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How To Run MemTest Under Mac OS X

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The following guide will show you how to run MemTest under Mac OS X. This will allow you to debug if you have bad ram or a bad over-clock. Originally Posted on here.

 

Guide:

 

Part 1: Installation

 

1. Download MemTest for Mac here

 

2. Go to your Downloads folder and locate the following package:

screen-shot-2012-12-14-at-4-47-08-pm.png

3. Run the MemTest Installer:

screen-shot-2012-12-14-at-4-49-06-pm.png

4. When the install is complete close the installer

Part 2: Running MemTest

1. Open Terminal:

screen-shot-9-10-12-at-1-10-01-am.png

3. The following screen should appear:

screen-shot-2012-12-12-at-12-08-37-am.png?w=640

4. Type in the following into terminal:

memtest all 2

Or
memtest all

 

5. Then press Enter

 

6. The following screen should appear:

screen-shot-2012-12-14-at-4-18-22-pm.png

7. Now wait for the results as this my take a few hours to running depending on the amount of ram you are using

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      0xffffffa762b0ba30 : 0xffffff800315bca0 
      0xffffffa762b0ba50 : 0xffffff80031ae517 
      0xffffffa762b0bb70 : 0xffffff80031ae363 
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      0xffffffa762b0bcd0 : 0xffffff80032bcaf7 
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      0xffffffa762b0be80 : 0xffffff800324b3d2 
      0xffffffa762b0bec0 : 0xffffff80031a1833 
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      Kernel UUID: 56B30885-F9BA-30E8-AD1C-5D59EC243BA9
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      com.apple.iokit.IOSurface    255.1
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    • By ITzTravelInTime
      Hi guys, this thread is to show you a new and open source app, created by me, that I called TINU:
       
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      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 10.13.2 (17C88) running in multiuser mode Memory Page Size: 4096 System has 12 Intel core(s) with SSE Requested memory: 57232MB (60012990464 bytes) Available memory: 57232MB (60012990464 bytes) Allocated memory: 57232MB (60012990464 bytes) at local address 0x00000001033e1000 Attempting memory lock... locked successfully Partitioning memory into 2 comparison buffers... Buffer A: 28616MB (30006495232 bytes) starts at local address 0x00000001033e1000 Buffer B: 28616MB (30006495232 bytes) starts at local address 0x00000007ffc4d800 Running 1 test sequence... (CTRL-C to quit) Test sequence 1 of 1: Running tests on full 57232MB region... Stuck Address : ok Linear PRN : testing 7 of 16 FAILURE! Data mismatch at local address 0x0000000e88133d30 Expected Data: 0xc4c340079ac9a645, Actual Data: 0xc4c3400788468846 Running comparison tests using 28616MB 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 : testing 80 of 256 FAILURE! Data mismatch at local BUFA address 0x000000078b8c7530, BUFB address 0x0000000e88133d30 BUFA Data: 0x4f4f4f4f4f4f4f4f, BUFB Data: 0x4f4f4f4f88468846 Checkerboard : testing 3 of 64 FAILURE! Data mismatch at local BUFA address 0x000000078b8c7530, BUFB address 0x0000000e88133d30 BUFA Data: 0x5555555555555555, BUFB Data: 0x5555555588468846 Bit Spread : testing 1 of 128 FAILURE! Data mismatch at local BUFA address 0x000000078b8c7530, BUFB address 0x0000000e88133d30 BUFA Data: 0x0000000000000005, BUFB Data: 0x0000000088468846 Bit Flip : testing 74 of 512 FAILURE! Data mismatch at local BUFA address 0x000000078b8c7530, BUFB address 0x0000000e88133d30 BUFA Data: 0x0000000000000200, BUFB Data: 0x0000000088468846 Walking Ones : testing 40 of 128 Clover Files attached
      config.plist
      drivers64UEFI.zip
      kexts.zip
      ACPI.zip
    • By DaniiSwan
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      I'm attempting the install on a Lenovo Thinkpad Edge E530 with an Intel Core i5-3360m and Intel HD 4000 graphics. If any further information is required , feel free to ask
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