Dell Precision X001C Quick Reference Manual page 24

Memory
Memory module connector
Memory configurations
Memory type
Minimum memory
Maximum memory
NOTE:
Dual-channel bandwidth operation requires both memory slots to be populated
and match in size.
NOTE:
The available memory displayed does not reflect the complete maximum
memory installed because some memory is reserved for system files.
Ports and Connectors
Audio
IEEE 1394a
I/O port
I/O slots
Internal expansion slots
24
Specifications
two DIMM slots
1 GB (1 DIMM or 2 DIMMs)
2 GB (1 DIMM or 2 DIMMs)
4 GB (1 DIMM or 2 DIMMs, Microsoft
®
Windows Vista only)
8 GB (2 DIMMS, Windows Vista only)
DDR II 800 MHz (if supported by chipset
and/or processor combinations); non-ECC
memory only.
1 GB (1 DIMM)
8 GB (Windows Vista only)
microphone connector, stereo
headphone/speakers connector
4-pin connector
SD multi-card reader supports SD, SDIO,
SD-HC, Mini-SD (with adapter) MMC,
MMC+, Mini-MMC (with adapter)
one 54-mm Express Card slot
one CardBus/PCMCIA slot
integrated smart-card reader
two Full-Mini-Card slots
one Half-Mini-Card slot
®