Bus Architecture - IBM F80 Service Manual

Rs/6000 enterprise server
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Bus Architecture

Ten PCI slots are available:
v Six of the slots are 64-bit PCI full-sized slots at 66 MHz, 3.3 volts.
v Four of the slots are 64-bit PCI full-sized slots at 33 MHz, 5 volts.
v Bus 1 contains:
– PCI slot 3
– PCI slot 4
– PCI slot 5
– Integrated Ultra2 SCSI
v Bus 2 contains:
– PCI slot 6
– PCI slot 7
– PCI slot 8
– Integrated Ethernet (32-bit)
v Bus 3 contains:
– PCI slot 9
– PCI slot 10
– PCI slot 11
– PCI slot 12
The PCI buses support both 32-bit and 64-bit adapters. Slots 3, 4, 5, 8, 9, and 10
support adapters running at 3.3 volts at up to 66 MHz. Slots 6, 7, 11, and 12 support
adapters running at 5 volts at 33 MHz. The server data flows are shown in "Data Flow
with One-Way Processor" on page 6 and "Data Flow with Two- to Six-Way Processor"
on page 7.
Microprocessor
The Models F80 and 6F1 can have one to six processors, of either of two processor
types, in various configurations:
v Minimum configuration is one 450 MHz processor, which has 2 MB of L2 cache.
v Two or four 450 MHz processors, each with 4 MB of L2 cache.
v Six 500 MHz processors, each with 4 MB of L2 cache.
OR
v Minimum configuration is either one 600 MHz processor, which has 2 MB of L2
cache, or one 750 MHz processor, which has 8 MB of L2 cache.
v Two or four 600 MHz processors, each with 4 MB of L2 cache.
v Two or four 750 MHz processors, each with 8 MB of L2 cache.
v Six 668 MHz processors, each with 8 MB of L2 cache.
v Six 750 MHz processors, each with 8 MB of L2 cache.
The Model 6F0 can have one to four processors, of either of two processor types, in
various configurations:
v Minimum configuration is one 450 MHz processor, which has 2 MB of L2 cache.
v Two or four 450 MHz processors, each with 4 MB of L2 cache.
OR
Chapter 1. Reference Information
3

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