HP Z440 Technical White Paper

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Technical white paper | HP Z440 Workstation
Performance considerations
Power settings
The default “Balanced” and “Power Saver” plans in Windows Power Options may result in power management settings
that may adversely aect performance of your applications. If the workstation is being used for a high demand
application, consider choosing the “High performance” power plan or choose custom settings that better t your use
model.
SSDs used in RAID congurations and TRIM support
TRIM keeps track of les that have been deleted but not erased on the drive to improve performance and help extend the
life of the SSD. As the SSD is used, the controller within the SSD distributes data across the available FLASH on the SSD
until all FLASH is used. After the FLASH has been used up, a block erase is required before subsequent writes can occur.
The TRIM command normally frees up memory prior to being needed for the next write. If the TRIM commands are not
sent to the drive and no unerased FLASH is available for writing, the SSD controller must erase a block of memory prior to
writing. This can slow performance in applications that perform a lot of le write and le delete operations. One example
is in compiling code where the compiler generates many intermediate les that then get deleted.
The table below shows which RAID arrays support TRIM:
Controller TRIM supported TRIM not supported
SATA 0, 1
sSATA 0, 1, 10 5
Storage caching options
HP Workstations ship with default storage cache settings that balance performance with data protection. The balance of
performance and protection can be adjusted by changing one or more of these settings.
Create a backup of your data before attempting to change any storage related settings.
Windows Write-caching policy (Disk Properties in Disk Manager)
Write caching on the device:
DEFAULT: Enabled
Improves performance by enabling write caching on the disk; however, a loss of power may result in loss of data that
has not been committed to the storage media.
Windows write-cache buer ushing:
DEFAULT: Enabled
When enabled, Windows will periodically instruct the storage device to commit data in the devices cache to the non-
volatile storage media. These periodic commands result in decreased overall system performance.
Note: If Windows write-cache buer ushing is enabled, Intel® RSTe write-back cache is disabled. To enable write-back
cache on volumes, you must disable Windows write-cache buer ushing.
A user can choose to disable Windows write-cache buer ushing to restore system performance, allowing the Intel®
RSTe driver to handle all write-cache buer ushing.
Intel® RSTe write-back cache [for RAID volumes] (Intel RSTe GUI, Volume Properties)
DEFAULT: Disabled
When enabled the read and write performance of a RAID or recovery volume is improved. In write-back cache mode,
the RAID controller acknowledges write I/O requests immediately after the data loads into the controller cache. The
application can continue working without waiting for the data to be physically written to the hard drives.
Enabling Intel® RSTe write-back cache will enable Write caching on the device if not already enabled and will disable
Windows write-cache buer ushing.

HP Z440 Specifications

General

Tcase	66.2 °C
Bus type	QPI
Stepping	R2
FSB Parity	No
Processor cache	10 MB
Processor cores	4
Processor model	E5-1620V3
System bus rate	0 GT/s
Processor series	Intel Xeon E5-1600 v3
Processor socket	LGA 2011-v3
Processor threads	8
Processor codename	Haswell
Number of QPI links	0
Processor frequency	3.5 GHz
Processor cache type	Smart Cache
Processor lithography	22 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	3.0
Processor boost frequency	3.6 GHz
Processor operating modes	64-bit
ECC supported by processor	Yes
PCI Express configurations	1x4, 1x8, 1x16
Thermal Design Power (TDP)	140 W
Number of processors installed	1
Maximum number of PCI Express lanes	40
Memory types supported by processor	DDR4-SDRAM
Memory clock speeds supported by processor	1333, 1600, 1866, 2133 MHz
Memory bandwidth supported by processor (max)	68 GB/s
Maximum internal memory supported by processor	768 GB
Memory slots	8x DIMM
Internal memory	16 GB
Memory channels	Quad-channel
Memory clock speed	2133 MHz
Maximum internal memory	128 GB
Memory layout (slots x size)	2 x 8 GB
SSD capacity	The Solid State Drive's storage capacity in Gigabytes.
SSD interface	PCI Express
Storage media	SSD
Optical drive type	DVD Super Multi
Total storage capacity	256 GB
BD interface type	SATA
Discrete graphics card model	Not available
Recovery operating system	Windows 8.1 Pro
Operating system installed	Windows 7 Professional
Cabling technology	10/100/1000Base-T(X)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
PS/2 ports quantity	2
USB 2.0 ports quantity	5
Chassis type	Mini Tower
Product color	Black
Country of origin	China
Audio system	HD
Product type	Workstation
Motherboard chipset	Intel® C612
Scalability	1S
Processor code	SR20P
Processor ARK ID	82763
Intel TSX-NI version	0.00
Processor package size	52.5 x 45.0 mm
Supported instruction sets	AVX 2.0
Intel Identity Protection Technology version	1.00
Intel® Small Business Advantage (Intel® SBA)	-
Power supply	700 W
Sustainability certificates	ENERGY STAR

Weight and Dimensions

Depth	445 mm
Width	169 mm
Height	432 mm
Weight	11000 g