Service & support options: Enhanced Care - Minimum recommended service support offer designed to ensure customers have access to expert assistance, whenever they need it: 4-Hour On-site Service, 7-Day x 24-Hour Coverage, 3 Years; 6-Hour Call to Repair, On-site Service, 7-Day x 24-Hour Coverage, 3 Years; Support Plus 24 - Onsite HW support 24x7, 4hr response and Microsoft O/S SW Tech support offsite, onsite at HP's discretion, 24x7 2hr response time incl. HP holidays; Installation & Start-Up of a ProLiant server and Microsoft or Linux O/S per the Customer Description and/or Data Sheet. To be delivered on a scheduled basis 8am-5pm, M-F, excl. HP holidays3 year parts, 3 year labor, 3-year on-site support