HP AlphaServer GS1280 Model 16 Specification page 26

QuickSpecs
ES/GS Common Options
Standard I/O Building Block Drawer Slot Specifications
Port (Bus) # Slot #
0 1
2
3
1 1
2
2 1
2
3
4
5
6
3 1
1.
Modules designed for 3.3V signaling and 66-MHz bus speed cannot operate in Port 0 - slots 2 and 3.
2. In Port 2 of a Standard I/O Drawer, if PBXGG-AA (RADEON PCI Graphics adapter) is installed together with another
card instead of 66 MHz, the bus will run at 50 MHz maximum. If RADEON is alone in slot 1, the bus will run at 66
MHz.
3.
For Port 0, slots 2 and 3 are keyed for 5V adapters
High Performance I/O Drawer used in ES47, ES80, and GS1280 Systems
All universal or 3.3V PCI and PCI-X cards are supported,
EXCEPT: UltraSCSI wide differential adapter, 32-bit/33-MHz PCI adapter (3X-KZPBA-CC)
PCI-X protocol is used on the bus, but reverts to PCI protocol in these cases:
When a PCI card is in the slot
When Gigabit Ethernet, Rev A (DEGXA-SA/TA) is in the slot
High-performance I/O Drawer Slots Specifications
I/O
Connection
Port (Bus) #
to EV7
Processor
0 1
0 2
1 1
1 2
2 1
2 2
3 1
3 2
Maximum Bus Speed
100 MHz
33 MHz
33 MHz
133 MHz
133 MHz
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
66 MHz
4X AGP
Maximum Bus
Slot #
Speed
Slot 1 133 MHz
Slot 1 133 MHz
Slot 1 133 MHz
Slot 1 133 MHz
Slot 1 133 MHz
Slot 1 133 MHz
Slot 1 133 MHz
Slot 1 133 MHz
DA - 11921 Worldwide — Version 24 — July 23, 2007
HP AlphaServer GS1280 Systems
Bus Loading,
Adapters Installed
Signal Voltage
(contiguously starting
with Slot 1)
3.3V
1 PCI
3
5.0V 1 PCI-X
2 or 3 PCI
3
5.0V
3.3V 1 PCI-X
2 PCI-X
3.3V
1 or 2 PCI
3.3V
1 to 3 PCI
3.3V
4 or 5 PCI
3.3V
6 PCI
3.3V
1 to 5 PCI-X
3.3V
6 PCI-X
3.3V
1.5V 1 AGP
Signal Voltage
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
Max Bus Speed
66 MHz
100 MHz
33 MHz
1
133 MHz
100 MHz
66 MHz
2
66 MHz
50 MHz
33 MHz
66 MHz
33 MHz
4X
Bus Loading,
Adapters Installed
Max Bus Speed
(contiguously starting
with Slot 1)
For each slot
1 PCI
1 PCI-X
66 MHz
133 MHz
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