List all VMs with a memory limit set in vCenter using Powershell

This script lists all VMs with a memory limit set in Resource Manger in a given VMWare cluster.

Connect-VIServer myserver.fqdn.com 
Get-Cluster $Cluster | Get-VM | Get-VMResourceConfiguration | where {$_.MemLimitMB -ne "-1"}

If you want to clear all memory limits and set them to unlimited use the following code

Connect-VIServer myserver.fqdn.com 
Get-Cluster MyCluster | Get-VM | Get-VMResourceConfiguration | where {$_.MemLimitMB -ne "-1"} | Set-VMResourceConfiguration -MemLimitMB $null

The same can also be done for the CPU management using CpuLimitMhz attribute.