Windows 8 Hybrid Boot and flash, TPM auto-provisioning

Technical white paper UEFI Secure Boot on HP business notebooks, desktops, and workstations

法规及政策，并已获得所需的一切事先批准及许可（如适用）。若因您未获得相应的操作/使用许可而发生的

合规问题，皆由您自行承担全部责任，与惠普无涉。

确认启用TPM, 按 “+”。取消，按 “-“.

NoPPIProvision Flag in F10

The default for the NoPPIProvision flag is based on the factory setting.

TPM auto-provisioning

Windows 8 will automatically take TPM ownership to ease the deployment scenario. On an out of box setup, the OS will automatically prepare the TPM for use. It does this by making use of the new PPI flag dUEFIned in the “PPI v1.2 PC client Specific TPM interface” spec. The default scenario for first OS start is ”TPM is not ready for use” and the NoPPIProvision flag is set to True (the user will not be prompted for TPM provisioning). At this point TPM’s state is “Disabled”, “Deactivated,” and “Not Owned.” The OS will then issue the TPM command 10 and after the first boot cycle the TPM will be “Enabled and Activated.” Finally, after the second OS start, the TPM will be “Owned” and Windows will report that the TPM is ready for use. If users choose not to employ this TPM auto-provisioning option, they can use the Windows Wizard to manually provision the TPM.

POST

POST includes these tools and information:

•Drivers and firmware versions of installed software

•Information about disk drives directly attached to the chipset (not to a Smart Array Controller)

POST initializes the display in its native resolution. The logo requirements are as follows:

•Logo design:

–Centered horizontally

–38.2% from top of screen

•Logo size:

–< 40% of screen height

–< 40% of screen width

POST time (for notebooks)

In order to minimize POST time, USB Initialization is bypassed on the default boot path. Fast boot initializes the internal HDD only to achieve the required boot time.

POST time (for desktops and workstations)

USB initialization is not bypassed on desktops and workstations since these systems frequently have USB keyboards and USB pointing devices.

Windows 8 Hybrid Boot and flash

By default, Hybrid Boot is enabled for Windows 8 shutdown. It is the hibernation without user data. Thus at the next boot, the OS does a resume from S4 instead of the cold boot. However, when BIOS changes certain system configurations, either via flash or some setting change during POST, a full restart is required for the OS to pick up the changes. In such cases, the BIOS must inform the OS to do a full boot using the ACPI specification.

The Firmware ACPI Control Structure (FACS) table (from the ACPI specification),contains a four-byte field at offset 8 called “Hardware Signature” with the following description:

The value of the system’s “hardware signature” at last boot is calculated by the BIOS on a best effort basis to indicate the base hardware configuration of the system such that different base hardware configurations can have different hardware signature values. OS-directed Power Management (OSPM) uses this information in waking from an S4 state, by comparing the current hardware signature to the signature values saved in the nonvolatile sleep image. If the values are not the same, OSPM assumes that the saved non-volatile image is from a different hardware configuration and cannot be restored.”

8300 specifications

The HP 8300 is a versatile and efficient desktop computer designed for business environments and power users. As part of the HP Elite series, the 8300 is tailored to deliver robust performance, security, and manageability.

One of the key features of the HP 8300 is its selection of Intel processors. Users can opt for third-generation Intel Core i3, i5, or i7 CPUs, providing a range of performance levels suitable for various workloads, from basic office tasks to more intensive applications. This adaptability makes the 8300 a suitable choice for organizations needing reliable computing power.

The system supports up to 32GB of DDR3 RAM, allowing for smooth multitasking and improved efficiency in handling resource-heavy applications. The flexibility in memory options ensures that businesses can configure the machine to meet their specific needs.

For storage, the HP 8300 offers various choices including traditional Hard Disk Drives (HDD) and Solid State Drives (SSD), significantly enhancing data access speeds and system responsiveness. With multiple configuration options, users can select from up to 1TB of storage capacity, providing ample room for files and applications.

Connectivity is also a strong point for the HP 8300. The desktop is equipped with multiple USB 3.0 ports, facilitating quick file transfers and easy peripheral connectivity. Additional ports, including USB 2.0, VGA, DP, and serial ports, ensure compatibility with a wide array of devices and legacy equipment.

Security technologies are integrated within the HP 8300 framework, including features like BIOS protection, HP Client Security, and optional fingerprint readers. These security measures help safeguard sensitive data and provide an additional layer of protection against unauthorized access.

The HP 8300 also supports various operating systems, including Windows 10 Pro, ensuring organizations can deploy the desktop within their existing IT ecosystem. Furthermore, the machine’s compatibility with HP tools for remote management enhances administrators' ability to oversee multiple devices efficiently.

In summary, the HP 8300 embodies a blend of powerful hardware, extensive configuration options, robust security features, and effective management capabilities, making it a compelling desktop solution for businesses aiming for productivity and reliability. With its comprehensive feature set, it stands out as an exceptional choice for both individual and organizational computing needs.