Table 10.
Intel
®
Xeon
®
Processor E3-1125C with Intel
®
Communications Chipset 8910
Development Kit PCIe Configuration
Header
Description
J6E2
J6E2 must be Open for the PCH with BIOS V35 or later.
J3F2
Keep EP in Reset
Jumper must be Closed (inserted).
Removing the jumper (Open) will keep EP in Reset (Low-true signal forced Low).
Figure 4.
Intel
®
Xeon
®
Processor E3-1125C with Intel
®
Communications Chipset 8910
Development Kit PCIe Headers
Table 11.
Intel
®
Xeon
®
Processor E3-1125C with Intel
®
Communications Chipset 8910
Development Kit Default Header Configuration
SKU
J6F6
J6E4
J6E2
J3F2
J6E5
J6E6
Description
#1
Closed
Closed
Open
Closed
Closed
X
Bifur = X4 (0,0), Lane Reverse
#2
Closed
Closed
Open
Closed
Closed
X
Bifur = X4 (0,0), Lane Reverse
#3
Closed
Open
Open
Closed
Closed
X
Bifur = X8 & X8 (1,0), Lane
Reverse
#4
Open
Open
Open
Closed
Closed
X
Bifur = X16 (1,1), Lane Reverse
1.13
Rear Panel I/O Connectors
Table 12.
Rear Panel I/O Connectors
Ref Des Location
Description
J8A1
USB Ports 0-3
Connector
The rear panel connector provides a quad-stacked USB
2.0 ports. Additionally, on board there is a header to
allow connection to a front panel header. There are three
USB modes:
• RMH
• UHCI
• EHCI
continued...
Crystal Forest—Introduction
Intel
®
Xeon
®
Processor E3-1125C with Intel
®
Communications Chipset 8910 Development Kit
User Guide
October 2012
16
Order No.: 328009-001US