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Apple Computing Products:
macOS - Notebook Hardware
Early 2011 Macbook Randomly rebooting
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<blockquote data-quote="mtb-knight" data-source="post: 1518392" data-attributes="member: 303113"><p>Mem Test results:</p><p></p><p>Memtest version 4.22 (64-bit)</p><p>Copyright (C) 2004 Charles Cazabon</p><p>Copyright (C) 2004-2008 Tony Scaminaci (Macintosh port)</p><p>Licensed under the GNU General Public License version 2 only</p><p></p><p>Mac OS X 10.8.3 (12D78) running in multiuser mode</p><p>Memory Page Size: 4096</p><p>System has 4 Intel core(s) with SSE</p><p>Requested memory: 1608MB (1686585344 bytes)</p><p>Available memory: 1608MB (1686585344 bytes)</p><p>Allocated memory: 1608MB (1686585344 bytes) at local address 0x0000000101000000</p><p>Attempting memory lock... locked successfully</p><p>Partitioning memory into 2 comparison buffers...</p><p>Buffer A: 804MB (843292672 bytes) starts at local address 0x0000000101000000</p><p>Buffer B: 804MB (843292672 bytes) starts at local address 0x000000013343a000</p><p></p><p>Running 2 test sequences... (CTRL-C to quit)</p><p></p><p>Test sequence 1 of 2:</p><p></p><p>Running tests on full 1608MB region...</p><p> Stuck Address : ok </p><p> Linear PRN : ok </p><p>Running comparison tests using 804MB buffers...</p><p> Random Value : ok </p><p> Compare XOR : ok </p><p> Compare SUB : ok </p><p> Compare MUL : ok </p><p> Compare DIV : ok </p><p> Compare OR : ok </p><p> Compare AND : ok </p><p> Sequential Increment: ok </p><p> Solid Bits : ok </p><p> Block Sequential : ok </p><p> Checkerboard : ok </p><p> Bit Spread : ok </p><p> Bit Flip : ok </p><p> Walking Ones : ok </p><p> Walking Zeroes : ok </p><p></p><p>Test sequence 2 of 2:</p><p></p><p>Running tests on full 1608MB region...</p><p> Stuck Address : ok </p><p> Linear PRN : ok </p><p>Running comparison tests using 804MB buffers...</p><p> Random Value : ok </p><p> Compare XOR : ok </p><p> Compare SUB : ok </p><p> Compare MUL : ok </p><p> Compare DIV : ok </p><p> Compare OR : ok </p><p> Compare AND : ok </p><p> Sequential Increment: ok </p><p> Solid Bits : ok </p><p> Block Sequential : ok </p><p> Checkerboard : ok </p><p> Bit Spread : ok </p><p> Bit Flip : ok </p><p> Walking Ones : ok </p><p> Walking Zeroes : ok </p><p></p><p>All tests passed! Execution time: 1048 seconds.</p></blockquote><p></p>
[QUOTE="mtb-knight, post: 1518392, member: 303113"] Mem Test results: 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 Mac OS X 10.8.3 (12D78) running in multiuser mode Memory Page Size: 4096 System has 4 Intel core(s) with SSE Requested memory: 1608MB (1686585344 bytes) Available memory: 1608MB (1686585344 bytes) Allocated memory: 1608MB (1686585344 bytes) at local address 0x0000000101000000 Attempting memory lock... locked successfully Partitioning memory into 2 comparison buffers... Buffer A: 804MB (843292672 bytes) starts at local address 0x0000000101000000 Buffer B: 804MB (843292672 bytes) starts at local address 0x000000013343a000 Running 2 test sequences... (CTRL-C to quit) Test sequence 1 of 2: Running tests on full 1608MB region... Stuck Address : ok Linear PRN : ok Running comparison tests using 804MB 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 Test sequence 2 of 2: Running tests on full 1608MB region... Stuck Address : ok Linear PRN : ok Running comparison tests using 804MB 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: 1048 seconds. [/QUOTE]
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Early 2011 Macbook Randomly rebooting
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