American Megatrends
Encyclopedia
American Megatrends Incorporated (AMI) is an American hardware
Computer hardware
Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system which supports application software that...

 and software company that specializes in PC
IBM PC compatible
IBM PC compatible computers are those generally similar to the original IBM PC, XT, and AT. Such computers used to be referred to as PC clones, or IBM clones since they almost exactly duplicated all the significant features of the PC architecture, facilitated by various manufacturers' ability to...

 hardware and firmware
Firmware
In electronic systems and computing, firmware is a term often used to denote the fixed, usually rather small, programs and/or data structures that internally control various electronic devices...

. The company was founded in 1985 by Pat Sarma and S. Shankar, who was chairman and president . It is headquartered in Building 200 at 5555 Oakbrook Parkway in Gwinnett County
Gwinnett County, Georgia
, Gwinnett County had a population of 805,321. The racial and ethnic composition of the population was 53.3% white , 23.6% black , 2.7% Korean, 2.6% Asian Indian, 2.0% Vietnamese, 3.3% other Asian, 0.1% Pacific Islander, 8.8% some other race and 3.1% from two or more races...

, Georgia
Georgia (U.S. state)
Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

, United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

, near the city of Norcross
Norcross, Georgia
As of 2010 Norcross had a population of 9,116. The racial and ethnic composition of the population was 40.8% white , 19.8% black or African American , 0.7% Native American, 2.1% Asian Indian, 10.7% Asian, 0.1% Pacific Islander, 21.5% from some other race and 4.3% reporting two or more races...

.

The company started as a manufacturer of complete motherboard
Motherboard
In personal computers, a motherboard is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple...

s, positioning itself in the high-end segment. Its first customer was PCs Ltd, later known as Dell
Dell
Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...

 Computers.

As hardware business moved progressively to Taiwan
Taiwan
Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

-based original design manufacturer
Original Design Manufacturer
An original design manufacturer is a company which designs and manufactures a product which is specified and eventually branded by another firm for sale. Such companies allow the brand firm to produce without having to engage in the organization or running of a factory...

s, AMI continued to be a BIOS firmware developer for major motherboard manufacturers. The company produced BIOS software for motherboards, server motherboards (1992), storage controllers (1995) and remote management cards (1998).

In 1996 AMI produced MegaRAID, a storage controller card which was adopted by major OEMs
Original Equipment Manufacturer
An original equipment manufacturer, or OEM, manufactures products or components that are purchased by a company and retailed under that purchasing company's brand name. OEM refers to the company that originally manufactured the product. When referring to automotive parts, OEM designates a...

 including HP and Dell. The RAID division assets were sold to LSI Logic in 2001.

AMI continued to focus on OEM business and technology. Its product line includes AMIBIOS (a BIOS
BIOS
In IBM PC compatible computers, the basic input/output system , also known as the System BIOS or ROM BIOS , is a de facto standard defining a firmware interface....

), Aptio (a successor to AMIBIOS8 based on the UEFI
UEFI
The Unified EFI Forum or UEFI Forum is an alliance between several leading technology companies to modernize the booting process...

 standard), diagnostic software, remote access firmware, motherboards, SGPIO
SGPIO
SGPIO is an acronym for Serial General Purpose Input/Output which is a 4-signal bus used between a host bus adapter and a backplane; of the 4 signals, 3 are driven by the HBA and 1 by the backplane...

 backplane controllers, driver/firmware development, service processors, and NAS and IP-SAN storage systems for SMBs.
Worldwide offices:
  • United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...

    • Headquarters: Gwinnett County
      Gwinnett County, Georgia
      , Gwinnett County had a population of 805,321. The racial and ethnic composition of the population was 53.3% white , 23.6% black , 2.7% Korean, 2.6% Asian Indian, 2.0% Vietnamese, 3.3% other Asian, 0.1% Pacific Islander, 8.8% some other race and 3.1% from two or more races...

      , Georgia
      Georgia (U.S. state)
      Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

    • Field office: Fremont
      Fremont, California
      Fremont is a city in Alameda County, California. It was incorporated on January 23, 1956, from the merger of five smaller communities: Centerville, Niles, Irvington, Mission San Jose, and Warm Springs...

