Technical Product Specification

Intel® Server Board S2600IP and Intel® Workstation Board W2600CR TPS Functional Architecture
Revision 1.4 Intel order number G34153-004 33
3.2.2.4.4 Lockstep Channel Mode
In Lockstep Channel Mode, each memory access is a 128-bit data access that spans Channel 0
and Channel 1, and Channel 2 and Channel 3. Lockstep Channel mode is the only RAS mode
that allows SDDC for x8 devices. Lockstep Channel Mode requires that Channel 0 and Channel
1, and Channel 2 and Channel 3 must be populated identically with regards to size and
organization. DIMM slot populations within a channel do not have to be identical but the same
DIMM slot location across Channel 0 and Channel 1 and across Channel 2 and Channel 3 must
be populated the same.
3.2.3 Processor Integrated I/O Module (IIO)
The processor’s integrated I/O module provides features traditionally supported through chipset
components. The integrated I/O module provides the following features.
3.2.3.1 PCI Express* Interfaces
The integrated I/O module incorporates the PCI Express* interface and supports up to 40 lanes
of PCI Express*. Following are key attributes of the PCI Express* interface.
The Intel
®
Server Board S2600IP and Intel
®
Workstation Board W2600CR support PCIe slots
from two processors.
From first processor:
 Slot 1: PCIe Gen3 x16 connector
 Slot 2: PCIe Gen3 x8 connector
 Slot 3: PCIe Gen3 x16 connector
From second processor:
 Slot 4: PCIe Gen3 x8 connector
 Slot 5: PCIe Gen3 x16 connector
 Slot 6: PCIe Gen3 x8 connector
 Slot 7: PCIe Gen3 x16 connector
 Slot 8: PCIe Gen2 x4 electrical with x8 physical connector.
Table 7. Processor PCIe Connectivity
CPU#
Device
Physical
Connection
IOU#
PORT
(MUX=0)
Electrical
Width
PORT
(MUX=1)
Electrical
Width
Comment
CPU0
Slot1
X16
1
3D-3C-
3B-3A
X16
3D-3C-
3B-3A
X16
CPU0
Slot2
X8
0
2D-2C
X8
N/A
0
CPU0
Slot3
X16
0
2B-2A
X8
2D-2C-
2B-2A
X16
X8 MUX
CPU0
SASM
X8 Mezz
Connector
2
1A
X8
1B-1A
X8
X4 MUX
CPU0
PBG
upgrade
N/A
2
1B
X4
N/A
0
8xDrives
SATA/SAS
CPU0
PBG
N/A
DMI2
0
X4 Gen2
0
X4 Gen2
DMI2
CPU1
Slot4
X8
1
3D-3C
X8
N/A
0