diff --git a/openpower/patches/vesnin-patches/hostboot/hostboot-0002-Fix-POS-and-SPD-VPD_REC_NUM.patch b/openpower/patches/vesnin-patches/hostboot/hostboot-0002-Fix-POS-and-SPD-VPD_REC_NUM.patch
index aa851e4..cb8a796 100644
--- a/openpower/patches/vesnin-patches/hostboot/hostboot-0002-Fix-POS-and-SPD-VPD_REC_NUM.patch
+++ b/openpower/patches/vesnin-patches/hostboot/hostboot-0002-Fix-POS-and-SPD-VPD_REC_NUM.patch
@@ -3,6 +3,12 @@
 Date: Tue, 13 Mar 2018 15:03:41 +0300
 Subject: [PATCH] Fix POS and SPD-VPD_REC_NUM
 
+Hank Chang: When bringup this 4Socket 128DIMMs system, we hit the following
+VPD/SPD issue and suspected it might be related to the VPD_REC_NUM numbering
+algorithm issue then caused the SPD cache overlap for the 4 sockets case.
+So we simply tried to jump the $aff_pos offset from 16 to 64 for each Proc and
+the issue was fixed/gone.
+
 Originally created by MSI (S188)
 
 Signed-off-by: Artem Senichev <a.senichev@yadro.com>
diff --git a/openpower/patches/vesnin-patches/hostboot/hostboot-0005-Fill-empty-sensor-id-to-reserved-id-0xFF.patch b/openpower/patches/vesnin-patches/hostboot/hostboot-0005-Fill-empty-sensor-id-to-reserved-id-0xFF.patch
index 2cf8cdb..9fec1aa 100644
--- a/openpower/patches/vesnin-patches/hostboot/hostboot-0005-Fill-empty-sensor-id-to-reserved-id-0xFF.patch
+++ b/openpower/patches/vesnin-patches/hostboot/hostboot-0005-Fill-empty-sensor-id-to-reserved-id-0xFF.patch
@@ -3,6 +3,19 @@
 Date: Tue, 13 Mar 2018 15:44:05 +0300
 Subject: [PATCH] Fill empty sensor id to reserved id 0xFF
 
+
+Hank Chang: This patch achieves the following goals:
+a. Auto set all empty sensors with reserved ID - 0xFF instead of being 0x0 in
+   the mrw process (would cause some duplicate sensor@0 in skiboot)
+b. In this way, they could simply save 128 empty DIMM_Temp* IDs to become
+   all 0xFF, and OCC would still report all the non-zero ID's DIMM_Temp*
+   reading in the poll response.
+   And then, apply another "occ-0001-Add-DIMM-temperature-sensors.patch"
+   can customize/override these 0xFF temp_sid again based on the different
+   CPU/Cen/DIMM index which can be decoded by OpenBMC accordingly.
+c. Just simply prints the "N/A" (0xFF) string in the *.rpt file for reviewing
+   all the undefined/reserved sensor targets.
+
 Originally created by MSI (S188)
 
 Signed-off-by: Artem Senichev <a.senichev@yadro.com>
diff --git a/openpower/patches/vesnin-patches/occ/occ-0001-Add-DIMM-temperature-sensors.patch b/openpower/patches/vesnin-patches/occ/occ-0001-Add-DIMM-temperature-sensors.patch
index b633646..51f273f 100644
--- a/openpower/patches/vesnin-patches/occ/occ-0001-Add-DIMM-temperature-sensors.patch
+++ b/openpower/patches/vesnin-patches/occ/occ-0001-Add-DIMM-temperature-sensors.patch
@@ -3,6 +3,10 @@
 Date: Tue, 13 Mar 2018 14:17:00 +0300
 Subject: [PATCH] Add DIMM temperature sensors
 
+Customize/override 0xFF temp_sid based on the different CPU/Cen/DIMM index
+which can be decoded by OpenBMC accordingly.
+See also: hostboot-0005-Fill-empty-sensor-id-to-reserved-id-0xFF.patch.
+
 Originally created by MSI (S188)
 
 Signed-off-by: Artem Senichev <a.senichev@yadro.com>