bcache single bit error
0002 single bit error, error not logged in DC_STAT
0003 Failed double bit error test
0004 double bit error, error not logged in DC_STAT
0005 D-Cache parity error, DC_STAT not clear
before starting
0006 D tag parity error not set
0007
B cache parity error not set
7
Parameters for error numbers 1,3
P1: P2 xor EXP_DATA (where EXP_DATA = DC_STAT ipr read) P3: 0
P2: Rcvd: Actual data received (DC_STAT ipr read) P4: 0
Parameters all error numbers 2,4,5,6
P1: P2 xor EXP_DATA (where EXP_DATA = DC_STAT ipr read) P3: FFFFFFFFFFFFFFFF
P2: Rcvd: Actual data received (DC_STAT ipr read) P4: 0