Memtest86 V11.0 - Address test own address failure

[Macaca]

Hi, MemTest86 support team.

I hope you are doing well.

In the last weeks, I have performed memory tests using MemTest86 on various DDR5 UDIMM modules.
During these tests, I encountered address errors with one particular module: the A-DATA 5600MT/s 32G 2-Ranks DIMM module (AD5U560032G-B).

The address error seems to only happen at the 2-Ranks module, while the 1-Rank modules didn't meet the error.
However, the 2-Ranks module can boot up my system into OS without significant problems.
I am concerned about the potential risk of these address errors. Are they something that should cause alarm?

Here is the test report. I appreciate your assistance.
System Information

EFI Specifications	2.90
System
Manufacturer	Default string
Product Name	Default string
Version	Default string
Serial Number	Default string
BIOS
Vendor	American Megatrends International, LLC.
Version	5.32
Release Date	10/15/2024
Baseboard
Manufacturer	Default string
Product Name	Default string
Version	Default string
Serial Number	Default string
CPU Type	Intel 0000
CPU Clock	2541 MHz [Turbo: 4472.3 MHz]
# Logical Processors	24 (16 enabled for testing)
L1 Cache	32 x 112K (500262 MB/s)
L2 Cache	8 x 3072K (106348 MB/s)
L3 Cache	36864K (36956 MB/s)
Memory	130573M (18510 MB/s)
RAM Configuration	DDR5 4388MT/s / x2 Channel / 32-32-32-64 / 1.100V
Number of RAM SPDs detected	4
SPD #0	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201351
JEDEC Profile	5600MT/s 46-45-45-90 1.1V
SPD #1	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201317
JEDEC Profile	5600MT/s 46-45-45-90 1.1V
SPD #2	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201352
JEDEC Profile	5600MT/s 46-45-45-90 1.1V
SPD #3	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201350
JEDEC Profile	5600MT/s 46-45-45-90 1.1V
Number of RAM slots	6
Number of RAM modules	4
DIMM A1	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201352
SMBIOS Profile	5600MT/s 1.1V
DIMM A2	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201350
SMBIOS Profile	5600MT/s 1.1V
DIMM B1	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201351
SMBIOS Profile	5600MT/s 1.1V
DIMM B2	32GB DDR5 2Rx8 PC5-44800
Vendor Part Info	A-DATA Technology / AD5U560032G-B / 00201317
SMBIOS Profile	5600MT/s 1.1V
DIMM C1	Empty slot
DIMM C2	Empty slot

Result summary

Test Start Time	2024-10-18 16:39:45
Elapsed Time	17:02:32
Memory Range Tested	0x0 - 2070000000 (132864MB)
CPU Selection Mode	Parallel (All CPUs)
CPU Temperature Min/Max/Ave	98C/104C/103C
RAM Temperature Min/Max/Ave
TSOD0	40C/51C/48C
TSOD1	41C/58C/53C
TSOD2	40C/59C/53C
TSOD3	37C/54C/49C
Lowest memory speed	4388 MT/s (32-32-32-64)
Highest memory speed	4388 MT/s (32-32-32-64)
# Tests Completed	48/48 (100%)
# Tests Passed	46/48 (95%)

Lowest Error Address	0xB267010 (178MB)
Highest Error Address	0x206F479C90 (132852MB)
Bits in Error Mask	007D000008EF0004
Bits in Error	15
Max Contiguous Errors	2
CPUs that detected memory errors	{ 0, 2, 5, 6, 7, 8, 9, 10, 14, 15 }

Bits in Error

.	.	.	.	.	.	.	.	.	x	x	x	x	x	.	x	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	.	x	.	.	.	x	x	x	.	x	x	x	x	.	.	.	.	.	.	.	.	.	.	.	.	.	x	.	.
63																																																															0

Test	# Tests Passed	Errors
Test 0 [Address test, walking ones, 1 CPU]	4/4 (100%)	0
Test 1 [Address test, own address, 1 CPU]	3/4 (75%)	42
Test 2 [Address test, own address]	3/4 (75%)	15
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]	4/4 (100%)	0
Test 7 [Moving inversions, 32-bit pattern]	4/4 (100%)	0
Test 8 [Random number sequence]	4/4 (100%)	0
Test 9 [Modulo 20, ones & zeros]	4/4 (100%)	0
Test 10 [Bit fade test, 2 patterns, 1 CPU]	4/4 (100%)	0
Test 13 [Hammer test]	4/4 (100%)	0

Last 10 Errors

2024-10-18 16:40:21 - [Data Error] Test: 2, CPU: 14, Address: 1D77D98610, Expected: 0000001D77D98610, Actual: 000000007FD98610

2024-10-18 16:40:20 - [Data Error] Test: 2, CPU: 7, Address: 1C5B05AF90, Expected: 0000001C5B05AF90, Actual: 000000005B45AF90

2024-10-18 16:40:20 - [Data Error] Test: 2, CPU: 9, Address: 1BA3467650, Expected: 0000001BA3467650, Actual: 00000000A34E7650

2024-10-18 16:40:19 - [Data Error] Test: 2, CPU: 2, Address: 1A0543CD50, Expected: 0000001A0543CD50, Actual: 000000000D43CD50

2024-10-18 16:40:18 - [Data Error] Test: 2, CPU: 9, Address: 17A364E6D0, Expected: 00000017A364E6D0, Actual: 00000000A324E6D0

2024-10-18 16:40:18 - [Data Error] Test: 2, CPU: 7, Address: 175B9761D0, Expected: 000000175B9761D0, Actual: 000000005BD761D0

2024-10-18 16:40:18 - [Data Error] Test: 2, CPU: 6, Address: 1657968410, Expected: 0000001657968410, Actual: 0000000057D68410

2024-10-18 16:40:16 - [Data Error] Test: 2, CPU: 10, Address: 126696F8D0, Expected: 000000126696F8D0, Actual: 0000000066D6F8D0

2024-10-18 16:40:15 - [Data Error] Test: 2, CPU: 8, Address: 10DD6A9650, Expected: 00000010DD6A9650, Actual: 00000000DDEA9650

2024-10-18 16:40:15 - [Data Error] Test: 2, CPU: 7, Address: 109B023890, Expected: 000000109B023890, Actual: 000000009B423890

[David (PassMark)]

I am concerned about the potential risk of these address errors. Are they something that should cause alarm?

RAM errors cause random effects. Sometimes nothing obvious. Sometimes crashes. Sometimes data corruption.
As you have 128GB of RAM, having a few bytes bad might not always be noticeable. But none the less, it should cause some alarm. There shouldn't be any RAM errors. Even one is too many.

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

[Macaca]

RAM errors cause random effects. Sometimes nothing obvious. Sometimes crashes. Sometimes data corruption.
As you have 128GB of RAM, having a few bytes bad might not always be noticeable. But none the less, it should cause some alarm. There shouldn't be any RAM errors. Even one is too many.

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

I got it. Thank you for the support.