Dell Precision 400 Service Manual (.pdf) - Page 32

Table 1-5., Technical Specifications, Architecture .. 64-bit, noninterleaved EDO ECC

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Table 1-5. Technical Specifications (continued) System Clocks System clock 66 MHz (matches external processor speed) Diskette/communications ports 24 MHz from the system clock Memory Architecture 64-bit, noninterleaved EDO ECC DIMM sockets four DIMM capacities 16, 32, 64, and 128 MB Standard RAM 64 MB Maximum RAM 512 MB BIOS address F000:0000h-F0000:FFFFh Drives Externally accessible bays: Midsize computer one 3.5-inch bay dedicated to a 3.5-inch diskette drive; two 5.25-inch bays for half-height diskette drives, tape drives, or CD-ROM drives Mini tower computer. . . . . . one 3.5-inch bay dedicated to a 3.5-inch diskette drive; three 5.25-inch bays for halfheight diskette drives, tape drives, or CD-ROM drives Internally accessible bays: Midsize computer one 1.6-inch-high bay and one 1-inch-high bay for EIDE or SCSI hard-disk drives Mini tower computer . . . . . one 1.6-inch-high bay and one 1-inch-high bay for EIDE or SCSI hard-disk drives; one additional 1-inch-high bay available for a third SCSI hard-disk drive 1-20 Dell WorkStation 400 Systems Service Manual

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1-20
Dell WorkStation 400 Systems Service Manual
System Clocks
System clock. . . . . . . . . . . . . . . 66 MHz (matches external processor speed)
Diskette/communications
ports . . . . . . . . . . . . . . . . . . . . . 24 MHz from the system clock
Memory
Architecture . . . . . . . . . . . . . . . 64-bit, noninterleaved EDO ECC
DIMM sockets . . . . . . . . . . . . . four
DIMM capacities . . . . . . . . . . . 16, 32, 64, and 128 MB
Standard RAM . . . . . . . . . . . . . 64 MB
Maximum RAM . . . . . . . . . . . . 512 MB
BIOS address . . . . . . . . . . . . . . F000:0000h–F0000:FFFFh
Drives
Externally accessible bays:
Midsize computer. . . . . . . . one 3.5-inch bay dedicated to a 3.5-inch dis-
kette drive; two 5.25-inch bays for half-height
diskette drives, tape drives, or CD-ROM
drives
Mini tower computer. . . . . . one 3.5-inch bay dedicated to a 3.5-inch
diskette drive; three 5.25-inch bays for half-
height diskette drives, tape drives, or
CD-ROM drives
Internally accessible bays:
Midsize computer. . . . . . . . one 1.6-inch-high bay and one 1-inch-high bay
for EIDE or SCSI hard-disk drives
Mini tower computer . . . . . one 1.6-inch-high bay and one 1-inch-high bay
for EIDE or SCSI hard-disk drives; one addi-
tional 1-inch-high bay available for a third
SCSI hard-disk drive
Table 1-5.
Technical Specifications
(continued)