NOTE

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.

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.

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