      , California
      California
      California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

  • Kunshan
    Kunshan
    Kunshan is a satellite city in the greater Suzhou region. Administratively, it is a county-level city within the prefecture-level city of Suzhou. It is located in southeastearn part of Jiangsu Province, China, adjacent to Jiangsu's border with the Shanghai Municipality.The total area of ​​Kunshan...

    , Jiangsu
    Jiangsu
    ' is a province of the People's Republic of China, located along the east coast of the country. The name comes from jiang, short for the city of Jiangning , and su, for the city of Suzhou. The abbreviation for this province is "苏" , the second character of its name...

    , People's Republic of China
    People's Republic of China
    China , officially the People's Republic of China , is the most populous country in the world, with over 1.3 billion citizens. Located in East Asia, the country covers approximately 9.6 million square kilometres...

  • Taipei
    Taipei
    Taipei City is the capital of the Republic of China and the central city of the largest metropolitan area of Taiwan. Situated at the northern tip of the island, Taipei is located on the Tamsui River, and is about 25 km southwest of Keelung, its port on the Pacific Ocean...

    , Taiwan
    Taiwan
    Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

    , Republic of China
    Republic of China
    The Republic of China , commonly known as Taiwan , is a unitary sovereign state located in East Asia. Originally based in mainland China, the Republic of China currently governs the island of Taiwan , which forms over 99% of its current territory, as well as Penghu, Kinmen, Matsu and other minor...

  • Munich
    Munich
    Munich The city's motto is "" . Before 2006, it was "Weltstadt mit Herz" . Its native name, , is derived from the Old High German Munichen, meaning "by the monks' place". The city's name derives from the monks of the Benedictine order who founded the city; hence the monk depicted on the city's coat...

    , Germany
    Germany
    Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

  • Chennai
    Chennai
    Chennai , formerly known as Madras or Madarasapatinam , is the capital city of the Indian state of Tamil Nadu, located on the Coromandel Coast off the Bay of Bengal. Chennai is the fourth most populous metropolitan area and the sixth most populous city in India...

    , Tamil Nadu
    Tamil Nadu
    Tamil Nadu is one of the 28 states of India. Its capital and largest city is Chennai. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh...

    , India
    India
    India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

  • Chiyoda
    Chiyoda, Tokyo
    is one of the 23 special wards in central Tokyo, Japan. In English, it is called Chiyoda ward. As of October 2007, the ward has an estimated population of 45,543 and a population density of 3,912 people per km², making it by far the least populated of the special wards...

    , Tokyo
    Tokyo
    , ; officially , is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family...

    , Japan
    Japan
    Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

  • Seoul
    Seoul
    Seoul , officially the Seoul Special City, is the capital and largest metropolis of South Korea. A megacity with a population of over 10 million, it is the largest city proper in the OECD developed world...

    , South Korea
    South Korea
    The Republic of Korea , , is a sovereign state in East Asia, located on the southern portion of the Korean Peninsula. It is neighbored by the People's Republic of China to the west, Japan to the east, North Korea to the north, and the East China Sea and Republic of China to the south...

  • Formerly had an office in Dupont
    DuPont, Washington
    DuPont is a city in Pierce County, Washington, United States. The population was 8,199 at the 2010 census.-History:The Nisqually tribe arrived in the area at least 5700 years ago, subsisting on shellfish from the beaches and salmon from Sequalitchew Creek...

    , Washington, United States
    United States
    The United States of America is a federal constitutional republic comprising fifty states and a federal district...


AMIBIOS

Table of diagnostic beep codes compiled by AMI BIOS during power-on self test
Number of beeps Meaning
1 power-on self test successful
2 Parity error in the first 64KiB
Kibibyte
The kibibyte is a multiple of the unit byte for quantities of digital information. The binary prefix kibi means 1024; therefore, 1 kibibyte is . The unit symbol for the kibibyte is KiB. The unit was established by the International Electrotechnical Commission in 1999 and has been accepted for use...

 of RAM
3 Memory failure in the first 64KiB of RAM
4 Same as 3, but also including a non-functional timer 1
5 CPU error
6 Error in the A20 line
A20 line
The A20 or addressing line 20 is one of the plethora of electrical lines that make up the system bus of an x86-based computer system. The A20 line in particular is used to transmit the 21st bit on the address bus....

 on the 8042 keyboard controller chip
7 Generation of a CPU virtual mode exception signifying an error
8 Read/write error when accessing system video RAM
9 Mismatch between the calculated checksum of the ROM firmware and the expected value hardcoded into the firmware.
10 Read/write error for the CMOS NVRAM shutdown register
11 A fault in the L2 cache

AMIBIOS (also AMI BIOS) is the BIOS
BIOS
In IBM PC compatible computers, the basic input/output system , also known as the System BIOS or ROM BIOS , is a de facto standard defining a firmware interface....

 developed and sold by American Megatrends. It is used on motherboard
Motherboard
In personal computers, a motherboard is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple...

s made by AMI and by other companies.

