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2 System Board
Accessory Board Slots
Either standard AGP graphics cards or AGP Pro graphics cards drawing less
than 50W of power can be used (below 25W a standard AGP connector may
be used), with power being provided through 3.3 V, 5 V, or 12 V power rails.
NOTE AGP Pro graphics cards drawing more than 50W (“high-power” AGP Pro
cards) and AGP 3.3V graphics cards cannot be used in the Minitower’s AGP
slot.
The AGP Pro Universal slot is backwards compatible with both AGP 1x and
2.x modes (using 1.5 V signalling), and AGP 4x mode (where 1.5 V signalling
is required).
The AGP interface and bus are explained on page 38
.
PCI Slots
There is a total of five Peripheral Component Interconnect (PCI) 32-bit,
33 MHz connectors on the system board.
The PCI slots accept 3.3 V and 5 V PCI 32-bit 33 MHz cards, and Universal
PCI cards (which are 3.3 V or 5 V compatible). Refer to the table on the
following page for the different PCI board installations.
The maximum supported power consumption per slot is 25W, either from
the 5V or the 3.3V supply and must respect the electrical specifications of
the PCI 2.2 specification. Total power consumption for the PCI slots must
not exceed 60 W.
The power consumption of each PCI board is automatically reported to the
system through the two Presence Detect pins of each PCI slot. These pins
code the following cases:
•
No accessory board in the PCI slot.
•
7 W maximum PCI board in the PCI slot.
•
15 W maximum PCI board in the PCI slot.
•
25 W maximum PCI board in the PCI slot.