Easy process for booking hardware compalint to HP:

01. open website www.itrc.hp.com

02. For first time u have create one user name and password by clicking register button on left side.

03. login with ur user name and password

04. In the options select support case manager.

05. Enter Product no (ex: NA*****) and sl no of CPU (EX: INA*******)

06. Click on next

07. If ur cpu exist in warranty it wil ask ur contact address and problem description.

08. Enter the details of the hard ware which have problem ( for example if keyboard not working enter the model of the keyboard i.e ps/2 or usb)

09. After completion click on submit to generate the case id.

with the above case id u can know the status of ur complaint.