Unable to set Powerprofile with Powershell

Hi
Downloaded and installed the HPBIOSCmdlets.

Can successfully use the Get- commands and talk to bios. But if i try to Set a for example new power profile it shows an error:

Get-HPBIOSPowerProfile -Connection $connection 

IP       	Hostname      	 StatusType	HPPowerProfile                                
192.168.xx.xx  servname.fqdn.com  OK 		Balanced                                      

Set-HPBIOSPowerProfile -Connection $connection -Profile Maximum_Performance -OutputType RawText 
The target server does not support Profile. Check more details about how to use this Cmdlet from help.

Any idea what could be wrong ?