Server Board Features 17
Table 3. Video Modes (continued)
1600x1200 60, 66 Supported Supported Supported Supported
1600x1200 76, 85 Supported Supported Supported –
3D Mode Refresh Rate (Hz) S875WP1-E 3D Video Mode Support with Z Buffer Enabled
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 – –
1600x1200 60,66,76,85 Supported – – –
Video Memory Interface
The memory controller subsystem of the Rage XL arbitrates requests from direct memory interface,
the VGA graphics controller, the drawing coprocessor, the display controller, the video scalar, and
hardware cursor. Requests are serviced in a manner that ensures display integrity and maximum
CPU/coprocessor drawing performance.
The server board S875WP1-E supports an 8 MB (512Kx32bitx4 Banks) SDRAM device for video
memory.
Super I/O
The SMSC LPC47M172 I/O Controller provides the following features:
• Low pin count (LPC) interface
• 3.3 V operation
• One serial port and one serial port header
• One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP)
support
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• PS/2-style mouse and keyboard interfaces
• Interface for one 1.2 MB, 1.44 MB, or 2.88 MB diskette drive
• Intelligent power management, including a programmable wake up event interface
• PCI power management support
The BIOS Setup program provides configuration options for the I/O controller.