System clocks, Memory, Drives – Dell OptiPlex G1 User Manual
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connectors)
ISA expansion-card connectors:
Low-profile chassis
two (one ISA connector and one PCI connector share an expansion-
card slot)
Midsize chassis
three (one ISA connector and one PCI connector share an expansion-
card slot)
or
two (both PCI connectors share expansion-card slots with ISA
connectors)
Mini tower chassis
four (two ISA connectors share expansion-card slots with PCI
connectors)
Bus speeds
PCI: 33 MHz
ISA: 8.33 MHz
PCI data transfer rate
130 MB/sec (132-MB/sec burst)
Plug and Play BIOS and ISA Bus revision
1.0A
PCI bus specification
complies with PCI specification 2.1
PCI-to-PCI bridging
supported
ISA connector data width
16 bits
PCI connector data width
32 bits (maximum)
System Clocks
Diskette/communications ports
48 MHz from system clock
System clock
66 or 100 MHz
Keyboard controller
48 MHz
Memory
Architecture
64-bit (non-ECC/nonparity), noninterleaved
Wait states
near zero
DIMM sockets
two (gold contacts)
DIMM capacities
32-, 64-, and 128-MB SDRAM ("PC100" 100 MHz, 10 ns)
Minimum RAM
32 MB
Maximum RAM
256 MB
Memory access time
synchronized with system clock
BIOS address
F0000h
Drives
Externally accessible bays:
Low-profile chassis
one 5.25-inch bay for a removable media device; one 3.5-inch bay for a
diskette drive
Midsize chassis
two 5.25-inch bays for removable media devices; one 3.5-inch bay for a
diskette drive
Mini tower chassis
three 5.25-inch bays for removable media devices; one 3.5-inch bay for
a diskette drive
Internally accessible bays:
Low-profile chassis
one 3.5-inch bay for a 1-inch–high hard-disk drive
Midsize chassis
two 3.5-inch bays for either one or two 1-inch–high hard-disk drives, or
one 1-inch-high hard-disk drive and one 1.6-inch–high hard-disk drive
Mini tower chassis
two 3.5-inch bays for either one or two 1-inch-high hard–disk drives, or
one 1-inch-high hard-disk drive and one 1.6-inch–high hard-disk drive