Foxconn 915P7MC-S - Manual (Page 26)

Chapter 2 Installation Instructions
19
Expansion Slots
This motherboard includes three 32-bit Master PCI bus slots and one PCI Ex-
press x 16 slot (only for 915 G/P).
PCI Slots
The expansion cards can be installed in the three PCI slots. When you install or
take out such cards, you must make sure that the power plug has been
pulled out. Please read carefully the instructions provided for such cards, and
install and set the necessary hardware and software for such cards, such as
the jumper or BIOS setup.
PCI Express Slot
PCI Express will offer the following design advantages over the PCI and AGP
interface:
-Compatible with existing PCI drivers and software and Operating Systems.
-High Bandwidth per Pin. Low overhead. Low latency.
-PCI Express supports a raw bit-rate of 2.5 Gb/s on the data pins. This
results in a real bandwidth per pair of 250 MB/s.
-A point to point connection, allows each device to have a dedicated connec-
tion without sharing bandwidth.
-Ability to comprehend different data structure.
-Low power consumption and power management features
PCI Express will take two forms, x16 and x1 PCI Express slots. Whereas the x16
slot is reserved for graphic/video cards, the x1 slot is designed to accommo-
date less bandwidth-intensive cards, such as a modem or LAN card.
The difference in bandwidth between the x16 and x1 slots is notable to be sure,
with the x16 slot pushing 4GB/sec (8GB/sec concurrent) of bandwidth, and the
x1 PCI Express slot offering 250MB/sec.
Warning:
If a performance graphics card was installed into 16x PCI Express slot,
2 x 12 pin power supply was strongly recommended since that card
maybe draws 75W power.