IBM ServicePacproducts offer a range of hardware maintenance or maintenance upgrade coverage. ServicePac products can be ordered when you purchase the related IBM hardware.Warranty Service UpgradeWarranty Service Upgrade enhances the level of service from the Base Warranty Service associated with the machine type/model.This ServicePac® Upgrades the standard warranty with Extended hours of coverage and a Higher level of response time.The Warranty Service Upgrade period starts at the same time as the Base Warranty Service.