Features Benefits 133 MHz Front Side Bus Capability Supports 100 MHz and 133 MHz system bus for single and dual processor configurations Significantly increases bandwidth available for multiprocessor Workstations PC133 SDRAM Technology Superior memory performance in terms of bandwidth and lower access latency Increases flexibility of system design for memory configurations Proven technology with low cost structure Workstation Optimized Memory Technology  (Up to 12-GBytes) High Bandwidth 2-way interleaved architecture achieves up to 2.1 GBytes/s Advanced ECC algorithms that maintain system data integrity Supports a large capacity of memory up to 12-GBytes Supports wide range of memory DIMMs including 64, 128, 256, 512-MByte, and 1, 2-GByte Supports 6-DIMM slots Advanced "Inter Module Bus" (IMB) Technology Supports 1 GByte/s operation and low latency IO transactions on full duplex, point to point, source synchronous bus. Defined Interconnect from North Bridge to remote PCI IO Bridges Advanced 64-bit PCI Technology Two full independent 64-bit PCI Buses Maximizes IO bandwidth for the next generation of 64-bit PCI cards Supports up to 2 full 64-bit/66 MHz PCI busses Supports up to 5 64-bit/33 MHz PCI busses Advanced IO Caching Technology Increases sustainable PCI bus bandwidth by off loading system resources Reduces Front Side bus snoop traffic for enhanced multiprocessing performance AGP 4X Technology Allows the highest graphics performance currently available Significant increase in bandwidth (2x) to support 3D graphics Scalable Architecture Increases flexibility of system design for processor, memory, and PCI configurations Strong architectural foundation that enables a smooth transition to the next generation of server technology (i.e. PCI-X, DDR) Full Peer-to-Peer Support Allows full peer-to-peer transactions between PCI busses Increases options for Intelligent IO and Server Management cards Integrated IOAPIC Removes the need for a separate IOAPIC chip BOM cost savings, additional board real estate, and increased design flexibility ATA66 Enhances HDD access for faster reads and writes 4 USB Ports Provides the end user with more options to connect peripherals ServerSet™ III HE-SL Components: Package    ( Silicon Supplier  NEC ) NB6576 North Bridge 3.0HE  Tape Ball Grid Array (TBGA) SB7440 South Bridge  Plastic Ball Grid Array (PBGA) IB6555 PCI IO Bridge 352 Plastic Ball Grid Array (PBGA)