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QuickSpecs
HP Z640 Workstation
Supported Components
c04400040 — DA – 15080 Worldwide — Version 6 — April 1, 2015
Page 12
NOTE 1
: Tesla K40 is supported with QK5200, QK620 or QK2200.
Not supported with 2 graphics cards.
Not supported with OS WIN7 32-bit.
Not supported with OS WIN8.0.
Memory
CTO
DDR4-2133 ECC Registered DIMMs
Option Kit Part
Number
Support Notes
4GB DDR4-2133 ECC Registered RAM
J9P81AA
1,2
8GB DDR4-2133 ECC Registered RAM
J9P82AA
1,2
16GB DDR4-2133 ECC Registered RAM
J9P83AA
1,2
32GB DDR4-2133 ECC Load Reduced (LR) RAM
J9P84AA
1,2
NOTES:
For details on the supported memory configurations on the HP Z640 Workstation, please refer to the
System Technical Specifications - System Board section of this document.
Each processor supports up to 4 channels of DDR4 memory. To realize full performance at least 1
DIMM must be inserted into each channel.
With single-processor configurations, 4 DIMM slots are available. 4 additional DIMM slots are available
with the 2nd CPU & Memory Module.
The CPUs determine the speed at which the memory is clocked. If an 1866MT/s capable CPU is used in
the system, the maximum speed the memory will run at is 1866MT/s, regardless of the specified speed
of the memory.
ONLY registered and load reduced DDR4 DIMMs are supported.
DDR3 DIMMs ARE NOT SUPPORTED.
Multimedia and Audio Devices
Factory
Configured
Option
Kit
Option
Kit Part
Number
Support
Notes
Integrated Realtek HD ALC221 Audio
Y
N
Optical and Removable Storage
Factory
Configured
Option
Kit
Option
Kit Part
Number Support Notes
HP SlimTray Optical Drives
HP 9.5mm Slim SuperMulti DVD Writer
Y
Y
K3R64AA
HP 9.5mm Slim DVD-ROM Drive
Y
Y
K3R63AA
Note 1
HP 9.5mm Slim BDXL Blu-Ray Writer
Y
Y
K3R65AA
Note 2
HP DX115 Removable Drive Enclosure
HP DX115 Removable HDD Frame/Carrier
N
Y
FZ576AA
Note 3
HP DX115 Removable HDD Carrier
N
Y
NB792AA
Note 4
HP 15-in-1 Media Card Reader
HP 15-in-1 Media Card Reader
Y
Y
G1S79AA