Intel Server Board SE7501HG2 Product Guide 
18
3D Mode  Refresh Rate (Hz)  SE7501HG2 3D Mode Video Support with Z Buffer Disabled 
640x480  60, 72, 75, 90, 100  Supported  Supported  Supported  Supported 
800x600  60, 70, 75, 90, 100  Supported  Supported  Supported  Supported 
1024x768  60, 72, 75, 90, 100  Supported  Supported  Supported  Supported 
1280x1024  43, 60, 70, 72  Supported  Supported  Supported  – 
1600x1200  60, 66, 76, 85  Supported  Supported  –  – 
SCSI Controller 
The embedded Adaptec AIC-7902 dual function SCSI controller provides Ultra320 (LVDS), 
(Ultra 4), and Ultra wide (SE) SCSI interfaces as two independent PCI functions. 
The Intel SE7501HG2 baseboard provides active terminators, termination voltage, resetable fuse, 
and protection diode for both SCSI channels. 
IDE Controller 
The system includes a dual-channel enhanced IDE 32-bit interface controller for intelligent disk 
drives with disk controller electronics onboard.  The controller has both primary and secondary 
connectors on the system board, each of which supports a master and a slave device. 
The device supports: 
•  PIO, ATA-100 Synchronous DMA, and bus master IDE transfer modes 
•  Ultra DMA 33/66/100 synchronous DMA transfers 
•  Master/slave IDE modes 
•  Up to four devices 
USB Interface 
The server board SE7501HG2 provides three external USB connectors on the rear I/O panel.  
Revision 1.1 of the USB Specification defines the external connectors.  An additional USB 
controller is supported internally through a 10-pin header on the server board that can be cabled to 
two additional USB ports on the front panel board.  All five ports function identically and with the 
same bandwidth.