Dell OptiPlex NX1 Service Manual - Page 45
Intel Pentium II microprocessor with MMX
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z Microprocessor type . . . . . . Microprocessor speed . . . . . External system clock . . . . . Internal cache Math coprocessor Intel Pentium II microprocessor with MMX technology 266, 333, 350, or 400 MHz 66/100 MHz 32-KB (16-KB data cache and 16-KB instruction cache) internal to the microprocessor System chip set Data bus width Address bus width DMA channels Interrupt levels Flash EPROM (BIOS Intel 440BX PIIX4e chip set 64 bits 32 bits seven 15 2 Mb Bus types Bus speeds PCI expansion-card connectors: Low-profile computers Midsize computers . . . . Mini tower computers OptiPlex NX1 computers PCI and ISA (PCI bus complies with PCI Specification 2.1) PCI: 33 MHz; ISA: 8.33 MHz two (one PCI connector and one ISA connector share an expansion-card slot) three (one PCI connector and one ISA connector share an expansion-card slot) or five (two share expansion-card slots) five (two PCI connectors share expansioncard slots with ISA connectors) one System Overview 1-33