J'ai un tout nouveau MacBook Pro Retina (8 Go, 256 Go SSD), qui connaît quelques problèmes depuis quelques semaines.
J'ai décidé d'exécuter memtest après une réinstallation complète d'OS X.
Voici le journal :
Copyright (C) 2004-2008 Tony Scaminaci (Macintosh port)
Licensed under the GNU General Public License version 2 only
NOTE: No command-line arguments have been specified
Using defaults: Test all available memory, one test pass, no logfile
Mac OS X 10.9.4 (13E28) running in multiuser mode
Memory Page Size: 4096
System has 4 Intel core(s) with SSE
Requested memory: 5943MB (6232047616 bytes)
Available memory: 5943MB (6232047616 bytes)
Allocated memory: 5943MB (6232047616 bytes) at local address 0x0000000101000000
Attempting memory lock... locked successfully
Partitioning memory into 2 comparison buffers...
Buffer A: 2971MB (3116023808 bytes) starts at local address 0x0000000101000000
Buffer B: 2971MB (3116023808 bytes) starts at local address 0x00000001babac000
Running 1 test sequence... (CTRL-C to quit)
Test sequence 1 of 1:
Running tests on full 5943MB region...
Stuck Address : ok
Linear PRN : ok
Running comparison tests using 2971MB buffers...
Random Value : ok
Compare XOR : ok
Compare SUB : ok
Compare MUL : ok
Compare DIV : ok
Compare OR : ok
Compare AND : ok
Sequential Increment: ok
Solid Bits : ok
Block Sequential : ok
Checkerboard : testing 19 of 64
FAILURE! Data mismatch at local BUFA address 0x00000001a144b978, BUFB address 0x000000025aff7978
BUFA Data: 0xaaaaaaaaaaaaaaae, BUFB Data: 0xaaaaaaaaaaaaaaaa
Bit Spread : testing 1 of 128
FAILURE! Data mismatch at local BUFA address 0x00000001a42e09f8, BUFB address 0x000000025de8c9f8
BUFA Data: 0xfffffffffffffffe, BUFB Data: 0xfffffffffffffffa
Bit Flip : testing 3 of 512
FAILURE! Data mismatch at local BUFA address 0x00000001a0d4f978, BUFB address 0x000000025a8fb978
BUFA Data: 0x0000000000000005, BUFB Data: 0x0000000000000001
Walking Ones : testing 3 of 128
FAILURE! Data mismatch at local BUFA address 0x00000001a18c1978, BUFB address 0x000000025b46d978
BUFA Data: 0xffffffffffffffff, BUFB Data: 0xfffffffffffffffb
Walking Zeroes : testing 4 of 128
FAILURE! Data mismatch at local BUFA address 0x00000001a21bd978, BUFB address 0x000000025bd69978
BUFA Data: 0x000000000000000c, BUFB Data: 0x0000000000000008
*** Memory Test Failed *** Please check transcript for details.
Execution time: 512 seconds.Les gars de l'Apple Store sont sûrs qu'il n'y a pas de problème avec la RAM.
Alors pourquoi le Memtest échoue ? Est-ce normal ?
