memtestosx
I just bought and downloaded memtestosx.
Last login: Sun Jan 8 16:14:10 on ttys001 [dan@dent:~] $ /Volumes/memtest_422/memtest/memtest ; exit; Memtest version 4.22 (64-bit) Copyright (C) 2004 Charles Cazabon 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 10.7.2 (11C74) running in multiuser mode Memory Page Size: 4096 System has 8 Intel core(s) with SSE Requested memory: 2099MB (2201194496 bytes) Available memory: 2099MB (2201194496 bytes) Allocated memory: 2099MB (2201194496 bytes) at local address 0x0000000101000000 Attempting memory lock... locked successfully Partitioning memory into 2 comparison buffers... Buffer A: 1049MB (1100597248 bytes) starts at local address 0x0000000101000000 Buffer B: 1049MB (1100597248 bytes) starts at local address 0x000000014299c800 Running 1 test sequence... (CTRL-C to quit) Test sequence 1 of 1: Running tests on full 2099MB region... Stuck Address : ok Linear PRN : ok Running comparison tests using 1049MB 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 : ok Bit Spread : ok Bit Flip : ok Walking Ones : ok Walking Zeroes : ok All tests passed! Execution time: 606 seconds. logout [Process completed]