Motherboard Studies Flashcards
CPU
Central Processing Unit
ATX
Advance Technology eXtended (standard Motherboards since 1995)
BIOS
Basic Input Output System
Chipset
Central meeting point for many devices
Northbridge
Chipset in charge of the connection to high data transfer devices such as PCI Express video cards and the RAM.
Southbridge
Chipset in charge of the connection to all the secondary controllers: USB, SATA, Firewire, etc
MCH
Memory Controller Hub. Intel’s name for the NorthBridge Chipset.
ICH
Input/Output Controller Hub. Intel’s name for the SouthBridge Chipset.
On-Die Northbridge
Northbridge built in processor (Intel)
Front-Side-Bus
Bus between the processor and the NorthBridge (MCH memory control hub). Only present on motherboards with North/SouthBridge chips (before 2008). Actually a parallel bus.
DMI
Direct Media Interface. High-speed point-to-point interconnection between the chipset and the processor. Uses lanes to send/receive info. (Intel) Better than Front-Side Bus.
HyperTransport
AMDs version of DMI which is way faster because AMD still uses Northbridge and Southbridge chipsets; Northbridge in charge of video card, Processor in charge of RAM. Speed used more for video card.
QPI
Quick Path Interconnect - Intel’s more powerful DMI, as fast as HyperTransport (used by more powerful workstations and server motherboards)
Memory Bus
Connects MCH to RAM. Also known as the address bus.
SATA
Serial Advanced Technology Attachment - Seven pin Serial ports connect to SouthBridge. Used to connect Hard Drives, Optical Drives (cd,dvd,bdr)
IDE
Intregrated Drive Electronics. 40 pins Parallel ports (PATA). Used to connect Hard Drives and Optical Drives (cd and dvd).
PCI
Peripheral Component Interconnect bus. Developed in the 90s by Intel to replace ISA bus . Connects directly to southbridge or main chipset. Connects modems, sound cards, video and network adapters.
AGP
Accelerated Graphics Port . Alleviated disadvantages with PCI for video (3D included). Allowed video card to be connected to northbridge.
PCIe
PCI Express connects directly to northbridge or directly to processor. Lessor PCIe connect to the southbridge/main chipset. Send info within full duplex lanes (send and receive at the same time).
AMR
Audio/Modem Riser, Communications. Designed by Intel to offer a slot with a small footprint that had the capability to accept soundcards or modems.
CNR
Communications andNetworking Riser. Meant for specialized networking, audio and modem technologies. CNR could be software and hardware controlled. Obsolete 2007.
PCMCIA
Personal Computer Memory Card International Association - organization that developed the PC Cards technology. Originally designed for additional storage. Later this technology was used for modems, network cards, combo cards and hard drives.
I/O Ports
Cluster of ports at the back of the computer.
IEEE 1394a
Firewire or i.Link. Used for devices that demand low-latency transfer of data. Music or video devices use this port. v1 400 Mbps