Hardware Secrets
Home | Camera | Case | CE | Cooling | CPU | Input | Memory | Mobile | Motherboard | Networking | Power | Storage | Video | Other
Content
Articles
First Look
Gabriel's Blog
News
Reviews
Tutorials
Main Menu
About Us
Awarded Products
Compare Prices
Datasheets
Dictionary
Download
Drivers
Forums
Links
Manufacturer Finder
Newsletter
On The Web
RSS Feed
Test Your Skills
Twitter
Newsletter
Subscribe today!
Search




Recommended
The Winn L. Rosch Hardware Bible, 6th Edition (2 Vol. Set)
The Winn L. Rosch Hardware Bible, 6th Edition (2 Vol. Set), by Winn L Rosch (Que), starting at $2.31
Home » Motherboard » Bus
AMR, CNR and ACR slots
Author: Gabriel Torres
Type: Tutorials Last Updated: October 23, 2004
Page: 1 of 4
$ Check REAL-TIME pricing for IOGEAR PCI to 5 Ports USB2.0 Card Model GIC251U - Retail $.
Newegg: $19.99 CircuitCity: $19.99
Wal-Mart: $21.98 CDW: $20.99

Introduction

AMR (Audio Modem Riser), CNR (Communications and Network Riser) and ACR (Advanced Communications Riser) are slots that you can find on your motherboard that have the same goal: to install HSP (Host Signal Processing) devices to your PC. These devices can be modems, sound cards and network cards.

HSP devices lack self-control, it is the computer CPU that controls the device. As a result, the device is fairly cheap, because it doesn't have any fancy circuitry. But, on the other hand, the PC loses a little bit of its performance, since the processor will waste a little bit of its time controlling the device. This kind of device is also commonly refered as "software-controlled" (e.g. "soft modems").

Usually AMR, CNR and ACR devices are offered by the motherboard manufacturer as an option to the motherboard. For example, your motherboard can have a AMR modem as an option. You can also buy such devices on the market. An AMR modem costs USD 15 or less, but they are not so easy to find.

You will only find one of these slots at a time, i.e. if a motherboard has AMR slot, you won't find a CNR nor an ACR slot on it.

Let's take a look on the physical differences between these slots.

Pages (4): [1] 2 3 4 »
Print Version | Send to Friend | | Bookmark Article | Comments (0)

Related Content
  • How On-Board Audio Works
  • Cloned Motherboards
  • Small Details on Motherboards
  • Information on ”Unbranded” Cards
  • ECS Factory Tour in ShenZhen, China

  • Recommended Deal.
    USB 2.0 PCI Card Adapter 5-Port Hi-Speed 5PORTIOGEAR PCI to 5 Ports USB2.0 Card Model GIC251U - Retail


    Newegg: $19.99 Wal-Mart: $21.98
    TigerDirect: $19.99 CDW: $20.99

    RSSLatest News
    IN WIN LAN Party in Southern California
    November 20, 2009 - 12:37 PM PST
    Patriot Announces PS-100 SSD Series
    November 19, 2009 - 7:30 AM PST
    Antec Launches TPQ-1200 PSU
    November 18, 2009 - 11:30 AM PST
    AMD/ATI Launches Radeon HD 5970
    November 18, 2009 - 10:18 AM PST
    OCZ Launches Colossus SSD Series
    November 17, 2009 - 1:39 PM PST
    NZXT Unleashes Tempest EVO Mid-Tower Case
    November 17, 2009 - 1:06 PM PST
    nVidia Launches GeForce GT 240
    November 17, 2009 - 10:18 AM PST
    Arctic Cooling Announces Accelero TWIN TURBO PRO VGA Cooler
    November 16, 2009 - 11:46 AM PST
    PowerColor Announces PLAY! HD5770 Video Card
    November 13, 2009 - 12:51 PM PST
    G.Skill Announces Falcon II SSD Series
    November 11, 2009 - 3:31 PM PST
    .:: More News ::.

    RSSLatest Content
    Ultra X4 500 W Power Supply Review
    Seagate Barracuda XT 2 TB Hard Disk Drive Review
    Nintendo Wii Fit Plus Review
    AMD ATI Chips Comparison Table
    nVidia Chips Comparison Table
    Gigabyte G41M-ES2L Motherboard
    Netflix on Playstation 3 Review
    CM Storm Sentinel Advance Mouse Review
    Titan Skalli CPU Cooler Review
    Nexus RX-6300 630 W Power Supply Review
    Gigabyte P55-UD6 Motherboard
    Nintendo Wii Review
    SilverStone Grandia GD04 Case Review
    Can We Trust the 80 Plus Certification?
    NZXT Gamma Case Review

    Our Most Popular Articles
    Maximum CPU Temperature
    1,078,060 views
    How to Find Out Your Motherboard Manufacturer and Model
    705,773 views
    nVidia Chips Comparison Table
    678,825 views
    Connecting Two PCs Using a USB-USB Cable
    593,103 views
    How To Correctly Apply Thermal Grease
    562,225 views
    AMD ATI Chips Comparison Table
    559,855 views
    ATI Radeon X1300 Pro Review
    487,860 views
    ATI Radeon X1600 XT Review
    477,008 views
    How To Perform a BIOS Upgrade
    394,269 views
    Sempron vs. Athlon XP
    338,431 views

    Latest Threads in Our Forums
    Ultra X4 500 W Power Supply Review
    by Hardware Secrets Team
    Dell Inspiron 6000 Powers but will not boot...
    by pistonpete
    IN WIN LAN Party in Southern California
    by Hardware Secrets Team
    Getting A Hard Copy
    by Trevorrross
    Am I Making The Right Choice?
    by need2know
    Is it available to mount the Zalman cooler?
    by Olle P
    dsl modem prob
    by Sherry
    Seagate Barracuda XT 2 TB Hard Disk Drive Review
    by Hardware Secrets Team
    Overclocking a dell xps 410
    by 6dracing
    How to recover mp3's, pdf & chm files, applications from formated harddrive partition
    by tomahawk 1705
    .:: Visit Our Forums ::.


    © 2004-9, Hardware Secrets, LLC. All rights reserved.
    Advertising | Legal Information | Privacy Policy
    All times are Pacific Standard Time (PST, GMT -08:00)