diff --git a/src/mainboard/google/dedede/variants/galtic/memory/Makefile.inc b/src/mainboard/google/dedede/variants/galtic/memory/Makefile.inc
index 016e8ea290..7b9f433b2d 100644
--- a/src/mainboard/google/dedede/variants/galtic/memory/Makefile.inc
+++ b/src/mainboard/google/dedede/variants/galtic/memory/Makefile.inc
@@ -4,6 +4,6 @@
 # util/spd_tools/bin/part_id_gen JSL lp4x src/mainboard/google/dedede/variants/galtic/memory src/mainboard/google/dedede/variants/galtic/memory/mem_parts_used.txt
 
 SPD_SOURCES =
-SPD_SOURCES += spd/lp4x/set-1/spd-1.hex      # ID = 0(0b0000)  Parts = H9HCNNNBKMMLXR-NEE, MT53E512M32D2NP-046 WT:E
+SPD_SOURCES += spd/lp4x/set-1/spd-1.hex      # ID = 0(0b0000)  Parts = H9HCNNNBKMMLXR-NEE, MT53E512M32D2NP-046 WT:E, K4U6E3S4AA-MGCR
 SPD_SOURCES += spd/lp4x/set-1/spd-4.hex      # ID = 1(0b0001)  Parts = MT53E1G32D2NP-046 WT:A
 SPD_SOURCES += spd/lp4x/set-1/spd-3.hex      # ID = 2(0b0010)  Parts = H9HCNNNCPMMLXR-NEE
diff --git a/src/mainboard/google/dedede/variants/galtic/memory/dram_id.generated.txt b/src/mainboard/google/dedede/variants/galtic/memory/dram_id.generated.txt
index 9d92cf1f97..8d15cd91ab 100644
--- a/src/mainboard/google/dedede/variants/galtic/memory/dram_id.generated.txt
+++ b/src/mainboard/google/dedede/variants/galtic/memory/dram_id.generated.txt
@@ -6,5 +6,6 @@
 DRAM Part Name                 ID to assign
 H9HCNNNBKMMLXR-NEE             0 (0000)
 MT53E512M32D2NP-046 WT:E       0 (0000)
+K4UBE3D4AA-MGCR                0 (0000)
 MT53E1G32D2NP-046 WT:A         1 (0001)
 H9HCNNNCPMMLXR-NEE             2 (0010)
diff --git a/src/mainboard/google/dedede/variants/galtic/memory/mem_parts_used.txt b/src/mainboard/google/dedede/variants/galtic/memory/mem_parts_used.txt
index b92e5f1cb9..03c8be07f5 100644
--- a/src/mainboard/google/dedede/variants/galtic/memory/mem_parts_used.txt
+++ b/src/mainboard/google/dedede/variants/galtic/memory/mem_parts_used.txt
@@ -1,4 +1,11 @@
+# This is a CSV file containing a list of memory parts used by this variant.
+# Generate an updated Makefile.inc and dram_id.generated.txt by running the
+# gen_part_id tool from util/spd_tools/lp4x
+# See util/spd_tools/lp4x/README.md for more details and instructions.
+
+# Part Name
 H9HCNNNBKMMLXR-NEE
 MT53E512M32D2NP-046 WT:E
+K4UBE3D4AA-MGCR
 MT53E1G32D2NP-046 WT:A
 H9HCNNNCPMMLXR-NEE