HP WM640ET

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HP 420 reviews

Brand: HP More HP desktop pcs reviews →

HP 420
Pictured: WM640ET · Image supplied through Icecat.
tbd

COR Score

Available after 3 critic reviews

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Compare HP 420 reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.

Manufacturer codeWM640ET

The product, explained

About the HP 420

HP WM640ET is listed in the pcs/workstations category. The recorded specifications include processor family: Intel® Xeon® E5 Family; internal memory: 4 GB; total storage capacity: 500 GB; operating system installed: Windows 7 Professional. This entry covers manufacturer code WM640ET. Specifications relate to this exact source record; other editions or packages may differ.

This configuration lists 4 GB of memory and 500 GB of storage. Memory supports active applications; storage holds software and files. Check upgradeability separately, because a capacity figure does not establish whether either component can be replaced.

Processor family
Intel® Xeon® E5 Family
Processor model
E5-1603
Memory (RAM)
4 GB
Total storage capacity
500 GB
Storage media
HDD
Operating system installed
Windows 7 Professional

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Before choosing the HP 420

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Independent perspectives

Expert reviews 0

How we calculate the score →

Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.

No scored critic reviews have been imported for this exact product yet. It remains unrated.

Independent reviews, made comparable

What does the COR Score mean?

One consistent scale makes different publishers’ ratings easier to compare. The original review still tells you why a critic reached that verdict.

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Scale conversion · example

8/ 104.00/ 5

An illustration of conversion, not this product’s rating.

  1. Check the match

    Identify the exact model and the version reviewed. Check the manufacturer code, configuration and supplied accessories.

  2. Compare on one scale

    Convert usable ratings to five points, count each publisher once and give each critic equal weight.

  3. Require three critics

    Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.

Find the best fit by considering the score alongside the critic count, review dates, tested version and the strengths that matter to you. Eligible model-level reviews identify the tested configuration. Reviews of different hardware are shown separately and do not enter this product’s COR Score.

Know exactly what you’re buying

HP 420 specifications

Manufacturer code: WM640ET · Icecat product 20918610 · Checked 24 Sep 2026. Specifications belong to this exact model.

Key specifications

The main features to compare for this exact model. Missing details are not assumed.

HP 420 — key specifications
Processor familyIntel® Xeon® E5 Family
Processor modelE5-1603
Memory (RAM)4 GB
Total storage capacity500 GB
Storage mediaHDD
Operating system installedWindows 7 Professional
Discrete graphics card modelNot available
Chassis typeMini Tower
Wi-FiNo
Ethernet LANYes

More product specifications

Open a section for the details that matter to you.

