The log information of Memtest86

[YANG]

Hello, I have a question about the ERROR information in the log file. For both DDR4 and DDR5 test results, the test Expected bits seems to be 32, such as "[MEM ERROR - Data] Test: 5, CPU: 6, Address: 15A7EA80/B2-U0, Expected: 63C0AFF3, Actual: 63C0AFF7". Why is it not 64bits? In my opinion, the bit width is 64bits for DDR4 or DDR5.

[David (PassMark)]

Some tests only load and store 32bits of data at a time.
(Some are 64bit or 128bit however, tests #11 and #12)

But due to caching a entire cache line will often be fetched from RAM (maybe 64bytes at a time, depending on hardware).