diff --git a/src/pvecontrol/sanitycheck.py b/src/pvecontrol/sanitycheck.py
index 9bd4adc..da76a78 100644
--- a/src/pvecontrol/sanitycheck.py
+++ b/src/pvecontrol/sanitycheck.py
@@ -62,12 +62,14 @@ def display(self, padding_max_size):
 class SanityCheck():
 
     check_methods = (
+      "_validate_nodes_capacity",
       "_validate_ha_groups",
       "_validate_ha_vms",
     )
 
     check_display_order = [
       CheckType.HA,
+      CheckType.Node,
     ]
 
     def __init__(self, proxmox: PVECluster):
@@ -97,6 +99,32 @@ def display(self):
           print(f"{dash_size*'-'} {check.type.value} {dash_size*'-'}\n")
         check.display(size)
 
+    def _check_cpu_overcommit(self, maxcpu, cpufactor, allocated_cpu):
+      return (maxcpu *  cpufactor) <= allocated_cpu
+
+    def _check_mem_overcommit(self, max_mem, min_mem, allocated_mem):
+      return (allocated_mem +  min_mem) >= max_mem
+
+    # Check nodes capacity
+    def _validate_nodes_capacity(self):
+      node_config = self._proxmox.config['node']
+      check = Check(CheckType.Node, "Check Node capacity")
+      for node in self._proxmox.nodes:
+        if self._check_cpu_overcommit(node.maxcpu, node_config['cpufactor'], node.allocatedcpu):
+          msg = "Node %s is in cpu overcommit status: %s allocated but %s available"%(node.node, node.allocatedcpu, node.maxcpu)
+          check.add_messages(CheckMessage(CheckCode.CRIT, msg))
+        else:
+          msg = f"Node '{node.node}' isn't in cpu overcommit"
+          check.add_messages(CheckMessage(CheckCode.OK, msg))
+
+        if self._check_mem_overcommit(node.allocatedmem, node_config['memoryminimum'], node.maxmem):
+          msg = f"Node '{node.node}' is in mem overcommit status: {node.allocatedmem} allocated but {node.maxmem} available"
+          check.add_messages(CheckMessage(CheckCode.CRIT, msg))
+        else:
+          msg = f"Node '{node.node}' isn't in cpu overcommit"
+          check.add_messages(CheckMessage(CheckCode.OK, msg))
+      return check
+
     # Check HA groups
     def _validate_ha_groups(self):
       check = Check(CheckType.HA, "Check HA groups")