Service manual

6.11 Memory RBD
RBD 3 of the ROM-based diagnostics sizes memory, runs
extended memory tests, and indicates any failing tests.
Table 6–3: Memory Tests — RBD 3
Test Function
T0001
1
Memory Self-Test (13 sec
2
3
)
T0002
4
CSR Addressability Test
T0003
4
CSR Bit Toggling Test
T0004
4
Parity Error Detection Test
T0005
4
Error Detection and Correction Logic Test
T0006
4
Data Path Test
T0007
4
Quadword and Octaword Masked Write Logic Test
T0008
4
Interlock Lock Logic Test
T0009
1
Interleaving and Address Boundary Test (20 sec
2
)
T0010
1
ECC RAM March Test (20 min
2
)
T0011
1
RAM March Test (9 min–RAM; 17 min–ROM
2
)
T0012
1
RAM Moving Inversions Test (2.5 hrs–RAM; 4.5 hrs–ROM
2
)
1
The /C qualifier is required for these tests.
2
Run times are approximate for one 32-Mbyte module.
3
If self-test fails, there is a 60 second timeout.
4
Tests T0002 through T0008 are run by default.
6–20 VAX 6000 Models 300 and 400 Service Manual