Thanks again Jacumba.
The latest - the G% ran happily until lunchtime (2.5 hours) and then I put it to sleep. It did not recover.
Again after unplugginh the memory and repluggi it reserected.
I have just run memtest and it looks bad but I cannot interpret the results.
Any further suggestions gratefully received.
regards,
Robert
Mac OS X 10.4.11 (8S165) running in multiuser mode
Memory Page Size: 4096
System has 2 PPC processors(s) with Altivec
Requested memory: 1386MB (1453981696 bytes)
Available memory: 1386MB (1453981696 bytes)
Allocated memory: 1386MB (1453981696 bytes) at local address 0x0000000004008000
Attempting memory lock... locked successfully
Partitioning memory into 2 comparison buffers...
Buffer A: 693MB (726990848 bytes) starts at local address 0x0000000004008000
Buffer B: 693MB (726990848 bytes) starts at local address 0x000000002f558000
Running 1 test sequence... (CTRL-C to quit)
Test sequence 1 of 1:
Running tests on full 1386MB region...
Stuck Address : testing 1 of 16
FAILURE! Data mismatch at local address 0x0000000044b8e718
Actual Data: 0xffffffffba4718e7
Linear PRN : testing 3 of 16
FAILURE! Data mismatch at local address 0x0000000044b8e718
Expected Data: 0xa268527acb33ab7a, Actual Data: 0xa268527aca33ab7a
Running comparison tests using 693MB buffers...
Random Value :
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xfffb463e7f757330, BUFB Data: 0xfffb463e7e757330
Compare XOR : ok
Compare SUB : ok
Compare MUL :
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xe08ca21a936a86e3, BUFB Data: 0xe08ca21a926a86e3
Compare DIV : ok
Compare OR :
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0x1f7fa012a3ffdf8d, BUFB Data: 0x1f7fa012a2ffdf8d
Compare AND :
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0x1f37a01023e91e00, BUFB Data: 0x1f37a01022e91e00
Sequential Increment:
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xf62ed6c0dd270578, BUFB Data: 0xf62ed6c0dc270578
Solid Bits : testing 2 of 64
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xffffffffffffffff, BUFB Data: 0xfffffffffeffffff
Block Sequential : testing 2 of 256
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0x0101010101010101, BUFB Data: 0x0101010100010101
Checkerboard : testing 2 of 64
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0x5555555555555555, BUFB Data: 0x5555555554555555
Bit Spread : testing 1 of 128
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xfffffffffffffffa, BUFB Data: 0xfffffffffefffffa
Bit Flip : testing 2 of 512
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xfffffffffffffffe, BUFB Data: 0xfffffffffefffffe
Walking Ones : testing 1 of 128
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0xfffffffffffffffe, BUFB Data: 0xfffffffffefffffe
Walking Zeroes : testing 25 of 128
FAILURE! Data mismatch at local BUFA address 0x000000001963e718, BUFB address 0x0000000044b8e718
BUFA Data: 0x0000000001000000, BUFB Data: 0x0000000000000000
*** Address Test Failed *** One or more DIMM address lines are non-functional.
Execution time: 146 seconds.