Audio & listening3 details
HP 420 — Audio & listening
Headphone outputs1
Microphone inYes
Audio systemHD
Display2 details
HP 420 — Display
Intel Dual Display Capable TechnologyNo
Display includedNo
Processor, memory & storage33 details
HP 420 — Processor, memory & storage
Processor manufacturerIntel
Processor cores4
Processor threads4
Processor frequency2.8 GHz
Processor cache10 MB
Processor cache typeL3
Processor lithography32 nm
Processor operating modes64-bit
Processor codenameSandy Bridge EP
Number of processors installed1
Processor socketLGA 2011 (Socket R)
Maximum internal memory supported by processor375 GB
Memory types supported by processorDDR3-SDRAM
Memory clock speeds supported by processor800,1066 MHz
Memory bandwidth supported by processor (max)31.4 GB/s
ECC supported by processorYes
Maximum internal memory64 GB
Internal memory typeDDR3-SDRAM
Memory layout (slots x size)2 x 2 GB
Memory slots8x DIMM
Memory clock speed1600 MHz
HDD capacity500 GB
HDD speed7200 RPM
Card reader integratedNo
On-board graphics cardNo
On-board graphics card modelNot available
Motherboard chipsetIntel® C602
Intel® Smart CacheYes
Processor package size52.5 x 45.0 mm
Processor codeSR0L9
Intel Rapid Storage TechnologyNo
Processor ARK ID64600
Conflict-Free processorNo
Camera, image & video4 details
HP 420 — Camera, image & video
Intel® Clear Video HD Technology (Intel® CVT HD)No
Intel Clear Video TechnologyNo
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)No
Intel® Quick Sync Video TechnologyNo
Connections & wireless13 details
HP 420 — Connections & wireless
HDD interfaceSATA
BD interface typeSATA
Ethernet LAN data rates10,100,1000 Mbit/s
USB 2.0 ports quantity5
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity4
Ethernet LAN (RJ-45) ports1
Combo headphone/mic portNo
DVI portNo
PS/2 ports quantity2
Firewire (IEEE 1394) ports2
S/PDIF out portNo
DC-in jackNo
Intel® Wireless Display (Intel® WiDi)No
Power & battery1 detail
HP 420 — Power & battery
Power supply600 W
Controls & features2 details
HP 420 — Controls & features
SmartCard slotNo
Intel® Smart Response TechnologyNo
Design & dimensions7 details
HP 420 — Design & dimensions
Thermal Design Power (TDP)130 W
Product typeWorkstation
Product colourBlack
Width177.8 mm
Depth445.2 mm
Height447.6 mm
Weight12.5 kg
Software & compatibility3 details
HP 420 — Software & compatibility
Operating system architecture64-bit
Recovery operating systemWindows 8.1 Pro
Supported instruction setsAVX
Further product details48 details
HP 420 — Further product details
System bus rate0 GT/s
Bus typeQPI
FSB ParityNo
Tcase64 °C
PCI Express slots version3.0
Maximum number of PCI Express lanes40
SteppingM1
CPU multiplier (bus/core ratio)28
ECCYes
Memory channelsQuad-channel
Optical drive typeDVD Super Multi
Total HDDs capacity500 GB
Number of HDDs installed1
Optical drives quantity1
Cabling technology10/100/1000Base-T(X)
Line-outYes
Line-inYes
Number of 3.5" bays3
PCI Express x8 (Gen 2.x) slots1
PCI Express x8 (Gen 3.x) slots1
PCI Express x16 (Gen 3.x) slots2
PCI slots1
Number of 5.25" bays3
Intel 64Yes
Enhanced Intel SpeedStep TechnologyYes
Embedded options availableNo
Intel® InTru™ 3D TechnologyNo
Intel® Insider™No
Intel VT-x with Extended Page Tables (EPT)Yes
Idle StatesYes
Thermal Monitoring TechnologiesYes
Intel® AES New Instructions (Intel® AES-NI)Yes
Intel Trusted Execution TechnologyYes
Execute Disable BitYes
Intel FDI TechnologyNo
Intel Flex Memory AccessYes
Intel Fast Memory AccessNo
Intel Enhanced Halt StateYes
Intel Demand Based SwitchingYes
CPU configuration (max)1
Intel Virtualization Technology for Directed I/O (VT-d)Yes
Intel Virtualization Technology (VT-x)Yes
Intel® Turbo Boost TechnologyNo
Intel® Hyper Threading Technology (Intel® HT Technology)No
Intel® My WiFi Technology (Intel® MWT)No
Intel® Anti-Theft Technology (Intel® AT)No
Mouse includedNo
Keyboard includedYes
Packaging & supplied accessories2 details
HP 420 — Packaging & supplied accessories
Country of originChina
Cables includedAC

Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.

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Your questions, answered

HP 420 FAQs

How many expert reviews are available for HP 420?

No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.

What is the COR Score for HP 420?

The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.

Which exact version does this page cover?

This page identifies HP 420 using manufacturer code WM640ET. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.

What is the listed processor family for HP 420?

The source specification records processor family as Intel® Xeon® E5 Family. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.

What is the listed processor model for HP 420?

The source specification records processor model as E5-1603. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.

Where can I compare prices for HP 420?

Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.

Is a desktop cheaper than a laptop?

It can offer different value, but compare the whole usable setup including display and peripherals.

Can I upgrade any desktop?

No. Chassis, power supply, motherboard and warranty constraints vary. Read the exact model documentation.

Does a larger power supply use more electricity?

Its rating is capacity, not a measure of constant consumption. Actual use depends on the components and workload.

How should I use the specifications alongside reviews?

Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.

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