Dell OptiPlex G1 - Manual (Page 94)

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