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| -rw-r--r-- | util/autoport/readme.md | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/util/autoport/readme.md b/util/autoport/readme.md index cfa8c36a38..fa349b906f 100644 --- a/util/autoport/readme.md +++ b/util/autoport/readme.md @@ -268,6 +268,12 @@ If several slots are soldered there are two ways to handle them: not forget to copy the data on all the array elements that need it. * If they use different data, use several files. +If memory initialization is not working, in particular write training (timB) +on DIMM's second rank fails, try enbling rank 1 mirroring, which can't be +detected by inteltool. It is described by SPD field "Address Mapping from Edge +Connector to DRAM", byte `63` (`0x3f`). Bit 0 describes Rank 1 Mapping, +0 = standard, 1 = mirrored; set it to 1. Bits 1-7 are reserved. + ### `board_info.txt` `board_info.txt` is a text file used in the board status page to list all |