diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78d1f32..9a74851 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ features apply to your model and firmware version, see the
 
 ## unreleased
 
+- rpl-hx: Added support for 5600 MHz RAM
+
+## 2023-09-08
+
 - adl: Updated CSME to 16.1.25.2124
 - adl,rpl: Fixed SMMSTORE init sometimes failing
 - Increased key debounce from 5ms to 10ms
diff --git a/coreboot b/coreboot
index 1cb1310..e86eb25 160000
--- a/coreboot
+++ b/coreboot
@@ -1 +1 @@
-Subproject commit 1cb13106c972666a88dfe95620d55c856ce14db4
+Subproject commit e86eb250cf26ac326da736fae1208f816727e47d