Owners Manual

Chassis weight
Table 7. Chassis weight of the XC6420 Series sleds
System Maximum weight (with all the sleds and drives)
24 x 2.5-inch hard drive systems 41.46 Kg (91.40 lb)
No backplane systems 34.56 Kg (76.19 lb)
Processor specications
The XC6420 Series sled supports up to two Intel Xeon Skylake product family processors in each of the four independent sleds. Each
processor supports up to 28 cores.
System battery
The XC6420 Series sled uses a CR 2032 3V replaceable lithium coin cell battery.
Expansion bus specications
The XC6420 Series sled supports four Generation 3 capable PCIe slots. Two slots are populated with the base conguration.
Table 8. Expansion bus
specications
PCIe Slots Description Form factor
x8 Mezzanine PCIe riser Slot 1: x8 PCIe Gen3 from CPU 1 Custom form factor
x8 + x8 OCP Mezzanine riser
Slot 2: x8 PCIe Gen3 from CPU 1
Standard Open Compute Project (OCP)
form factor
Slot 3: x8 PCIe Gen3 from CPU 1
x16 PCIe main riser Slot 4: x16 PCIe Gen3 CPU 1 Standard Low Prole PCIe form factor
x16 buried PCIe riser Slot 5: x16 PCIe Gen3 from CPU 2 Custom form factor
NOTE: M.2 SATA riser is supported
on the buried riser.
Memory specications
The XC6420 Series sled supports DDR4 registered DIMMs (RDIMMs) and Load Reduced DIMMS (LRDIMMs) including 3D XPoint.
Table 9. Memory
specications
Memory module
sockets
Architecture Memory capacity and
ranking
Minimum RAM Maximum RAM
Sixteen 288-pin 2666 MT/s DDR4 RDIMMs
and LRDIMMS with support
for advanced ECC or memory
optimized operation
• Single rank - 8 GB
• Dual rank - 16 GB
• Dual rank - 64 GB
• 8 GB with a single
processor
• 16 GB with dual
processor
• 512 GB with a single
processor
• 1024 GB with dual
processor
14 Technical specications