American Megatrends has a strict OEM business model for AMIBIOS: it sells source code to motherboard manufacturers or customizes AMIBIOS for each OEM individually, whichever business model they require. AMI does not sell to end users, and itself produces no end-user documentation or technical support for its BIOS firmware, leaving that to licensees. However, the company published two books on its BIOS in 1993 and 1994, (listed in further reading), written by its engineers.

During powerup, the BIOS firmware displays an ID string in the lower-left-hand corner of the screen. This ID string comprises various pieces of information about the firmware, including when it was compiled, what configuration options were selected, the OEM license code, and the targeted chipset and motherboard. There are 3 ID string formats, the first for older AMIBIOS, and the second and third for the newer AMI Hi-Flex ("high flexibility") BIOS. These latter are displayed when the Insert key is pressed during power-on self-test.

The original AMI BIOS did not encrypt the machine startup password, which it stored in non-volatile RAM. Therefore, any utility capable of reading a PC's NVRAM was able to read and to alter the password. The AMI WinBIOS encrypts the stored password, using a simple substitution cipher
Substitution cipher
In cryptography, a substitution cipher is a method of encryption by which units of plaintext are replaced with ciphertext according to a regular system; the "units" may be single letters , pairs of letters, triplets of letters, mixtures of the above, and so forth...

.

By pressing the Delete key
Delete key
The delete key , known less ambiguously as forward delete, performs a function when struck on a computer keyboard during text or command editing, which is to discard the character ahead of the cursor's position, moving all following characters one position "back" towards the freed letterspace. The...

 during power-on self-test when a prompt is displayed, the BIOS setup utility program is invoked. Some earlier AMIBIOS versions also included a cut-down version of the AMIDIAG utility that AMI also sold separately, but most later AMI BIOSes do not include this program as the BIOS DMI already incorporates detailed diagnostics.

AMIBIOS is only sold through distributors, not directly to end users. Firmware upgrades and replacements are only available from AMI for its own motherboards. Upgrades and replacements for AMIBIOS customized for a motherboard are only available from the manufacturer or from eSupport.

AMI supplies both DOS and Win32 firmware upgrade utilities for its own motherboards. eSupport only supplies a Win32 upgrade utility.

AMIDiag

AMIDiag is a family of PC diagnostic utilities sold to OEMs only. The AMIDiag Suite was introduced in 1988 and made available for MS-DOS
MS-DOS
MS-DOS is an operating system for x86-based personal computers. It was the most commonly used member of the DOS family of operating systems, and was the main operating system for IBM PC compatible personal computers during the 1980s to the mid 1990s, until it was gradually superseded by operating...

, Microsoft Windows
Microsoft Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

 and Unified Extensible Firmware Interface (UEFI
UEFI
The Unified EFI Forum or UEFI Forum is an alliance between several leading technology companies to modernize the booting process...

) platforms. It includes both the Windows and DOS PC diagnostics programs. Later versions of AMIDiag support UEFI, which allows diagnostics to be performed directly on the hardware components, without having to use operating system drivers or facilities.

Service processor and IPMI

The MegaRAC remote management controller was introduced in 1998 for Dell, that later developed the DRAC. The second generation card, MegaRACG2, provided console and KVM redirection, firewall and battery backup, but was rather expensive. Successive MegaRAC generations, the G3 and G4, provide incremental performance at lower prices.

In the early twentyfirst century the server industry was largely migrating to IPMI technology. AMI launched the MegaRAC PM Firmware Solution in 2002, with code completely independent of AMIBIOS.

With the development of powerful chip-based integrated baseboard management controllers, the focus of AMI shifted to providing firmware-based service processor solutions. Called MegaRAC SP, the firmware implements complete KVM redirection, console redirection and remote media for System-on-Chip. An SoC subsystem complete with MegaRAC SP has a definite cost advantage over card-based alternatives.

