User`s manual

Chapter 1: Introduction
1-13
1-2 Chipset Overview
The 440GX chipset, developed by Intel, is the ultimate processor platform tar-
geted for 3D graphics and multimedia applications. Along with System-to-PCI
bridge integrated with optimized DRAM controller and data path, the chipset
introduces the Accelerated Graphics Port (AGP) interface. AGP is a high per-
formance, component level interconnect targeted at 3D applications and is based
on a set of performance enhancements to PCI. The I/O subsystem portion of the
440GX platform is based on the PIIX4, a highly integrated version of Intel's PCI-
to-ISA bridge family.
The PCI/AGP and system bus interface controller (82443GX) supports up to two
Pentium II/III processors. It provides an optimized 72-bit DRAM interface (64-bit
data plus ECC). This interface supports 3.3V DRAM technology. The controller
provides the interface to a PCI bus operating at 33 MHz. This interface imple-
mentation is compliant with the PCI Rev 2.1 Specification. The AGP interface
is based on AGP Specification Rev 1.0. It can support data transfer rates of up
to 133 MHz (532 MB/s).
1-3 PC Health Monitoring
This section describes the PC health monitoring features of the SUPER P6DGS,
P6DGE, P6DGU and P6SGU. All have an onboard System Hardware Monitor
chip that supports PC health monitoring.
Seven Onboard Voltage Monitors for the CPU Core(s),
CPU I/O, +3.3V,
±±
±±
±5V, and
±±
±±
±12V
The onboard voltage monitor will scan the seven monitored voltages continuously.
Once a voltage becomes unstable, it will report a warning or an error message
onscreen. Users can adjust the threshold of the monitored voltage to determine
the sensitivity of the voltage monitor.
Three-Fan Status Monitor with Firmware/Software On/Off
Control
The PC health monitor can check the RPM status of the cooling fans. The
onboard 3-pin CPU fan is controlled by the ACPI BIOS and the ACPI enabled
operating system. The thermal fans are controlled by the overheat detection
logic.