User guide

HP Z820 Workstation specifications
Processor
technology
Intel Series C602 chipset:
Support for the Intel Xeon Processor E5-2600 Series, including processors up to 150 W
Integrated 4-channel memory controller
Microarchitecture improvements
Large L3 cache for superior performance
Intel QuickPath Interconnect (QPI) connects processors and I/O controller with speeds up to 8.0
GT/s
NOTE: HP Liquid Cooling option is available for all Z820 processors.
Power supply
850 W Silver, 88% efficient, wide-ranging, active Power Factor Correction, two auxiliary
dongles on two separate 12V rail, ERP 0.5W, Built-in-Self Test (BIST)
1125 W Gold, 90% efficient, wide-ranging, active Power Factor Correction, three auxiliary
dongles on three separate 12V rails, ERP 0.5W, Built-in-Self Test (BIST)
China’s Energy Conservation Program (CECP) configurations
European Union ErP LOT6 2013 power limit of 0.5 W in off mode
Memory
technology
Dual in-line memory modules (DIMMs) based on DDR3 1600MHz technology
Error checking and correcting (ECC)-protected
Eight direct-attach memory channels (four per CPU) enable low-latency access and fast data
transfer for improved performance
Configurations with one CPU have eight DIMM slots; a second CPU adds eight more DIMM slots
With one processor, up to 256 GB system memory (32 GB DIMMs)
With second processor, up to 512 GB system memory (32 GB DIMMs)
1600 MHz 2, 4 GB ECC unbuffered DIMM
1600 MHz 4, 8, 16 GB ECC registered DIMM
1333 MHz 32 GB ECC Load Reducing DIMM (available second half of 2012)
NOTE: Do not mix any of the different types (unbuffered, registered, and load reducing DIMMs) of
memory. The system will not boot and will produce a memory error.
NOTE: For maximum performance, on workstations with two CPUs, install the same number of
DIMMs per CPU and install them in pairs of the same size
NOTE: Distribute DIMMs across all memory channels for optimal performance
Graphics cards
PCIe Gen3 (PCIe3) bus speeds; can support three PCIe Gen3 graphics cards in PCIe3 x16 slots
Up to one 160 W or two 75 W graphics cards with 850 W power supply
Up to two 300 W or three 225 W graphics cards with optional 1125 W power supply (other
configuration restrictions may be required)
HP Z820 Workstation components
35