Dell OptiPlex E1 - Manual (Page 121)

Technical Specifications A-1
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Microprocessor type . . . . . . . . . . . . . . . . Intel Celeron microprocessor that runs at
266 or 300 MHz internally/66 MHz exter-
nally. Design provides for future
Dell-supported upgrades. A slower
compatibility speed can be set through the
System Setup program.
Internal cache . . . . . . . . . . . . . . . . . . . . . 32-KB first-level (16-KB data cache; 16-KB
instruction cache)
Math coprocessor . . . . . . . . . . . . . . . . . . internal to the microprocessor
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System chip set . . . . . . . . . . . . . . . . . . . . Intel 82440EX PCI/AGP
PIIX4E 82371EB
Data bus width . . . . . . . . . . . . . . . . . . . . 64 bits
Address bus width. . . . . . . . . . . . . . . . . . 32 bits
DMA channels . . . . . . . . . . . . . . . . . . . . . eight
Interrupt levels . . . . . . . . . . . . . . . . . . . . . 15
System BIOS chip . . . . . . . . . . . . . . . . . . 2 Mb
System clock . . . . . . . . . . . . . . . . . . . . . . 66 MHz (matches external bus speed)
NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the
online System User’s Guide.