- Aug 28, 2004
- 403
- 2
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I have frequent crashes on my new build (see sig). Seems to only crash when it's completely idle for a while. I thought it was several different things along the way. The last thing I investigated was bad RAM.
I have a asus maximus vii impact motherboard (with latest BIOS) with 16gb of corsair dominator platinum (2x8gb) (CMD16GX3M2A1600C9). The RAM is rated for DDR3 1600, Timing 9-9-9-24. It defaults to 1333 but I load the XMP profile and it runs at the rated timings, nothing is overclocked.
I made a memtest86 bootable USB and ran the full tests (see below). Obviously it looks like the RAM has completely failed (it showed over 2 millions errors), however the machine runs and is stable all the time except idle. If it was that bad I'm not sure the machine would even run?
I then booted back in to Windows and ran 5 copies of HCI Design Memtest simultaneously, each for 2047mb of RAM. It ran overnight ... no errors found, each ran over 1000% coverage. Shouldn't it have found something?
Did I run Memtest86 incorrectly for it to find so many errors? Something doesn't seem right.
Memtest86 Summary:
Report Date - 2014-11-02 00:19:09
Generated by - MemTest86 V5.1.0 Free (64-bit)
Result - FAIL
System Information
EFI Specifications - 2.31
CPU type - Intel Core i7-4790K @ 4.00GHz
Measured CPU Speed - 4000 MHz [Turbo: 4080.0 MHz]
# Logical Processors - 8
L1 Cache - 64K (204927 MB/s)
L2 Cache - 256K (62152 MB/s)
L3 Cache - 8192K (44406 MB/s)
RAM - 16431M (19147 MB/s)
Result summary
Test Start time - 2014-11-01 18:25:26
Elapsed Time - 5:52:26
Memory Range Tested - 0x0 - 41FE00000 (16894MB)
CPU Selection Mode - Single (CPU #0)
# Tests Passed - 4/44 (9%)
Lowest Error Address - 0x2E01F248 (736MB)
Highest Error Address - 0x400D3D70 (1024MB)
Bits in Error Mask - 0000080000000800
Bits in Error - 2
Max Contiguous Errors - 1
Test # Tests Passed - Errors
Test 0 [Address test, walking ones, 1 CPU] - 4/4 (100%) 0
Test 1 [Address test, own address, 1 CPU] - 0/4 (0%) 3984
Test 2 [Address test, own address] - 0/4 (0%) 3967
Test 3 [Moving inversions, ones & zeroes] - 0/4 (0%) 80435
Test 4 [Moving inversions, 8-bit pattern] - 0/4 (0%) 326047
Test 5 [Moving inversions, random pattern] - 0/4 (0%) 411504
Test 6 [Block move, 64-byte blocks] - 0/4 (0%) 231339
Test 7 [Moving inversions, 32-bit pattern] - 0/4 (0%) 1287670
Test 8 [Random number sequence] - 0/4 (0%) 176867
Test 9 [Modulo 20, ones & zeros] - 0/4 (0%) 41307
Test 10 [Bit fade test, 2 patterns, 1 CPU] - 0/4 (0%) 8599
Last 10 Errors
[Data Error] Test: 10, CPU: 0, Address: 3FB6B30C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3F14B30C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3EFA730C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3EC1F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3E4D338C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3E41F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3E14B30C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3DEF338C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3DE3F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3DB2F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
I have a asus maximus vii impact motherboard (with latest BIOS) with 16gb of corsair dominator platinum (2x8gb) (CMD16GX3M2A1600C9). The RAM is rated for DDR3 1600, Timing 9-9-9-24. It defaults to 1333 but I load the XMP profile and it runs at the rated timings, nothing is overclocked.
I made a memtest86 bootable USB and ran the full tests (see below). Obviously it looks like the RAM has completely failed (it showed over 2 millions errors), however the machine runs and is stable all the time except idle. If it was that bad I'm not sure the machine would even run?
I then booted back in to Windows and ran 5 copies of HCI Design Memtest simultaneously, each for 2047mb of RAM. It ran overnight ... no errors found, each ran over 1000% coverage. Shouldn't it have found something?
Did I run Memtest86 incorrectly for it to find so many errors? Something doesn't seem right.
Memtest86 Summary:
Report Date - 2014-11-02 00:19:09
Generated by - MemTest86 V5.1.0 Free (64-bit)
Result - FAIL
System Information
EFI Specifications - 2.31
CPU type - Intel Core i7-4790K @ 4.00GHz
Measured CPU Speed - 4000 MHz [Turbo: 4080.0 MHz]
# Logical Processors - 8
L1 Cache - 64K (204927 MB/s)
L2 Cache - 256K (62152 MB/s)
L3 Cache - 8192K (44406 MB/s)
RAM - 16431M (19147 MB/s)
Result summary
Test Start time - 2014-11-01 18:25:26
Elapsed Time - 5:52:26
Memory Range Tested - 0x0 - 41FE00000 (16894MB)
CPU Selection Mode - Single (CPU #0)
# Tests Passed - 4/44 (9%)
Lowest Error Address - 0x2E01F248 (736MB)
Highest Error Address - 0x400D3D70 (1024MB)
Bits in Error Mask - 0000080000000800
Bits in Error - 2
Max Contiguous Errors - 1
Test # Tests Passed - Errors
Test 0 [Address test, walking ones, 1 CPU] - 4/4 (100%) 0
Test 1 [Address test, own address, 1 CPU] - 0/4 (0%) 3984
Test 2 [Address test, own address] - 0/4 (0%) 3967
Test 3 [Moving inversions, ones & zeroes] - 0/4 (0%) 80435
Test 4 [Moving inversions, 8-bit pattern] - 0/4 (0%) 326047
Test 5 [Moving inversions, random pattern] - 0/4 (0%) 411504
Test 6 [Block move, 64-byte blocks] - 0/4 (0%) 231339
Test 7 [Moving inversions, 32-bit pattern] - 0/4 (0%) 1287670
Test 8 [Random number sequence] - 0/4 (0%) 176867
Test 9 [Modulo 20, ones & zeros] - 0/4 (0%) 41307
Test 10 [Bit fade test, 2 patterns, 1 CPU] - 0/4 (0%) 8599
Last 10 Errors
[Data Error] Test: 10, CPU: 0, Address: 3FB6B30C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3F14B30C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3EFA730C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3EC1F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3E4D338C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3E41F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3E14B30C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3DEF338C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3DE3F38C, Expected: FFFFFFFF, Actual: FFFFF7FF
[Data Error] Test: 10, CPU: 0, Address: 3DB2F38C, Expected: FFFFFFFF, Actual: FFFFF7FF