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"AMR
Stands for (Audio/Modem Raiser) Which is used to convert analog audio to digital audio the card is said to be raiser because it raises the audio"
Edit: That is incorrect. AMR stands for "Audio/Modem Riser". The AMR slot's purpose was similar to that of the, then standard, ISA slots, but specifically designed to accommodate smaller, inexpensive modem riser cards, audio riser cards and network riser cards. Intel introduced them on September 1998 as a way to reduce the total cost of computer systems by dividing the logic between the riser cards and their respective controllers on the motherboards.
Later, Intel replaced AMR slots with CNR (communication and networking riser) slots. Though the two are similar, they slightly differ structurally and CNR cards also differed in two other areas: CNR supported Plug & Play cards and they offered the option to be either software based (via the CPU) or controlled by hardware acceleration (dedicated ASIC). To my knowledge though, riser cards that work in AMR slots also work in CNR slots. Neither slot gained popular acceptance by users, either initially or in time. This was likely because the riser cards relied on the CPU to handle alot of their workload, noticably slowing it down. So that's probably why you won't find AMR-compatible cards anywhere today. In 2000, ACR (Advanced Communications Riser) slots replaced both AMR and CNR, but ultimately integrated components made all three slots obselete.
Sources:
Wikipedia.org
Andrews, Jean. A+ Guide to Managing and Maintaining Your PC, 7th edition.
Boston, MA: Cengage Learning, 2010. Print.
Note:
Nothing is "raised" (as suggested earlier by another user). The reason AMR slots accommodated audio cards is likely because it was it was a low priority component (in terms of the bus traffic going to the south bridge and CPU). Regardless of this, analog to digital audio conversions occur on integrated circuits on the sound card and doesn't raise the volume or any other aspect of the audio data (or data on modem/network cards for that matter).
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What is purpose of a CNR slot?
Communications and Network Riser (CNR) is a interface on a computer motherboard for interfacing a communication device or peripheral. There have been several competing configurations but none of them seem to have really taken the lead.This article puts it a little better perspective:= The Strange Case of the AMR/CNR/ACR Slot =article by: Demir Cutts=== === Nearly everything inside a PC is designed to be user-installable. The Audio Modem Riser (AMR), Communications and Networking Riser (CNR), and Advanced Communication Riser (ACR) slots are exceptions. Although their presence on many recent motherboards intrigues some upgraders, these slots were never intended as general-purpose expansion slots. All of them were designed to be used by OEM system builders, not by backyard mechanics. Here's what you need to know about AMR, CNR, and ACR slots ; AMR slot : Intel developed the AMR slot to provide an easy, standardized way to integrate modem and audio functions into finished systems at minimal cost, but OEM system builders ignored it in droves. Why? Mainly because the AMR slot took the place of a standard PCI slot, and most motherboard designers and system builders rightly preferred having an extra PCI slot to having an AMR slot of dubious utility. The AMR slot also had limited functionality and no support for Plug and Play. The result was that, although some motherboards included an AMR slot, very few AMR-compatible cards were ever developed and those that were achieved only limited distribution. We've seen exactly one AMR card. ; CNR slot : Intel's answer to the problems of AMR was to redesign the AMR slot. The CNR slot, can coexist with a standard PCI slot, allowing either a CNR card or a standard PCI card to use the slot position interchangeably. CNR also adds Plug and Play support and other features of interest to system designers. AMR and CNR are incompatible, at both the physical and electrical level. Although we have seen a few CNR cards, mostly modems and sound adapters, CNR cards are not much easier to find than AMR cards. ; ACR slot : AMR and CNR are both Intel technologies. AMD, VIA and the rest of the everyone-who-is-not-Intel camp came up with an alternative called the ACR slot, which is found on some Intel-free motherboards. The ACR slot is physically a standard PCI slot connector, which you can recognize because it's turned 90 degrees to the other PCI connectors on the motherboard. In theory, the ACR slot offers several advantages over the AMR/CNR slot, including its use of standard connectors and its additional flexibility because of the greater number of available pins. In practice, we've never seen or even heard of a card designed to fit that slot, so it is effectively a wasted connector. Intel warns that the AMR and CNR interfaces are not rigidly defined, so it is quite possible that any given AMR or CNR card simply will not work in a particular AMR or CNR slot. If your motherboard has an AMR, CNR, or ACR slot, we suggest you pretend it's not there.
Which cards can connect to amr bus slot?
You can connect an audio card or a modem card to an audio/modem riser (AMR) slot.
What is the amr expansion slot?
An obsolete slot for voice-modems I think
Which slot does not support a display adapter?
AMR
An amr slot is also called a?
daughter
What is the brown expansion slot called on the motherboard?
It is used to add an internal Graphics card on the AGP slot
If a motherboard has a slot 1 . what cpus is it designed to support?
No motherboard has one slot of RAM
If a motherboard has a slot 1 what CPU is it designed to support?
No motherboard has one slot of RAM
What are some expansion slots contained on the motherboard?
Pci amr agp
How do you get an agp slot?
Buy a motherboard with an AGP slot.
Which of the following is inserted in an AMR slot to provide sound functions?
Daughterboard
Will an 8600Gt work on a via chipset motherboard?
yes, providing the motherboard has the correct slot for it which is why slot standards exist.
