Expansion bus specifications
The XC640 Series system supports PCI express (PCIe) generation 3 expansion cards, which are installed on the system, using
expansion card risers. This system supports 1A, 2A, and expansion card risers.
Memory specifications
Table 17. Memory specifications
Memory module
sockets
Architecture Memory capacity Maximum RAM
Twenty four 288-pins 2666 MT/s DDR4 RDIMMs and
LRDIMMs with support for memory
optimized operation
64 GB quad rank (LRDIMMs) LRDIMM: up to 1536 GB
with dual processors
16 GB or 32 GB dual rank
(RDIMMs)
Storage controller specifications
The XC640 Series system supports internal storage controller cards: HBA330, and Boot Optimized Server Storage (BOSS).
Drive specifications
The XC640 Series system supports SAS, SATA, and Nearline SAS hard drives.
Hard drives
The XC640 Series system supports SAS, SATA, Nearline SAS hard drives or SSDs.
Table 18. Supported hard drive options for the XC640 Series system
Number of drives Supported drive options
Ten drive systems Up to ten 2.5 inch, hot swappable SAS, SATA, SAS/SATA SSD, or Nearline
SAS hard drives.
Four drive systems Up to four 3.5 inch, hot swappable hard drives.
Ports and connectors specifications
The XC640 Series system supports USB ports, NIC ports, VGA ports, serial connector, and an IDSDM/vFlash card that supports
an optional flash memory card and one internal dual SD module.
USB ports
The XC640 Series system supports:
● USB 2.0-compliant port on the front panel
● Micro USB 2.0-compliant port in the front panel
NOTE:
The micro USB 2.0-compliant port on the front panel can only be used as an iDRAC Direct or a management
port.
● USB 3.0-compliant ports on the back panel
● Internal USB 3.0-compliant port
Technical specifications
21
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