diff --git a/src/mainboard/google/rex/variants/karis/memory/Makefile.mk b/src/mainboard/google/rex/variants/karis/memory/Makefile.mk
index 45f30a7e89..eba4ccde8d 100644
--- a/src/mainboard/google/rex/variants/karis/memory/Makefile.mk
+++ b/src/mainboard/google/rex/variants/karis/memory/Makefile.mk
@@ -4,7 +4,7 @@
 # util/spd_tools/bin/part_id_gen MTL lp5 src/mainboard/google/rex/variants/karis/memory src/mainboard/google/rex/variants/karis/memory/mem_parts_used.txt
 
 SPD_SOURCES =
-SPD_SOURCES += spd/lp5/set-0/spd-11.hex      # ID = 0(0b0000)  Parts = MT62F1G32D2DS-023 WT:B, H58G56BK8BX068, K3KL8L80EM-MGCU
+SPD_SOURCES += spd/lp5/set-0/spd-11.hex      # ID = 0(0b0000)  Parts = MT62F1G32D2DS-023 WT:B, H58G56BK8BX068, K3KL8L80EM-MGCU, H58G56CK8BX146
 SPD_SOURCES += spd/lp5/set-0/spd-1.hex      # ID = 1(0b0001)  Parts = H9JCNNNBK3MLYR-N6E, MT62F512M32D2DR-031 WT:B
 SPD_SOURCES += spd/lp5/set-0/spd-7.hex      # ID = 2(0b0010)  Parts = K3KL8L80CM-MGCT
 SPD_SOURCES += spd/lp5/set-0/spd-10.hex      # ID = 3(0b0011)  Parts = H58G66CK8BX147
diff --git a/src/mainboard/google/rex/variants/karis/memory/dram_id.generated.txt b/src/mainboard/google/rex/variants/karis/memory/dram_id.generated.txt
index d7b77d7c83..d5845751b2 100644
--- a/src/mainboard/google/rex/variants/karis/memory/dram_id.generated.txt
+++ b/src/mainboard/google/rex/variants/karis/memory/dram_id.generated.txt
@@ -11,3 +11,4 @@ K3KL8L80CM-MGCT                2 (0010)
 MT62F512M32D2DR-031 WT:B       1 (0001)
 H58G66CK8BX147                 3 (0011)
 K3KL8L80EM-MGCU                0 (0000)
+H58G56CK8BX146                 0 (0000)
diff --git a/src/mainboard/google/rex/variants/karis/memory/mem_parts_used.txt b/src/mainboard/google/rex/variants/karis/memory/mem_parts_used.txt
index e839b0975c..8762cdb999 100644
--- a/src/mainboard/google/rex/variants/karis/memory/mem_parts_used.txt
+++ b/src/mainboard/google/rex/variants/karis/memory/mem_parts_used.txt
@@ -16,3 +16,4 @@ K3KL8L80CM-MGCT
 MT62F512M32D2DR-031 WT:B
 H58G66CK8BX147
 K3KL8L80EM-MGCU
+H58G56CK8BX146