Question Memtest errors

Feb 6, 2021
8
0
10
Hello, after a few crashes I decided to format my PC and then run memtest to check if there are any problems.
I have 2x ddr3 ram and the test failed, then I've tried again to run it with 1 single ram in slot 1.
Again, test failed, with different errors.
Tried the other ram, in slot 1, no errors.
Then I tried again the ram that previously failed, this time in slot 2 just to be sure I identified the faulty hardware and got no errors, at this point I'm very confused.
How should I proceed with the troubleshooting? I can run longer tests but it takes a lot of time and I'm not sure if I have to test both the rams in every single slot channel, it will take several days so I'm open to advice.
I'm also not sure how to read the errors so if you could help me it would be greatly appreciated, I'll post the HTML reports for dual and single channel tests:

Thank you very much

Test results:
Dual channel fail:

Summary
Report Date2021-06-19 11:21:55
Generated byMemTest86 V9.1 Free (64-bit)
Visit MemTest86.com to Upgrade to Pro
ResultFAIL
System Information
EFI Specifications2.31
System
ManufacturerASUS
Product NameAll Series
VersionSystem Version
Serial NumberSystem Serial Number
BIOS
VendorAmerican Megatrends Inc.
Version2012
Release Date09/30/2014
Baseboard
ManufacturerASUSTeK COMPUTER INC.
Product NameZ97-PRO
VersionRev 1.xx
Serial Number141236866300979
CPU TypeIntel Core i7-4790K @ 4.00GHz
CPU Clock3998 MHz [Turbo: 4197.6 MHz]
# Logical Processors8 (4 enabled for testing)
L1 Cache4 x 64K (214823 MB/s)
L2 Cache4 x 256K (63420 MB/s)
L3 Cache8192K (46054 MB/s)
Memory16340M (19177 MB/s)
Number of RAM SPDs detected2
SPD #08GB DDR3 XMP PC3-12800
Crucial Technology / BLS8G3D1609DS1S00. / 37330294
9-9-9-24 / 1600 MHz / 1.500V
SPD #18GB DDR3 XMP PC3-12800
Crucial Technology / BLS8G3D1609DS1S00. / 3733007A
9-9-9-24 / 1600 MHz / 1.500V
Number of RAM slots4
Number of RAM modules2
DIMM Slot #08GB DDR3 PC3-12800
1315 / BLS8G3D1609DS1S00. / 37330294
1600 MHz
DIMM Slot #1Empty slot
DIMM Slot #28GB DDR3 PC3-12800
1315 / BLS8G3D1609DS1S00. / 3733007A
1600 MHz
DIMM Slot #3Empty slot
Result summary
Test Start Time2021-06-19 04:01:57
Elapsed Time2:40:24
Memory Range Tested0x0 - 43F000000 (17392MB)
CPU Selection ModeParallel (All CPUs)
CPU Temperature Min/Max/Ave47C/68C/57C
RAM Temperature Min/Max/Ave-/-/-
# Tests Passed43/48 (89%)

Lowest Error Address0x3F29865A8 (16169MB)
Highest Error Address0x3F7587898 (16245MB)
Bits in Error Mask0000000009000000
Bits in Error2
Max Contiguous Errors1
CPUs in Error2, 4, 6

Test# Tests PassedErrors
Test 0 [Address test, walking ones, 1 CPU]4/4 (100%)0
Test 1 [Address test, own address, 1 CPU]4/4 (100%)0
Test 2 [Address test, own address]4/4 (100%)0
Test 3 [Moving inversions, ones & zeroes]4/4 (100%)0
Test 4 [Moving inversions, 8-bit pattern]4/4 (100%)0
Test 5 [Moving inversions, random pattern]4/4 (100%)0
Test 6 [Block move, 64-byte blocks]3/4 (75%)2
Test 7 [Moving inversions, 32-bit pattern]1/4 (25%)3
Test 8 [Random number sequence]4/4 (100%)0
Test 9 [Modulo 20, ones & zeros]3/4 (75%)1
Test 10 [Bit fade test, 2 patterns, 1 CPU]4/4 (100%)0
Test 13 [Hammer test]4/4 (100%)0

