S UPER P3TDDR User's Manual Pentium III FCPGA/PPGA CPUs 133/100/66 MHz Host Bus VT8653T DDR Vlink Host North 552BGA 266 MHz Memory Memory Bus 3D Graphics Controller AGP Bus Clock Buffer GCLK MCLK HCLK/PCLK Clock Generator SMBus PCI Slots PCI Bus VT8233 Vlink Power Plane & Peripheral Control ATA 33/66/100 MII/LAN 6x USB ACPI Events LPC LPC Figure 1-3. VIA 266T Chipset: System Block Diagram 1-6