diff --git a/README.md b/README.md
index 404ca85..179ed8e 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# teamredminer v0.8.2
+# teamredminer v0.8.2.1
 This is an optimized miner for AMD GPUs created by todxx and kerney666.
 
 **Download is available in the [github releases section](https://github.com/todxx/teamredminer/releases).**
@@ -107,7 +107,14 @@ For example command lines please see the batch/shell scripts in the miner downlo
 For command line options see the [USAGE.txt](USAGE.txt) file that comes with the miner.
 
 -----------
-Changes in v0.8.1.2
+Changes in v0.8.2.1
+
+Release notes:
+- Bugfix: fixed windows issue with intermittently reading zero gpu stats and blasting fans (bug in 0.8.2).
+- Verthash: added --verthash_max_uploads=N to control the upload of the verthash table to gpus at startup. Some chipsets get issues running > 4 gpus concurrently. Typical error is that multiple gpus die immediately at startup when running the full rig, but work fine if you only run 3-4 gpus.
+- Verthash: fixed support for 550 2GB gpus. 
+
+Changes in v0.8.2
 
 Release notes:
 - General: added Verthash algo for Vertcoin.
diff --git a/USAGE.txt b/USAGE.txt
index 41e04c5..ed8ce0a 100644
--- a/USAGE.txt
+++ b/USAGE.txt
@@ -1,4 +1,4 @@
-          Team Red Miner version 0.8.2
+          Team Red Miner version 0.8.2.1
 Usage: teamredminer [OPTIONS]
 Options:
   -a, --algo=ALGORITHM      Selects the mining algorithm.  Currently available:
@@ -431,3 +431,6 @@ Verthash options:
                               data from the file.  If the file does not exist, the miner will generate the verthash
                               data and then save it in the file for future use.  If this option is not specified the
                               miner will generate the verthash data in system memory on every start.
+      --verthash_max_uploads=N  Some motherboards have issues with all gpus in the rig uploading the verthash table
+                              at the same time.  This argument limits the number of concurrent gpus that are uploading
+                              the table at the same time at startup.  Allowed values are 1-32.  The default value is 4. 
diff --git a/doc/VERTHASH_TUNING.txt b/doc/VERTHASH_TUNING.txt
index cf3f8ef..97ab37a 100644
--- a/doc/VERTHASH_TUNING.txt
+++ b/doc/VERTHASH_TUNING.txt
@@ -74,7 +74,7 @@ below, it might just have a lower effective core clk.
 Type           GPU CUs CoreMHz MemMHz TEdge TMem  VDDC   Power
 RX Vega 64 LC  0   64  1550    1107   36C   57C   900 mV 123 W
 RX Vega 56 ref 1   56  1550    980    60C   74C   900 mV 130 W
-Vega 56 Hynix  2   56  1500    1107   935   61C   900 mV 178 W
+Vega 56 Hynix  2   56  1500    935    61C   72C   900 mV 178 W
 ------------------------ GPU Status ---------------------------
 GPU 0 [35C, fan 57%]       verthash: 1.163Mh/s, avg 1.064Mh/s
 GPU 1 [60C, fan 60%]       verthash: 1.206Mh/s, avg 1.103Mh/s