The SGI Visual Workstations (models 320 and 540) are based around the Cobalt, Lithium, and Arsenic ASICs. The Cobalt ASIC is the main system ASIC which interfaces the 1-4 IA32 cpus, the memory system, and the I/O system in the Lithium ASIC. The Cobalt ASIC also contains the 3D gfx rendering engine which renders to main system memory -- part of which is used as the frame buffer which is DMA'ed to a video connector using the Arsenic ASIC. A PIIX4 chip and NS87307 are used to provide legacy device support (IDE, serial, floppy, and parallel). The Visual Workstation chipset largely conforms to the PC architecture with some notable exceptions such as interrupt handling.Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.