Owners Manual

● Citrix Hypervisor
● Microsoft Windows Server with Hyper-V
● Red Hat Enterprise Linux
● SUSE Linux Enterprise Server
● VMware ESXi/vSAN
● CentOS
● Windows Preinstallation Environment (WinPE) 64-bit drivers
For more information, go to www.dell.com/ossupport.
System battery specifications
The PowerEdge C6520 system supports CR 2032 3.0-V lithium coin cell system battery.
Expansion card riser specifications
The PowerEdge C6520 system supports up to four PCI express (PCIe) Gen 4 expansion cards.
Table 5. Expansion card slots supported on the system board
PCIe slot Risers Riser width PCIe slot height PCIe slot length PCIe slot width
Slot 1 Riser 1a x16 PCIe Low profile Half length x8
Slot 1
Riser 1b with support for
SNAP I/O module
x16 PCIe Low profile Half length x8 + x8
Slot 2 Riser 2b x16 PCIe Low profile Half length x8
NOTE: For information on the expansion card installation guidelines, see the system specific Installation and Service
Manual available at https://www.dell.com/poweredgemanuals
Memory specifications
The PowerEdge C6520 system supports the following memory specifications for optimized operation.
Table 6. Memory specifications
DIMM type DIMM rank
DIMM
capacity
Single processor Dual processors
Minimum
system
capacity
Maximum system
capacity
Minimum
system
capacity
Maximum system
capacity
RDIMM
Single rank 8 GB 8 GB 64 GB 16 GB 128 GB
Dual rank
16 GB 16 GB 128 GB 32 GB 256 GB
32 GB 32 GB 256 GB 64 GB 512 GB
64 GB 64 GB 512 GB 128 GB 1 TB
LRDIMM
Quad rank
64 GB 64 GB 512 GB 128 GB 1 TB
128 GB 128 GB 1 TB 256 GB 2 TB
Octa rank 128 GB 128 GB 1 TB 256 GB 2 TB
Table 7. Memory module sockets
Memory module sockets Speed
16, 288-pin 3200 MT/s, 2933 MT/s, 2666 MT/s
6 Technical specifications