After configure my pxe role, no possible to make a boot in PXE; after research, i have found that option 60 was not available on my DHCP
Solution found at
http://blogs.technet.com/b/system_center_configuration_manager_operating_system_deployment_support_blog/archive/2011/10/14/troubleshooting-the-pxe-service-point-and-wds-in-configuration-manager-2007.aspx
Configuring DHCP for Remote Boot Services
http://msdn.microsoft.com/en-us/library/dd128762(WinEmbedded.51).aspx
To summarize and shorten the netsh commands described in the above article, close any DHCP consoles that are open and then run following two commands from an elevated command prompt:
netsh dhcp server \\<DHCP_server_machine_name> add optiondef 60 PXEClient String 0 comment=PXE support
netsh dhcp server \\<DHCP_server_machine_name> set optionvalue 60 STRING PXEClient
where <DHCP_server_machine_name> is the name of the DHCP/WDS server (without the brackets <>).
The above two commands set up and enable DHCP Option 60 on a DHCP server. Normally DHCP Option 60 is not set up by default on a DHCP server. The first command sets up DHCP Option 60 but does not actually enable it. The second command actually enables DHCP Option 60.
If after running the above two commands an option named "Unknown" is displayed in the DHCP console instead of "060 PXE Client", reboot the server. After the reboot the option should display correctly. This usually happens if a DHCP console was open when the above two commands were run