S UPER S2QR6/S2QE6 User's Manual Introduction Pentium III/II Xeon CPU Pentium III/II Xeon CPU Pentium III/II Xeon CPU Pentium III/II Xeon CPU 100 MHz Host Bus 64-bit, 66/33 MHz PCI MADP 4GB Reg. ECC PCI Bridge North (Host) Bridge MADP 4GB Reg. ECC (CNB20HE) 64-bit, 33 MHz PCI MADP 4GB Reg. ECC South Bridge (OSB4) 32-bit, 33 MHz PCI MADP 4GB Reg. ECC MEC UDMA/33 4Mb Flash ROM BIOS USB IDE Ports Ports Figure 1-5. ServerWorks HE Classic Chipset: System Block Diagram NOTE: The 32-bit PCI slots are included only on the S2QR6. See the following page for the actual specifica- tions of each motherboard. 1-10