Dell OptiPlex G1, Service Manual

Page: 39 / 144

System Overview 1-29
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ISA expansion-card
connectors:
Low-profile
computers . . . . . . . . . . .
two (one ISA connector and one PCI con-
nector share an expansion-card slot)
Midsize computers . . . . three (one ISA connector and one PCI con-
nector share an expansion-card slot)
or
two (both share expansion-card slots)
Mini tower
computers . . . . . . . . . . .
four (two ISA connectors share expansion-
card slots with PCI connectors)
1,&
NIC. . . . . . . . . . . . . . . . . . . . optional integrated 3Com PCI 3C905B-TX
Wakeup On LAN Ethernet NIC, operating at
10 or 100 Mbps
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Architecture . . . . . . . . . . . . . 64-bit (nonparity), noninterleaved
DIMM sockets . . . . . . . . . . . two (gold contacts)
DIMM capacities . . . . . . . . . 32-, 64-, and 128-MB SDRAM
Minimum RAM . . . . . . . . . . 32 MB
Maximum RAM . . . . . . . . . . 256 MB
L2 cache memory . . . . . . . . 512-KB pipeline-burst, four-way
set-associative, write-back SRAM
BIOS address. . . . . . . . . . . . F0000h
NIC ROM address . . . . . . . . C8000h
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Externally accessible bays:
Low-profile
computers . . . . . . . . . . .
one 3.5-inch bay for a 3.5-inch diskette
drive; one 5.25-inch bay for a removable
media device
Midsize computers . . . . one 3.5-inch bay for a 3.5-inch diskette
drive; two 5.25-inch bays for removable
media devices
Mini tower
computers . . . . . . . . . . .
one 3.5-inch bay for a 3.5-inch diskette
drive; three 5.25-inch bays for removable
media devices
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