CBI/CGI Technical Reference

PORT 80 CODES The following codes are presented on Port 80H as the BIOS performs its reset procedure.

Code

Description

 

Uncompressed Initialization Code Checkpoints:

D0

NMI is disabled. Power-on delay starting. Initialization code checksum to be verified

 

next.

D1

Initializing DMA controller, performing keyboard controller BAT test, starting memory

 

refresh and entering 4GB flat mode next.

D3

Starting memory sizing next.

D4

Returning to real mode. Executing any OEM patches and setting stack next.

D5

Passing control to uncompressed code in shadow RAM at E000:0000H. Initialization

 

code copied to segment 0 and control to be transferred to segment 0.

D6

Control in segment 0. Checking if <Ctrl>+<Home> was pressed and verifying system

 

BIOS checksum. If <Ctrl>+<Home> was pressed or system BIOS checksum is bad,

 

going to checkpoint code E0H next. Otherwise, going to checkpoint code D7H.

D7

Main BIOS runtime code to be decompressed and control to be passed to main BIOS

 

in shadow RAM.

Boot Block Recovery Code Checkpoints:

E0

Onboard floppy controller initialized, if any. Beginning base 512KB memory test next.

E1

Initializing interrupt vector table next.

E2

Initializing DMA and interrupt controllers next.

E6

Enabling floppy drive controller and timer IRQs. Enabling internal cache memory.

ED

Initializing floppy drive.

EE

Looking for floppy diskette in drive A:. Reading first sector of diskette.

EF

Read error occurred while reading floppy drive in drive A:.

F0

Searching for AMIBOOT.ROM file in root directory.

F1

AMIBOOT.ROM file not in root directory.

F2

Reading and analyzing floppy diskette FAT to find clusters occupied by

 

AMIBOOT.ROM file.

F3

Reading AMIBOOT.ROM file next, cluster by cluster.

F4

AMIBOOT.ROM file not correct size.

F5

Disabling internal cache memory next.

FB

Detecting type of flash ROM next.

 

 

A-6

Chassis Plans

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Intel S5721-xxx manual Uncompressed Initialization Code Checkpoints
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S5721-xxx specifications

The Intel S5721-xxx is a high-performance processor designed for a variety of applications, particularly in data center environments and enterprise-level solutions. This processor is part of Intel's line of server-grade CPUs, which are engineered to deliver exceptional performance, efficiency, and scalability.

One of the standout features of the Intel S5721-xxx is its multi-core architecture, which allows for enhanced parallel processing capabilities. This is crucial for workloads that require simultaneous processing of multiple tasks, such as virtualization, cloud computing, and large-scale data analytics. With up to 20 physical cores and support for Intel Hyper-Threading technology, the S5721-xxx can handle up to 40 threads, significantly improving throughput and performance for demanding applications.

In terms of performance, the S5721-xxx offers impressive clock speeds that can reach up to 3.2 GHz, providing the necessary power for demanding tasks. Additionally, the processor supports Intel Turbo Boost Technology, which automatically increases the processor's frequency to provide extra performance when needed. This dynamic scaling ensures efficient resource utilization, making the processor an ideal choice for environments where workload requirements can fluctuate.

Another notable characteristic of the S5721-xxx is its advanced memory support. The processor is compatible with DDR4 memory, allowing for high bandwidth and low latency, which is essential for applications that require quick access to large datasets. Additionally, the S5721-xxx supports Intel Optane technology, which enhances memory performance and offers lower latency, providing a considerable advantage in data-intensive operations.

Intel's S5721-xxx also features enhanced security technologies. With Intel Software Guard Extensions (SGX), this processor provides hardware-based protection for applications and data, which is critical for enterprise applications dealing with sensitive information. Furthermore, it includes Intel Virtualization Technology, facilitating improved resource management and security in virtual environments.

Thermal management is also a focus for the S5721-xxx. It incorporates Intel's thermal velocity boost technology, which optimizes thermal performance and ensures that the processor can maintain high speeds without overheating under heavy loads.

In summary, the Intel S5721-xxx is characterized by its robust multi-core architecture, high clock speeds, advanced memory support, and security features. Its design caters specifically to the needs of modern data-driven enterprises and offers the scalability necessary to support emerging technologies and workloads. With its combination of performance, efficiency, and security, the Intel S5721-xxx is a formidable choice for organizations looking to enhance their computing capabilities.
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