Removable Media Drives; Floppy Disk Support; Keyboard And Mouse Support; Wake-Up Control - Intel SE7520JR2 Technical Manual

Intel® Server Board SE7520JR2
Note: The appropriate RJ45-to-DB9 adapter should match the configuration of the serial device
used. One of two pin-out configurations is used, depending on whether the serial device requires
a DSR or DCD signal. The final adapter configuration should also match the desired pin-out of
the RJ45 connector, as it can also be configured to support either DSR or DCD.
3.4.10.3

Removable Media Drives

The BIOS supports removable media devices, including 1.44MB floppy removable media
devices and optical devices such as a CD-ROM drive or DVD drive (read only). The BIOS
supports booting from USB mass storage devices connected to the chassis USB port, such as a
USB key device.
The BIOS supports USB 2.0 media storage devices that are backward compatible to the USB
1.1 specification.
3.4.10.4

Floppy Disk Support

The floppy disk controller (FDC) in the SIO is functionally compatible with floppy disk controllers
in the DP8473 and N844077. All FDC functions are integrated into the SIO including analog
data separator and 16-byte FIFO. On the Server Board SE7520JR2, floppy controller signals
are directed to two separate connectors. When the baseboard is used with any of the
backplanes designed for either the Server Chassis SR1400 or SR2400, the floppy signals are
directed through the 100-pin backplane connector (J2J1). If no backplane is present, a floppy
drive can be attached to the on-board legacy 36-pin connector (J3K2).
Note: Using both interfaces in a common configuration is not supported.
3.4.10.5

Keyboard and Mouse Support

Dual stacked PS/2 ports, located on the back edge of the baseboard, are provided for keyboard
and mouse support. Either port can support a mouse or keyboard. Neither port will support "Hot
Plugging" or connector insertion while the system is turned on.
The system can boot without a keyboard. If present, the BIOS detects the keyboard during
POST and displays the message "Keyboard Detected" on the POST Screen
3.4.10.6

Wake-up Control

The Super I/O contains functionality that allows various events to control the power-on and
power-off the system.
3.4.11

BIOS Flash

The BIOS supports the Intel
2MB programmable. The flash ROM contains system initialization routines, setup utility, and
runtime support routines. The exact layout is subject to change, as determined by Intel. A 128-
KB block is available for storing OEM code (user binary) and custom logos.
Revision 1.0
®
28F320C3B flash part. The flash part is a 4-MB flash ROM with
C78844-002
Functional Architecture
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