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Apple Computing Products:
macOS - Desktop Hardware
iMac random shutdown
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<blockquote data-quote="macnitude" data-source="post: 1464291" data-attributes="member: 279846"><p>Thanks again Chscag, </p><p></p><p>I ran the Memtest and following is the result:</p><p></p><p>memtest all</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 10.6.8 (10K549) running in multiuser mode</p><p>Memory Page Size: 4096</p><p>System has 2 Intel core(s) with SSE</p><p>Requested memory: 2227MB (2335453184 bytes)</p><p>Available memory: 2227MB (2335453184 bytes)</p><p>Allocated memory: 2227MB (2335453184 bytes) at local address 0x0000000101000000</p><p>Attempting memory lock... locked successfully</p><p>Partitioning memory into 2 comparison buffers...</p><p>Buffer A: 1113MB (1167726592 bytes) starts at local address 0x0000000101000000</p><p>Buffer B: 1113MB (1167726592 bytes) starts at local address 0x00000001469a1800</p><p></p><p>Running 1 test sequence... (CTRL-C to quit)</p><p></p><p>Test sequence 1 of 1:</p><p></p><p>Running tests on full 2227MB region...</p><p> Stuck Address : ok </p><p> Linear PRN : ok </p><p>Running comparison tests using 1113MB 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: 1900 seconds.</p><p></p><p><strong></strong></p><p><strong>System Profiler shows 4GB 1067 MHz DDR3 RAMS. </strong></p></blockquote><p></p>
[QUOTE="macnitude, post: 1464291, member: 279846"] Thanks again Chscag, I ran the Memtest and following is the result: memtest all 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 10.6.8 (10K549) running in multiuser mode Memory Page Size: 4096 System has 2 Intel core(s) with SSE Requested memory: 2227MB (2335453184 bytes) Available memory: 2227MB (2335453184 bytes) Allocated memory: 2227MB (2335453184 bytes) at local address 0x0000000101000000 Attempting memory lock... locked successfully Partitioning memory into 2 comparison buffers... Buffer A: 1113MB (1167726592 bytes) starts at local address 0x0000000101000000 Buffer B: 1113MB (1167726592 bytes) starts at local address 0x00000001469a1800 Running 1 test sequence... (CTRL-C to quit) Test sequence 1 of 1: Running tests on full 2227MB region... Stuck Address : ok Linear PRN : ok Running comparison tests using 1113MB 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: 1900 seconds. [B] System Profiler shows 4GB 1067 MHz DDR3 RAMS. [/B] [/QUOTE]
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