What is an AMR slot? What is the AMR connector on the motherboard used for?

What is obsolete is no longer used now...

AMR (Audio Modem Riser) is an open industry standard that defines expansion cards that support both sound and modem functions. With this design, it is possible to reduce costs and address some of the functional limitations of the motherboard's integrated sound and modem subsystems.

Due to electromagnetic interference and other unfavorable factors, the most important analog I-O (codec and DAA) circuitry of the modem cannot be directly implemented on the motherboard for the time being. One of the most important reasons why Intel developed this set of AMR rules is to solve this problem, moving the analog I-O circuit to a separate card, and leaving the other components on the motherboard.

In addition, the sound subsystem is not currently perfectly integrated into the motherboard, and its signal-to-noise ratio is still not up to the mark. With an open, industry-standard add-in card design, system vendors can implement sound and modem functions on the motherboard at a fraction of the cost using standard or dedicated slots.

The basic AMR architecture supports hardware acceleration of the sound and modem subsystems. The accelerator sits between the pre-processed data source and the processed data destination, and it takes the pre-processed data directly from the main memory, and then passes it directly to the decoder chip through the AC link. It is because of this scalability on the hardware that the system factory.

The vendor can choose which controller to use as the AC link master. In the future, more and more hardware devices will be integrated together, which will save space and reduce costs.

You can't plug in a graphics card.

AMR is an abbreviation for Audio Modem Riser, which can only plug in a sound card and a cat.

Graphics cards are basically AGP now

Currently, only the IR expansion port can be plugged into the AMR.

As long as you have this kind of graphics card, it's OK, so far it doesn't seem to be.

AMR: (Audio Modem Riser) specification, 1998, in which the conversion circuit of digital signal and analog signal is made separately on a single circuit card.

The location of the AMR socket is generally near the PCI socket (white) on the motherboard, which is relatively short (only about 5 cm) and has a brown appearance.

The AMR slot can be used to plug in an AMR sound card or an AMR modem card.

Since most integrated motherboards now have AC'97 audio chips integrated into them, the AMR slot is mainly used with the AMR modem.

AMR modem card occupies more CPU resources than the general built-in soft modem card, the effect is not ideal, and it does not have much advantage over the built-in modem card.

AMR slots were soon replaced by CNRs.

On the motherboards of the Inter810 chipset or the MVP4 of the VIA, the Apollo Pro Plus 133 chipset, or some of the Inter 815 chipset, there is an AMR slot with a 5cm larger length.

AMR (Audio Modem Riser) stands for Sound Modem Card. The sound function part was originally designed to the AMR's CODEC chip and IO circuit, but most of them have been integrated into the motherboard, that is, the AC97 sound effect card, and now the AMR only has the function of modem.

AMR operations are completed by the CPU, which occupies a certain amount of CPU resources. Inter's FW82801 ICH chip and VIA's VT82C686A's Southbridge chip have integrated AMR function.

AMR (Adaptibve Multi-Rate) is an audio format. It is mainly used for the audio of mobile devices, and the compression ratio is relatively large, but the quality is relatively poor compared to other compression formats.

Please click Enter a description.

I sent the AMR recorded by Huawei phone to my phone (my Android phone, vivo's) through computer QQ. Other brands are not clear), click on this message in the mobile phone QQ, and you can listen to it.

A super small audio format, a one-minute recording is about 100kb

ISA slots can be plugged into graphics cards, sound cards, network cards and expansion cards such as so-called multi-function interface cards. AGP Slot PCI Express Slot.

There are several... Expansion graphics card slots, VGA slots, hard disk slots, network cards, sound cards, etc.

The PCI slot is used to plug into fixed electronic devices.

PCI interface is an abbreviation for Peripheral Component Interconnect Standard. It is the most widely used interface in personal computers.

At present, almost all motherboard products have a slot for this PCI interface, and PCI slot is also the type of slot with the largest number of motherboards. The currently popular desktop motherboards, ATX structure motherboards generally have 5 6 PCI slots, while the smaller MATX motherboards also have 2 3 PCI slots, showing its wide application prospects.

The PCI bus is a tree structure that is independent of the CPU bus. It can work in parallel with the CPU bus. The PCI device and the PCI bridge can be connected to the PCI bus.

Only one PCI master is allowed on the PCI bus, and all other devices are PCI slaves. In addition, read and write operations can only be performed between the master and slave devices. The data exchange between the slaves needs to be transmitted through the master.

The PCI slot can be used to install various expansion cards in the PCI slot.

The PCI slot is the main expansion slot of the motherboard, and by plugging in different expansion cards, you can get almost all the functions that the computer can achieve, and it is a veritable "all-in-one" expansion slot.

PCI-E cannot be plugged into PCI slots;

PCI-E interface and PCI interface are not the same concept;

PCI supports a maximum channel speed of 33 MHz 32bits. and provides a maximum bandwidth of 133mb s. However, each PCI interface does not have its own independent transmission channel.

Therefore, the maximum bandwidth of 133MB S must be shared by each connected PCI device;

The difference between PCI-E and PCI is: It is connected to the peripherals by the motherboard, south bridge or north bridge through a point-to-point connection. At the heart of PCI-E is the PCI-E pipeline. Each individual PCI-E pipeline operates on the frequency.

It is a different type of chip from a PC. Seek adoption.