Last 10 Errors
2021-06-19 06:29:17 - [Data Error] Test: 9, CPU: 4, Address: 3F7587898, Expected: 5E87E5A5, Actual: 5F87E5A5
2021-06-19 06:16:36 - [Data Error] Test: 7, CPU: 6, Address: 3F29865A8, Expected: F7FFFFFF, Actual: FFFFFFFF
2021-06-19 05:31:06 - [Data Error] Test: 7, CPU: 2, Address: 3F37A6828, Expected: 02000000, Actual: 0A000000
2021-06-19 04:45:49 - [Data Error] Test: 7, CPU: 6, Address: 3F29865A8, Expected: F7FFFFFF, Actual: FFFFFFFF
2021-06-19 04:35:26 - [Data Error] Test: 6, CPU: 4, Address: 3F73A7748, Expected: 02000000, Actual: 0A000000
2021-06-19 04:35:26 - [Data Error] Test: 6, CPU: 4, Address: 3F53A7768, Expected: 02000000, Actual: 0A000000
Certification
This document certifies that the Tests described above have been carried out by a suitably qualified technician on the System described above.
Signed

___
Your company name here
123 Your Address, City, Country
Phone 123-456-7890
E-Mail: info@your-company-name.com


Single channel fail:

Summary
Report Date2021-06-19 12:20:23
Generated byMemTest86 V9.1 Free (64-bit)
Visit MemTest86.com to Upgrade to Pro
ResultFAIL
System Information
EFI Specifications2.31
System
ManufacturerASUS
Product NameAll Series
VersionSystem Version
Serial NumberSystem Serial Number
BIOS
VendorAmerican Megatrends Inc.
Version2012
Release Date09/30/2014
Baseboard
ManufacturerASUSTeK COMPUTER INC.
Product NameZ97-PRO
VersionRev 1.xx
Serial Number141236866300979
CPU TypeIntel Core i7-4790K @ 4.00GHz
CPU Clock3998 MHz [Turbo: 4197.6 MHz]
# Logical Processors8 (4 enabled for testing)
L1 Cache4 x 64K (220043 MB/s)
L2 Cache4 x 256K (63495 MB/s)
L3 Cache8192K (45384 MB/s)
Memory8148M (11097 MB/s)
Number of RAM SPDs detected1
SPD #08GB DDR3 XMP PC3-12800
Crucial Technology / BLS8G3D1609DS1S00. / 37330294
9-9-9-24 / 1600 MHz / 1.500V
Number of RAM slots4
Number of RAM modules1
DIMM Slot #08GB DDR3 PC3-12800
1315 / BLS8G3D1609DS1S00. / 37330294
1600 MHz
DIMM Slot #1Empty slot
DIMM Slot #2Empty slot
DIMM Slot #3Empty slot
Result summary
Test Start Time2021-06-19 11:57:15
Elapsed Time0:22:46
Memory Range Tested0x0 - 23F000000 (9200MB)
CPU Selection ModeParallel (All CPUs)
CPU Temperature Min/Max/Ave50C/63C/55C
RAM Temperature Min/Max/Ave-/-/-
# Tests Passed14/15 (93%)

Lowest Error Address0x1F94C32A8 (8084MB)
Highest Error Address0x1F94C32A8 (8084MB)
Bits in Error Mask0000000008000000
Bits in Error1
Max Contiguous Errors1
CPUs in Error6

Test# Tests PassedErrors
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]1/1 (100%)0
Test 4 [Moving inversions, 8-bit pattern]1/1 (100%)0
Test 5 [Moving inversions, random pattern]1/1 (100%)0
Test 6 [Block move, 64-byte blocks]1/1 (100%)0
Test 7 [Moving inversions, 32-bit pattern]1/1 (100%)0
Test 8 [Random number sequence]1/1 (100%)0
Test 9 [Modulo 20, ones & zeros]0/1 (0%)1
Test 10 [Bit fade test, 2 patterns, 1 CPU]1/1 (100%)0
Test 13 [Hammer test]1/1 (100%)0

Last 10 Errors
2021-06-19 12:08:28 - [Data Error] Test: 9, CPU: 6, Address: 1F94C32A8, Expected: A8883BB9, Actual: A0883BB9
 
Last edited by a moderator:
Feb 6, 2021
8
0
10
I continued testing and now it also failed on slot channel 2, again different error on test 6 instead of 9. I guess i'll test longer the other ram slot to see if it's the ram or something else, should be safe to say it's ram or could it be CPU or other hardware?

edit: after some more test I think one ram is just faulty, I will order new ones.
 
Last edited: