diff --git a/src/engine/sysDef.cpp b/src/engine/sysDef.cpp
index e33b17b1c..85958dca9 100644
--- a/src/engine/sysDef.cpp
+++ b/src/engine/sysDef.cpp
@@ -691,7 +691,8 @@ void DivEngine::registerSystems() {
 
   sysDefs[DIV_SYSTEM_SMS]=new DivSysDef(
     "TI SN76489", NULL, 0x03, 0x03, 4, false, true, 0x150, false, 0, 0, 0,
-    "a square/noise sound chip found on the Sega Master System, ColecoVision, Tandy, TI's own 99/4A and a few other places.",
+    "a square/noise sound chip found on the Sega Master System, ColecoVision, Tandy, TI's own 99/4A and a few other places."
+    "\n\n3 x Square, 1 x Noise",
     {"Square 1", "Square 2", "Square 3", "Noise"},
     {"S1", "S2", "S3", "NO"},
     {DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_PULSE, DIV_CH_NOISE},
diff --git a/src/gui/sysManager.cpp b/src/gui/sysManager.cpp
index 68b3cbda9..618ff1a16 100644
--- a/src/gui/sysManager.cpp
+++ b/src/gui/sysManager.cpp
@@ -82,10 +82,23 @@ void FurnaceGUI::drawSysManager() {
           ImGui::EndDragDropTarget();
         }
         ImGui::TableNextColumn();
+        bool isNotCollapsed=true; // IM SORRY
         if (ImGui::TreeNode(fmt::sprintf("%d. %s##_SYSM%d",i+1,getSystemName(e->song.system[i]),i).c_str())) {
           drawSysConf(i,i,e->song.system[i],e->song.systemFlags[i],true);
+          isNotCollapsed=false;
           ImGui::TreePop();
         }
+        if (ImGui::IsItemHovered(ImGuiHoveredFlags_Stationary) && isNotCollapsed) {
+          if (e->song.system[i]!=DIV_SYSTEM_NULL) {
+            const DivSysDef* sysDef=e->getSystemDef(e->song.system[i]);
+            if (ImGui::BeginTooltip()) { // why not SetTooltip()? so i can wrap the text
+              ImGui::PushTextWrapPos(ImGui::GetCursorPos().x+420); // arbitrary constant
+              ImGui::TextWrapped("%s",sysDef->description);
+              ImGui::PopTextWrapPos();
+              ImGui::EndTooltip();
+            }
+          }
+        }
         ImGui::TableNextColumn();
         if (ImGui::Button("Clone##SysDup")) {
           if (!e->duplicateSystem(i,sysDupCloneChannels,sysDupEnd)) {