Dell OptiPlex Gxi - Manual (Page 122)

mini tower chassis:
ISA expansion-card connectors 4 full-length; 2 connectors share a card-slot opening with 2 PCI
expansion-card connectors.
PCI expansion-card connectors 5 full-length; two connectors share a card-slot opening with 2 ISA
expansion-card connectors.
ISA bus speed 8.33 MHz
PCI bus speed 33 MHz
Plug and Play revision 1.0a
PCI bus specification complies with PCI specification 2.1
PCI expansion-card connector size 120 pins
PCI expansion-card connector data width 32 bits (maximum)
System Clocks
Diskette/communications ports 24 MHz from the system clock
System clock 66 MHz (matches external processor frequency)
Memory
Architecture 64-bit (non-ECC) or 72-bit (ECC), noninterleaved
Wait states near 0
DIMM sockets 4, gold contacts
DIMM capacities 8- 16-, and 32-MB nonparity; 8-, 16-, 32-, 64-, and 128-MB
parity/ECC
Minimum RAM 16 MB
Maximum RAM 512 MB
External cache (optional) 256- or 512-KB pipelined-burst, direct-mapped, write-back SRAM
BIOS address F0000h
DIMMs buffered or unbuffered unbuffered
Supports 2 or 4 clock cycles not applicable
DIMM voltage 3.3 V
Drives
Low-profile chassis:
Externally accessible bays (1) 5.25-inch bay;
(1) 3.5-inch diskette-drive bay
Internally accessible bays (1) 3.5-inch bay for a 1-inch-high hard-disk drive
Midsize chassis:
Externally accessible bays (2) 5.25-inch bays;
(1) 3.5-inch diskette-drive bay
Internally accessible bays (1) 3.5-inch bay for a 1-inch-high hard-disk drive;
(1) 3.5-inch bay for a 1.6-inch-high hard-disk drive
Mini tower chassis:
Externally accessible bays (3) 5.25-inch bays;
(1) 3.5-inch diskette-drive bay
Internally accessible bays (1) 3.5-inch bay for a 1-inch-high hard-disk drive;
(1) 3.5-inch bay for a 1.6-inch-high hard-disk drive
NOTE: OptiPlex GXi systems are equipped with SMART (Self-Monitoring Analysis Reporting Tool) technology.
SMART technology supports early detection of imminent hard-disk drive failure.