Major ICs OmniBook 4150B: CPU: Intel Mobile Pentium II. South Bridge: PIIX4M. Video: ATI Mobility-M or -M1. Audio: ESS ES1978 Maestro-2E and ESS ES1921. CardBus: TI PCI 1225. Keyboard controller: National PC87570. Super I/O: SMC 869. OmniBook 4150†: CPU: Intel Mobile Pentium II. South Bridge: PIIX4E. Video: NeoMagic MagicGraph NM2200 (NMG5). Audio: NeoMagic MagicGraph NM2200 (NMG5) and NeoMagic Audio MNA2. CardBus: TI PCI1220A. Keyboard controller: National PC87570. Super I/O: SMC 769. OmniBook 4100: CPU: Intel Mobile Pentium or Pentium II. South Bridge: PIIX4E. Video: NeoMagic MagicGraph NM2160 (NMG4). Audio: Crystal CS4237B. CardBus: TI PCI1250A. Keyboard controller: National PC87570.
Super I/O: SMC 769. † Models called 4150† in this manual have no marking in the serial number, whereas models called 4150B have 4150 B after the serial number. HP OmniBook 4100/4150 Product Information 1-11