Dell Precision 400 Service Manual (.pdf) - Page 31

Technical Specifications, Table 1-5.

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Technical Specifications Table 1-5. Technical Specifications Microprocessor Microprocessor type Intel Pentium II microprocessor Microprocessor speed 266 MHz internally/66 MHz externally 300 MHz internally/66 MHz externally First-level cache 32 KB Second-level cache 512-KB pipelined burst, four-way set- associative, write-back ECC SRAM Math coprocessor internal to the microprocessor System Information System chip set Intel 82440FX PCIset Data bus width 64 bits Address bus width 32 bits DMA channels seven Interrupt levels 15 Flash EPROM 1 Mb Expansion Bus Bus types PCI and ISA Bus speed PCI: 33.3 MHz ISA: 8.33 MHz PCI expansion-card connectors five (two PCI connectors share card-slot open- ings with the two ISA connectors) ISA expansion-card connectors two (both ISA connectors share card-slot openings with two of the PCI connectors) ISA expansion-card connector size 98 pins ISA expansion-card connector data width (maximum 16 bits PCI expansion-card connector size 120 pins PCI expansion-card connector data width (maximum 32 bits System Overview 1-19

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System Overview
1-19
T
echnical Specifications
Table 1-5.
Technical Specifications
Microprocessor
Microprocessor type . . . . . . . . . Intel Pentium II microprocessor
Microprocessor speed . . . . . . . . 266 MHz internally/66 MHz externally
300 MHz internally/66 MHz externally
First-level cache . . . . . . . . . . . . 32 KB
Second-level cache . . . . . . . . . . 512-KB pipelined burst, four-way set-
associative, write-back ECC SRAM
Math coprocessor . . . . . . . . . . . internal to the microprocessor
System Information
System chip set . . . . . . . . . . . . . Intel 82440FX PCIset
Data bus width . . . . . . . . . . . . .64 bits
Address bus width. . . . . . . . . . . 32 bits
DMA channels . . . . . . . . . . . . . seven
Interrupt levels . . . . . . . . . . . . . 15
Flash EPROM . . . . . . . . . . . . . . 1 Mb
Expansion Bus
Bus types. . . . . . . . . . . . . . . . . . PCI and ISA
Bus speed . . . . . . . . . . . . . . . . . PCI: 33.3 MHz
ISA: 8.33 MHz
PCI expansion-card
connectors . . . . . . . . . . . . . . . . . five (two PCI connectors share card-slot open-
ings with the two ISA connectors)
ISA expansion-card
connectors . . . . . . . . . . . . . . . . . two (both ISA connectors share card-slot
openings with two of the PCI connectors)
ISA expansion-card
connector size . . . . . . . . . . . . . . 98 pins
ISA expansion-card connector
data width (maximum) . . . . . . . 16 bits
PCI expansion-card
connector size . . . . . . . . . . . . . . 120 pins
PCI expansion-card connector
data width (maximum) . . . . . . . 32 bits