Table 1. Specifications, Type 7D8J and 7D8K (continued)
Specification
Description
Processor  This server supports one of the following Intel
® 
processors: 
•  Xeon
® 
E3–23XX
•  Pentium Gold
For a list of supported processors, see 
https://static.lenovo.com/us/en/serverproven/ 
index.shtml
.
Note: 
Xeon
® 
E3–23XX processor without integrated graphics feature does not support the 
KVM redirection functions; GPU is required when such processor is installed. If a 
processor with integrated graphics feature and a GPU are installed in the system, the 
integrated graphics feature and the DisplayPorts will be disabled.
Memory •  Slots: four DIMM slots (two channels, two DIMMs per channel)
•  Minimum capacity: 8 GB
•  Maximum capacity: 64 GB
•  DIMM types: 
–  8GB 1Rx8 3200MT/s ECC UDIMM
–  16GB 2Rx8 3200MT/s ECC UDIMM
Note: Pentium processor supports up to 2666 MT/s.
For more information on memory module installation rules and supported memory 
speed, see 
“Memory module installation rules” on page 44.
Storage expansion Two 3.5-inch drive bays (one for optional), one 2.5-inch drive bay (optional), one ODD 
bay, and one M.2 drive. 
•  Drive bay 1
–  3.5-inch hard-disk drive or solid-state drive
•  Drive bay 2 (Optional)
–  One 2.5-inch hard-disk drive or solid-state drive
•  Drive bay 3 (Optional)
–  One 3.5-inch hard-disk drive or solid-state drive
•  ODD drive bay (Optional)
–  One 9mm slim SATA Optical disk drive
•  M.2 drive (Optional)
–  One 2280 NVMe PCIe standard M.2 module (for booting)
Expansion slots Three PCIe expansion slots are available: 
•  PCIe slot 1: PCI Express 4.0 x16 (FHHL 75W PCIe adapter)
•  PCIe slot 2: PCI Express 3.0 x1 (FHHL, 25W PCIe adapter)
•  PCIe slot 3: PCI Express 3.0 x4 in x16 slot (FHHL, 25W PCIe adapter)
Notes: 
•  Pentium processor supports up to PCI Express 3.0.
•  When installing PCIe x8/x16 adapter to PCIe Slot 3, the PCIe adapter performance 
might be degraded due to the bandwidth of PCIe slot 3 (x4).
•  For PXE boot application (Preboot eXecution Environment), it is recommended to 
install a PXE boot supporting Ethernet adapter for best performance.
One M.2 expansion slot is available 
•  One 2280 NVMe PCIe standard M.2 module (for booting) (Optional)
Chapter 1. Introduction 3