HP XU800 User Manual
Page 32
32
2 System Board
Accessory Card Slots
If an AGP Pro card (
>
25 W and
≤
50 W) is installed, then the PCI slot 1 is
made inaccessible as defined in the AGP Pro specification (PCI slot must be
left unoccupied to provide its sources, in terms of cooling and electrical
power, to the AGP Pro card. The following table shows the various PCI
board installations for the different PCI slots:
The system board and BIOS support the PCI specification 2.2. This
specification supports PCI-to-PCI bridges and multi-function PCI devices,
and each of the five PCI slots have Master capabilities.
PCI slots 1, 2 and 5 are connected to the ICH PCI 32-bit 33 MHz bus, while
PCI slots 3 and 4 are connected to the PCI 64-bit 66 MHz bus via the P64H.
In addition to these PCI slots, the following devices are also connected to a
PCI Bus:
The PCI 64-bit 66 MHz bus is explained on
. The PCI 32-bit 33 MHz
PCI Card
5 V
3.3 V
Universal
(3.3 V or 5 V compatible)
PCI Slot
32-bit/
33 MHz
64-bit/
33 MHz
32-bit/
33 MHz or 66 MHz
64-bit/
33 MHz or 66 MHz
32-bit/
33 MHz or 66 MHz
64-bit/
33 MHz or 66 MHz
Slots 1, 2 & 5
5 V,
32-bit/33 MHz
yes
yes
1
not supported
not supported
yes
yes
2
yes
1
yes
1,2
Slots 3 and 4
3.3 V,
64-bit/66 MHz
not
supported
not
supported
33 MHz
66MHz
33 MHz
66 MHz
33 MHz
66 MHz
33 MHz
66 MHz
yes
3,4
yes
4
yes
3
yes
yes
3,4
yes
4
yes
3
yes
1.
A 64-bit card can be installed in a 32-bit slot. However, this card will only operate in 32-bit mode.
2.
A 66 Mhz card can be installed in a 33 MHz slot. However, this card will only operate in 33 MHz mode.
3.
A 33 MHz card can be installed in a 66 MHz slot, However, the card will operate in 33 MHz mode and will force all other PCI devices to operate
at 33 MHz as well.
4.
A 32-bit card can be installed in a 64-bit slot without preventing other 64-bit PCI devices to operate in 64-bit mode.
PCI 32-bit/33 MHz Bus
PCI 64-bit/66 MHz Bus
ICH (Input/Output Controller Hub) chip, bridge between the MCH (Memory Controller
Hub), USB ports and IDE buses.
Digital audio CS4280 controller.
Onboard AIC7892 SCSI U160 controller.