Functional Architecture

 

Intel® Server Board SE7520JR2

 

 

 

 

 

 

CKE

O

Clock Enable for Memory

 

 

 

 

 

 

 

CS#[1..0]

O

Chip Select for Memory

 

 

 

 

 

 

 

DQM[7..0]

O

Memory Data Byte Mask

 

 

 

 

 

 

 

DSF

O

Memory Special Function Enable

 

 

 

 

 

 

 

HCLK

O

Memory Clock

 

 

 

 

 

 

 

[11..0]

O

Memory Address Bus

 

 

 

 

 

 

 

MD[31..0]

I/O

Memory Data Bus

 

 

 

 

 

 

 

RAS#

O

Row Address Select

 

 

 

 

 

 

 

WE#

O

Write Enable

 

 

 

 

 

 

3.4.7.3Dual video

The BIOS supports single and dual video modes. The dual video mode is enabled by default.

In single mode (Dual Monitor Video=Disabled), the onboard video controller is disabled when an add-in video card is detected.

In dual mode (Onboard Video=Enabled, Dual Monitor Video=Enabled), the onboard video controller is enabled and will be the primary video device. The external video card will be allocated resources and is considered the secondary video device. BIOS Setup provides user options to configure the feature as follows:

Onboard Video

Enabled

 

 

 

Disabled

 

 

Dual Monitor Video

Enabled

 

Shaded if onboard video is set

 

Disabled

 

to "Disabled"

3.4.8Network Interface Controller (NIC)

The Intel 82546GB dual-channel gigabit network interface controller supplies the baseboard with two network interfaces. The 82546GB is a highly integrated PCI LAN controller in a 21 mm2 PBGA package. Each channel is capable of supporting 10/100/1000 operation and alert-on-LAN functionality. Both channels can be disabled by using the BIOS Setup utility, which is accessed during POST. The 82546GB supports the following features:

64-bit PCI-X Rev. 1.0 master interface

Integrated IEEE 802.3 10Base-T, 100Base-TX and 1000Base-TX compatible PHY

IEEE 820.3ab auto-negotiation support

Full duplex support at 10 Mbps, 100Mbps and 1000 Mbps operation

Integrated UNDI ROM support

MDI/MDI-X and HWI support

Low power +3.3 V device

64

Revision 1.0

 

C78844-002