3.11 LS Expansion Cards Questions and Answers
Which bus type is commonly used by graphics cards?
HDMI and VGA
What is an advantage of the PCIe bus over the PCI bus?
PCIe is faster then PCI, it also has higher quality service.
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3.11 LS Expansion Cards Questions and
Answers
Which bus type is commonly used by graphics cards? - answer HDMI and VGA
What is an advantage of the PCIe bus over the PCI bus? - answer PCIe is faster
then PCI, it also has higher quality service.
Which type of devices typically use Mini PCI cards? - answer Mini-ITX or Laptops
What type of slot can a PCIe x1 expansion card be placed in? - answer A Tower PC,
inside the Motherboard. (PCIe x16 slot)
Peripheral Component Interconnect (PCI) - answer PCI was developed to replace
the obsolete ISA and VESA bus standards. PCI:
Is processor independent, meaning the CPU and PCI bus can process concurrently
Supports plug and play, meaning installed devices are detected and configured
automatically
Most commonly used by devices such as sound cards, modems, network cards, and
storage device controllers
Can run at 33 MHz and transfer data at 133 MB/s or run at 66 MHz and transfer data at
266 MB/s
PCI Extended (PCI-X) - answer PCI-X was built on existing the PCI architecture and
aimed to overcome standard PCI bandwidth limitations. PCI-X:
Uses a 64-bit interface to achieve faster data speeds
Operates at 133 MHz, resulting in data rates of 1.06 GB/s
Is typically used by servers for network cards or Fibre Channel adapters
Is backwards compatible with standard PCI slots (i.e., a PCI-X card can be installed in a
standard PCI slot)
When installed in a standard PCI slot, PCI-X cards are throttled down to standard PCI
speeds.
PCI Express (PCIe) - answer PCIe was developed to replace PCI, PCI-X, and AGP.
Instead of a shared bus, each PCIe slot links to a switch that prioritizes and routes data
through a point-to-point dedicated connection and provides a serial, full-duplex method
of transmission. PCIe uses several different connection types.
PCIe types are defined by the number of transmission lanes that are used to transfer
data. For example, PCIe x1 provides one lane for transmission (x1), while PCIe x16
provides sixteen lanes for transmission. PCIe defines x2, x4, x8, x16, and x32
connection types.
PCIe data rates depend on the protocol version and number of transmission lanes:
1.0: 250 MB/s (x1); 4 GB/s (x16)
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