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Configuration and Initialization Intel® Server Board SE7501WV2 TPS
Revision 1.0
Intel reference number C25653-001
46
23 On-board U320 SCSI controller
24 First slot of the riser card
25 Second slot of the riser card (for a 3-slot riser card)
26 Third slot of the riser card (for a 3-slot riser card)
4.6.3.2 P64-B Arbitration
The P64-B supports five PCI masters (the on-board gigabit ethernet controller, three slots on
the 3-slot PCI Riser, and the P64H2). All PCI masters must arbitrate for PCI access using
resources supplied by the P64H2. The host bridge PCI interface (P64H2) arbitration lines
REQx* and GNTx* are special cases in that they are internal to the host bridge. The following
table defines the arbitration connections.
Table 15. P64-B Arbitration Connections
P64H2 Signals Device
P_REQ1*/P_GNT1* Embedded Ethernet controller
P_REQ2*/P_GNT2* P64-B: Top slot of the 3-slot riser
P_REQ3*/P_GNT3* P64-B: Middle slot of the 3-slot riser
P_REQ4*/P_GNT4* P64-B: Bottom slot of the 3-slot riser
4.6.3.3 P64-C Arbitration
P64-C supports five PCI masters (three slots on the 3-slot PCI riser, the embedded U-320 SCSI
controller, and the P64H2). All PCI masters must arbitrate for PCI access, using resources
supplied by the P64H2. The host bridge PCI interface (P64H2) arbitration lines REQx* and
GNTx* are special cases in that they are internal to the host bridge. The following table defines
the arbitration connections.
Table 16. P64-C Arbitration Connections
P64H2 Signals Device
S_REQ1*/S_GNT1* Embedded U320 SCSI controller
S_REQ2*/S_GNT2* P64-B: Top slot of the 3-slot riser
S_REQ3*/S_GNT3* P64-B: Middle slot of the 3-slot riser
S_REQ4*/S_GNT4* P64-B: Bottom slot of the 3-slot riser
4.6.3.4 Zero Channel RAID (ZCR) Capable Riser Slot
The SCSI version of the SE7501WV2 server board is capable of supporting the following zero
channel RAID controllers, the Intel® SRCZCR, SRCMRU and SRCMRX RAID Adapter and the
Adaptec* 2000S RAID adapter. ZCR cards are only supported in the first slot of the 3-slot PCI
riser cards or the 1-slot riser cards used on the P64-C PCI segment.