StorTrends/ManageTrends

The StorTrends family of network-based backup and storage management software and hardware includes several NAS and iSCSI-based SAN servers with 4 or 16 drive bays.

AMI couples off-the-shelf hardware with the StorTrends iTX storage management firmware platform. StorTrends offers synchronous, asynchronous and snap-assisted replication, thin-provisioning, high-availability grouping and advanced caching.

Reliability and performance is the key for any storage server. StorTrends iTX 2.8 is designed to support Storage Bridge Bay specification that provide Auto-Failover
Failover
In computing, failover is automatic switching to a redundant or standby computer server, system, or network upon the failure or abnormal termination of the previously active application, server, system, or network...

 capability to ensure that any interruption is handled without affecting data. It supports High-availability cluster
High-availability cluster
High-availability clusters are groups of computers that support server applications that can be reliably utilized with a minimum of down-time. They operate by harnessing redundant computers in groups or clusters that provide continued service when system components fail...

, redundancy, scalability, replication, disaster recovery and multiple site backups.

Technical problems

On November 13, 1993, a number of PCs that used the AMIBIOS firmware started at boot-up to play the tune to Happy Birthday repeatdly while halting the computer until a key was pressed. The problem was resolved with a Trojan
Trojan horse (computing)
A Trojan horse, or Trojan, is software that appears to perform a desirable function for the user prior to run or install, but steals information or harms the system. The term is derived from the Trojan Horse story in Greek mythology.-Malware:A destructive program that masquerades as a benign...

-free firmware upgrade from most manufacturers.

The AMI WinBIOS was a 1994 update to AMIBIOS, with a graphical user interface
Graphical user interface
In computing, a graphical user interface is a type of user interface that allows users to interact with electronic devices with images rather than text commands. GUIs can be used in computers, hand-held devices such as MP3 players, portable media players or gaming devices, household appliances and...

 setup screen that mimicked the appearance of Windows 3.1 and supported mouse navigation,unusual at the time. WinBIOS was viewed favourably by Anand Lal Shimpi at AnandTech
AnandTech
AnandTech is an online computer hardware magazine. It was founded in 1997 by then 15-year-old Anand Lal Shimpi, who is the current editor-in-chief and CEO. The web site is recommended as a good resource of hardware reviews for off-the-shelf components addressed to computer building enthusiasts...

, but described by Thomas Pabst at Tom's Hardware as a "big disappointment", in part because of problems with distributing IRQ signals to every PCI and ISA expansion slot.

In July 2008 Linux developers discovered issues with ACPI tables on certain AMIBIOS BIOSes supplied by Foxconn, ASUS, and MSI. The problem is related to the ACPI _OSI method, which is used by ACPI to determine the OS version (in case an ACPI patch only applies to one specific OS). In some cases, the OSI method caused problems on Linux systems, skipping code that was only executed on Windows systems. Foxconn and AMI worked together to develop a solution, which was included in later revisions of AMIBIOS. The issue affected motherboards with Intel Socket 775. Actual system behavior differed based on BIOS version, system hardware and Linux distribution
Linux distribution
A Linux distribution is a member of the family of Unix-like operating systems built on top of the Linux kernel. Such distributions are operating systems including a large collection of software applications such as word processors, spreadsheets, media players, and database applications...

.

Founding

American Megatrends Inc. (AMI) was founded in 1985 by Subramonian Shankar and Pat Sarma with funds from a previous consulting venture, Access Methods Inc. (also AMI). Access Methods was a company run by Pat Sarma and his partner. After Access Methods successfully launched the AMIBIOS, there were legal issues among the owners of he company, resulting in Sarma buying out his partners. Access Methods still owned the rights to the AMIBIOS. Sarma had already started a company called Quintessential Consultants Inc. (QCI), and later set up an equal partnership with Shankar.

By this time the AMIBIOS had become established and there was a need to keep the initials AMI. The partners renamed QCI as American Megatrends Inc., with the same initials as Access Methods Inc.; the renamed company then purchased AMIBIOS from Access Methods. Shankar became the president and Sarma the executive vice-president of this company. This partnership continued until 2001, when LSI Logic purchased the RAID Division of American Megatrends; American Megatrends then purchased all shares of the company owned by Sarma, making Shankar the majority owner.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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