Rember Error

hey guys,

new here , got mbp, late 2011. upgraded ram 2gb 8gb (2x4gb). ran rember when first got them, 4 months ago or so, , passed 255 tests. retested them , wont pass single test.

wondering if memory went bad, still use, have caused harm computer within timeframe?

here log:

memtest version 4.22 (64-bit)
copyright (c) 2004 charles cazabon
copyright (c) 2004-2008 tony scaminaci (macintosh port)
licensed under gnu general public license version 2 only

mac os x 10.7.3 (11d50d) running in multiuser mode
memory page size: 4096
system has 8 intel core(s) sse
requested memory: 5821mb (6104027136 bytes)
available memory: 5821mb (6104027136 bytes)
allocated memory: 5821mb (6104027136 bytes) @ local address 0x0000000101000000
attempting memory lock... locked successfully
partitioning memory 2 comparison buffers...
buffer a: 2910mb (3052013568 bytes) starts @ local address 0x0000000101000000
buffer b: 2910mb (3052013568 bytes) starts @ local address 0x00000001b6ea0800

running 255 test sequences... (ctrl-c quit)

test sequence 1 of 255:

running tests on full 5821mb region...
stuck address : setting 1 of 16 ok
linear prn : setting 1 of 16 ok
running comparison tests using 2910mb buffers...
random value : \ ok
compare xor : ok
compare sub : ok
compare mul : ok
compare div : ok
compare or : ok
compare , : ok
sequential increment: ok
solid bits : setting 1 of 64

failure! data mismatch @ local bufa address 0x000000016a97d848, bufb address 0x000000022081e048
bufa data: 0xfffffffffffffeff, bufb data: 0xffffffffffffffff

block sequential : setting 1 of 256



update:
reinstalled ram , ran rember again, different error popped up. time came with

log:


memtest version 4.22 (64-bit)
copyright (c) 2004 charles cazabon
copyright (c) 2004-2008 tony scaminaci (macintosh port)
licensed under gnu general public license version 2 only

mac os x 10.7.3 (11d50d) running in multiuser mode
memory page size: 4096
system has 8 intel core(s) sse
requested memory: 6096mb (6393085952 bytes)
available memory: 6096mb (6393085952 bytes)
allocated memory: 6096mb (6393085952 bytes) @ local address 0x0000000101000000
attempting memory lock... locked successfully
partitioning memory 2 comparison buffers...
buffer a: 3048mb (3196542976 bytes) starts @ local address 0x0000000101000000
buffer b: 3048mb (3196542976 bytes) starts @ local address 0x00000001bf876000

running 1 test sequence... (ctrl-c quit)

test sequence 1 of 1:

running tests on full 6096mb region...
stuck address : setting 1 of 16 ok
linear prn : setting 1 of 16 ok
running comparison tests using 3048mb buffers...
random value : \ ok
compare xor : ok
compare sub : ok
compare mul : ok
compare div : ok
compare or : ok
compare , : ok
sequential increment: ok
solid bits : setting 1 of 64 ok
block sequential : setting 1 of 256

failure! data mismatch @ local bufa address 0x000000018e71b808, bufb address 0x000000024cf91808
bufa data: 0x7b7b7b7b7b7b737b, bufb data: 0x7b7b7b7b7b7b7b7b

checkerboard : setting 1 of 64

 

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