FAIL

Summary

Report Date 2026-01-31 03:14:16
Generated by MemTest86 V11.6 Pro (64-bit)
Result FAIL

System Information

EFI Specifications 2.70
System
Manufacturer To Be Filled By O.E.M.
Product Name B550 Taichi
Version To Be Filled By O.E.M.
Serial Number To Be Filled By O.E.M.
BIOS
Vendor American Megatrends International, LLC.
Version P3.90
Release Date 09/30/2025
Baseboard
Manufacturer ASRock
Product Name B550 Taichi
Version
Serial Number M80-D6026000256
CPU Type AMD Ryzen 7 5800X 8-Core
CPU Clock 3794 MHz [Turbo: 4667.1 MHz]
# Logical Processors 16 (8 enabled for testing)
L1 Cache 16 x 64K (276717 MB/s)
L2 Cache 16 x 512K (103806 MB/s)
L3 Cache 1 x 32768K (55241 MB/s)
Memory 16321M (26852 MB/s)
RAM Configuration DDR4 3600MT/s / x1 Channel / 16-19-19-39 / 1.200V
Number of RAM SPDs detected 1
SPD #0 16GB DDR4 XMP 2Rx8 PC4-28800
Vendor Part Info G Skill Intl / F4-3600C16-16GTZNC
JEDEC Profile 2134MT/s 15-15-15-36 1.2V
XMP Profile 1 3602MT/s 16-19-19-39 1.35V
Number of RAM slots 4
Number of RAM modules 1
DIMM A1 Empty slot
DIMM A2 16GB DDR4 2R PC4-28800
Vendor Part Info Unknown / F4-3600C16-16GTZNC / 00000000
SMBIOS Profile 3600MT/s 1.2V
DIMM B1 Empty slot
DIMM B2 Empty slot

Result summary

Test Start Time2026-01-31 02:43:45
Elapsed Time0:29:01
Memory Range Tested 0x0 - 440000000 (17408MB)
CPU Selection Mode Parallel (All CPUs)
CPU Temperature Min/Max/Ave 35C/66C/47C
RAM Temperature Min/Max/Ave
TSOD0 33C/40C/36C
Lowest memory speed 3600 MT/s (16-19-19-39)
Highest memory speed 3600 MT/s (16-19-19-39)
# Tests Completed 14/14 (100%)
# Tests Passed 3/14 (21%)
Lowest Error Address0x16D641454 (5846MB)
Highest Error Address0x16F643C88 (5878MB)
Bits in Error Mask0A0000000A000000
Bits in Error4
Max Contiguous Errors1
CPUs that detected memory errors{ 0, 8 }
Bits in Error
....x.x.............................x.x.........................
630
DIMM/Chip Serial Number # of Ranks Errors Result
DIMM A2 00000000 2Rx8 170 FAIL
Unknown 49
Test # Tests Passed Errors
Test 0 [Address test, walking ones, 1 CPU] 1/1 (100%) 0
Test 1 [Address test, own address, 1 CPU] 1/1 (100%) 0
Test 2 [Address test, own address] 1/1 (100%) 0
Test 3 [Moving inversions, ones & zeroes] 0/1 (0%) 6
Test 4 [Moving inversions, 8-bit pattern] 0/1 (0%) 24
Test 5 [Moving inversions, random pattern] 0/1 (0%) 36
Test 6 [Block move, 64-byte blocks] 0/1 (0%) 49
Test 7 [Moving inversions, 32-bit pattern] 0/1 (0%) 93
Test 8 [Random number sequence] 0/1 (0%) 20
Test 9 [Modulo 20, random pattern] 0/1 (0%) 2
Test 10 [Bit fade test, 2 patterns, 1 CPU] 0/1 (0%) 2
Test 11 [Random number sequence, 64-bit] 0/1 (0%) 17
Test 12 [Random number sequence, 128-bit] 0/1 (0%) 12
Test 13 [Hammer test] 0/1 (0%) 9
Last 10 Errors
2026-01-31 03:12:39 - [Data Error] Test: 13, CPU: 0, Address: 16D64251C/A2, Expected: 4E3C9BC4, Actual: 463C9BC4 (S/N: 00000000)
2026-01-31 03:11:59 - [Data Error] Test: 13, CPU: 0, Address: 16D643F8C/A2, Expected: E5558FCA, Actual: E7558FCA (S/N: 00000000)
2026-01-31 03:11:56 - [Data Error] Test: 13, CPU: 0, Address: 16D64251C/A2, Expected: 0BC5450E, Actual: 03C5450E (S/N: 00000000)
2026-01-31 03:11:36 - [Data Error] Test: 13, CPU: 0, Address: 16D643F8C/A2, Expected: 795F1C5D, Actual: 7B5F1C5D (S/N: 00000000)
2026-01-31 03:11:17 - [Data Error] Test: 13, CPU: 0, Address: 16D643E04/A2, Expected: AA9D8B1A, Actual: A89D8B1A (S/N: 00000000)
2026-01-31 03:11:17 - [Data Error] Test: 13, CPU: 0, Address: 16D643A4C/A2, Expected: C972C0F4, Actual: CB72C0F4 (S/N: 00000000)
2026-01-31 03:10:58 - [Data Error] Test: 13, CPU: 0, Address: 16D643F8C/A2, Expected: C0877A2F, Actual: C2877A2F (S/N: 00000000)
2026-01-31 03:10:58 - [Data Error] Test: 13, CPU: 0, Address: 16D64251C/A2, Expected: CAD69483, Actual: C2D69483 (S/N: 00000000)
2026-01-31 03:10:38 - [Data Error] Test: 13, CPU: 0, Address: 16D643E04/A2, Expected: 33EF5D94, Actual: 31EF5D94 (S/N: 00000000)
2026-01-31 03:08:36 - [Data Error] Test: 12, CPU: 8, Address: 16D643800/A2, Expected: 43E308DAEA426555BF8B2358806D6555, Actual: 43E308DAEA426555BD8B2358806D6555 (S/N: 00000000)
Temporary workaround for Grub2 Linux: BadRAM filtering

For Unix-based distributions that use GRUB2 as a bootloader, BadRAM filtering can be used to exclude known defective memory addreses from being used by the operating system. This temporary workaround can be applied as follows:

  1. Copy & paste the following faulty memory ranges to /etc/default/grub:
  2. GRUB_BADRAM="0x00000016D642000,0xFFFFFFFFFFFFE000,0x00000016D641000,0xFFFFFFFFFFFFF000,0x00000016F641000,0xFFFFFFFFFFFFF000,0x00000016F642000,0xFFFFFFFFFFFFE000"
  3. Open and terminal and run the following command
  4. sudo update-grub
Warning: Masking faulty memory addresses does not fix defective RAM, but provides a temporary workaround for allowing the system to boot. Please consult the FAQ for more details
Temporary workaround for Windows: badmemorylist filtering in BCD store

For Windows Vista and later, the Boot Configuration Data (BCD) store can be used to exclude physical page frames (PFN) from being used by the operating system. This temporary workaround can be applied as follows:

  1. Open the Command Prompt (as Adminstrator) either from Windows or System Recovery options
  2. Run the following command to enable memory blacklisting:
  3. bcdedit /set {badmemory} badmemoryaccess no
  4. Run the following command to blacklist the faulty page frame numbers (PFN):
  5. bcdedit /set {badmemory} badmemorylist 0x16D642 0x16D643 0x16D641 0x16F641 0x16F642 0x16F643
Warning: Masking faulty memory addresses does not fix defective RAM, but provides a temporary workaround for allowing the system to boot. Please consult the FAQ for more details