PC Concepts SHG2 DP - Manual (Page 34)

Baseboard PCI I/O Subsystem Intel® SHG2 DP Server Board Technical Product Specification
Intel Order Number C11343-001 Revision 1.0 22
• Integrated IEEE 802.3 10Base-T and 100Base-TX compatible PHY
• IEEE 820.3u auto-negotiation support
• Chained memory structure similar to the 82559, 82558, 82557, and 82596
• Full duplex support at both 10 Mbps and 100 Mbps operation
• Low power +3.3 V device
3.5.3.1 NIC Connector and Status LEDs
The 82550PM drives status LEDs on the NIC to indicate link/activity on the LAN and operational
speed, 10- or 100-Mbps. The green LED indicates network connection when on, and TX/RX
activity when blinking. The other green LED indicates 100-Mbps operation when it is lit and 10-
Mbps operation when it is OFF.
3.5.4 Video Controller
The Intel SHG2 server board provides an ATI Rage XL PCI graphics accelerator, along with 8
MB of video, SDRAM, and support circuitry for an embedded super video graphics array
(SVGA) video subsystem. The ATI Rage XL chip contains a SVGA video controller, clock
generator, 2D and 3D engine, and RAMDAC in a 272-pin PBGA. One 2Mx32 SDRAM chip
provides 8 MB of video memory.
The SVGA subsystem supports a variety of modes, up to 1600 x 1200 resolution in 8/16/24/32
bpp modes under 2D, and up to 1024 x 768 resolution in 8/16/24/32 bpp modes under 3D. It
also supports both CRT and LCD monitors up to 100 Hz vertical refresh rate.
The SHG2 server board provides a standard 15-pin video graphics array (VGA) connector, and
supports disabling of the onboard video through the BIOS Setup menu or when a plug-in video
card is installed in any of the PCI slots.
3.5.4.1 Video Modes
The ATI Rage XL chip supports all standard IBM* VGA modes. Table 16 shows the 2D/3D
modes supported for both CRT and LCD. The table also specifies the minimum memory
requirement for various display resolution, refresh rates, and color depths.
Table 16. Standard VGA Modes
SHG2 2D Video Mode Support 2D Mode Refresh Rate (Hz)
8 bpp 16 bpp 24 bpp 32 bpp
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 Supported Supported Supported Supported
1280x1024 70, 72 Supported – Supported Supported
1600x1200 60, 66 Supported Supported Supported Supported
1600x1200 76, 85 Supported Supported Supported –
3D Mode Refresh Rate (Hz) SHG2 3D Video Mode Support with Z Buffer Enabled