System clocks, Memory, Drives – Dell OptiPlex GX1p User Manual
Page 94: Ports

System Clocks
Diskette/communications ports
48 MHz from system clock
System clock
66/100 MHz
Keyboard controller
48 MHz
Memory
Architecture
72-bit (ECC), noninterleaved
Wait states
near 0
DIMM sockets
3 (gold contacts)
DIMM capacities
64-, 128-, and 256-MB ECC SDRAM ("PC100" 100 MHz)
Minimum RAM
128 MB
Maximum RAM
768 MB
Memory access time
synchronized with system clock
BIOS address
F0000h
Drives
Externally accessible bays:
Midsize chassis
(2) 5.25-inch bays for diskette, tape, or CD-ROM drives; (1) 3.5-inch
bay for a diskette drive
Mini tower chassis
(3) 5.25-inch bays for diskette, tape, or CD-ROM drives; (1) 3.5-inch
bay for a diskette drive
Internally accessible bays:
Midsize chassis
(2) 3.5-inch bays: 1 for a 1-inch-high hard-disk drive and 1 for a 1.6-
inch-high hard-disk drive*
Mini tower chassis
(2) 3.5-inch bays: 1 for a 1-inch-high hard-disk drive and 1 for a 1.6-
inch-high hard-disk drive*
* See
Hard-Disk Drive Options
for information on options and restrictions .
Ports
Externally accessible:
Serial (DTE)
(2) 9-pin connectors (16550-compatible)
Parallel
25-hole connector (bidirectional)
Video
15-hole connector
NIC
RJ45 connector
PS/2-style keyboard
6-pin mini-DIN
PS/2-compatible mouse
6-pin mini-DIN
USB
2 USB host connectors
Audio line-in
miniature audio jack
Audio line-out
(amplified source)
miniature audio jack
Microphone
miniature audio jack