Mainboard User’s Manual
10
Microprocessor
2.4. Microprocessor
The mainboard is designed to operate with the following processors:
Processor Type
Speed
FSB
Intel Celeron
Intel PIII
566-800 MHz
500-850 MHz
533 MHz-1.26GHz
66 MHz
100 MHz
133 MHz
VIA Cyrix C3
800+ MHz
133 MHz
An onboard switching voltage regulator provides the required 1.05 to
1.825 volts for the processor. The processor sends five VID (Voltage
Identification) signals to the switching voltage regulator. The switch-
ing regulator generates the correct voltage for the processor.
2.5. CPU Packaging
PGA370 CPUs are packaged in a FC-PGA, FC-PGA2 configuration.
2.6. Chipset
The P6F132/133 supports the Intel 815E/815EP chipset. The
815E/815EP chipset is designed for desktops and workstations that
provide internal or external graphics, and provides ATA-100, 4x-
AGP and SDRAM support.
The 82801BA I/O controller hub makes a direct connection between
the graphics system, the IDE controller, and the PCI bus. It uses ac-
celerated hub architecture to effectively double the bandwidth
between these components enabling more lifelike audio and video.
The 82801BA I/O controller hub includes an integrated audio-codec
controller that lets the processor more effectively decode sound gen-
erated by the integrated audio system.
The 82802 Firmware Hub allows the system and video BIOS to be
stored (eliminating the need for non-volatile CMOS memory) for
faster execution, and provides a random number generator to enable
strong encryption routines.
