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memtest cpu errors and how to do a memory not cpu test

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  • David (PassMark)
    replied
    They aren't CPU errors, they are RAM errors. Memtest86 isn't a CPU testing utility.

    The reference to a CPU in the report, refers to the CPU core that was in use when the RAM error was detected.

    Having a working CPU is obviously required to test the RAM, and on rare occasions a bad CPU will prevent the RAM test from executing, or produce errors. But not in this case. It is 99.9% sure these are RAM errors.

    See also
    https://www.memtest86.com/troubleshooting.htm

    Leave a comment:


  • memtest cpu errors and how to do a memory not cpu test

    had some errors, showing up on cpu 0,1,2 on my ryzen 1700x. i had some weird bsod and random application crashes lately. couldnt figure out what it is. i have never overclocked this computer since i got it. but ive had some problems happening that have gotten worse from rare program crashes to one popping up every few days now. i ran the new memtest and im used to the old one from a floppy disc where it just tests the ram. from what i remembered. so anyway, I ran this and it gives me errors, from the cpu.
    is there 1st, a way to test only the ram to check to see if its not making the cpu error instead alone? what does this error tell me?
    heres the error
    Test Start Time 2019-08-28 01:22:35
    Elapsed Time 0:47:17
    Memory Range Tested 0x0 - 41F380000 (16883MB)
    CPU Selection Mode Parallel (All CPUs)
    ECC Polling Enabled
    # Tests Passed 16/19 (84%)
    Lowest Error Address 0x1BD607A20 (7126MB)
    Highest Error Address 0x1C616B940 (7265MB)
    Bits in Error Mask 0000000000000800
    Bits in Error 1
    Max Contiguous Errors 1
    Test # Tests Passed Errors
    Test 0 [Address test, walking ones, 1 CPU] 2/2 (100%) 0
    Test 1 [Address test, own address, 1 CPU] 2/2 (100%) 0
    Test 2 [Address test, own address] 2/2 (100%) 0
    Test 3 [Moving inversions, ones & zeroes] 2/2 (100%) 0
    Test 4 [Moving inversions, 8-bit pattern] 2/2 (100%) 0
    Test 5 [Moving inversions, random pattern] 2/2 (100%) 0
    Test 6 [Block move, 64-byte blocks] 0/2 (0%) 14
    Test 7 [Moving inversions, 32-bit pattern] 0/1 (0%) 1
    Test 8 [Random number sequence] 1/1 (100%) 0
    Test 9 [Modulo 20, ones & zeros] 1/1 (100%) 0
    Test 10 [Bit fade test, 2 patterns, 1 CPU] 1/1 (100%) 0
    Test 13 [Hammer test] 1/1 (100%) 0
    Last 10 Errors
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 2, Address: 1C616B940, Expected: 40000000, Actual: 40000800
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 2, Address: 1C613B400, Expected: 00000040, Actual: 00000840
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 2, Address: 1C416B960, Expected: 40000000, Actual: 40000800
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 2, Address: 1C413B420, Expected: 00000040, Actual: 00000840
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 1, Address: 1C39AF940, Expected: 00004000, Actual: 00004800
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 1, Address: 1C3463A00, Expected: 00800000, Actual: 00800800
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 1, Address: 1C2287580, Expected: 00000100, Actual: 00000900
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 1, Address: 1C19AF960, Expected: 00004000, Actual: 00004800
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 1, Address: 1C1463A20, Expected: 00800000, Actual: 00800800
    2019-08-28 02:06:01 - [Data Error] Test: 6, CPU: 1, Address: 1C02875A0, Expected: 00000100, Actual: 00000900
    i ran 2 full rounds and the errors were always on cores 0,1, and 2. i had always thought this computer had a problem, like it just didnt run smooth, and always crashed randomnly. not a lot of experience i waited as long as possible to move from xp, with windows 7.
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