Start-Transcript -path C:\Scripts\Log\wolreboot.txt
$SiteCode = 'SCCM Site Code goes here' 
$CollectionName = 'Target collection name goes here' 
#Retrieve SCCM collection by name 
$Collection = GWMI -ComputerName $siteServer -NameSpace "ROOT\SMS\site_$SiteCode" -Class SMS_Collection | where {$_.Name -eq "$CollectionName"} 
#Retrieve members of collection 
$SMSMembers = GWMI -ComputerName $SiteServer -Namespace "ROOT\SMS\site_$SiteCode" -Query "SELECT * FROM SMS_FullCollectionMembership WHERE CollectionID='$($Collection.CollectionID)' order by name" | select Name

ForEach ($SMSMember in $SMSMembers){
If (test-connection $SMSMember.Name -Count 1 -quiet) 
{
write-host $SMSMember.Name "Online"
$name = $smsmember.name 
Start-Process Shutdown "-r -t 300 -m \\$name -c `"Initiating scheduled maintenance reboot. You have 5mins to save your before your PC will reboot`"" -NoNewWindow -Wait
}
Else
{
$a = (GWMI -ComputerName $siteServer -Class SMS_R_SYSTEM -Namespace root\sms\site_$SiteCode | where {$_.Name -eq $SMSMember.Name}).MACAddresses
$a = $a -replace ':',''
foreach ($mac in $a){
C:\Scripts\\wol.exe $mac
write-host $SMSMember.name "WOL packet sent" $mac
write-host `r`n}
}
}
Stop-Transcript

Exit