HP Vectra VEi8 HP Vectra VEi7, VEi8 & VLi8, Technical Reference Manual (V - Page 11
Chip Sets, The Intel 440ZX AGPset (VEi 8, VLi 8 and VLi 8SF PCs) - ram
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Core Components and Technologies Chip Sets Chip Sets The Intel 440ZX AGPset (VEi 8, VLi 8 and VLi 8SF PCs) The Intel 440ZX AGPset is used in conjunction with either a Socket 370 Celeron, a Pentium II or a Pentium III processor depending on the model of PC. For information on the various configurations available, refer to the Technical Reference Manual - Product Line Overview. The 440ZX chip set is derived from and has the same benchmarks as the 440BX. The only differences in features are: • 512MB of RAM supported instead of 1GB on the 440BX • One less PCI master • No ECC memory support. The Intel 440ZX AGPset is comprised of two chips: the 440ZX PAC (PCI AGP Controller) chip and the PIIX4E chip. • The PAC chip (440ZX) is the bridge between four buses: the Processor Local Bus (GTL+, also referred to as the Host, or Front Side Bus), the main memory bus, the PCI bus and the AGP (graphics) bus. • The PIIX4E chip is the bridge between three buses: the PCI bus, the SM bus and the ISA bus. In addition, it contains the IDE controller, USB controller and Power Management logic. The Intel 440ZX AGPset is contained in a Ball Grid Array (BGA) package, giving a smaller footprint and higher reliability. The two chips that make up the Intel 440ZX AGPset are explained below: Intel 440ZX PAC Chip The 440ZX PAC chip integrates a Host-to-PCI bridge, optimized DRAM controller and data path, and an Accelerated Graphics Port (AGP) interface. AGP is a high performance, component level interconnect, targeted at 3D graphics applications. 11