✓LaptopCheckInspector
Free guide and toolkit for checking a second-hand laptop  ·  laptopcheck.pages.dev

Latitude 7420

Inspection report · 29 September 2026 at 10:26 · v1.2.0 · full access

Something here is a deal-breaker
2 deal-breaker1 worth haggling1 clean1 skipped1 unavailable

This is an example

Generated from sample data to show the format — it is not a real laptop. A real report is produced by LaptopCheck Inspector running on the machine you are buying.

What this laptop is good for

Scored from what was measured on this machine, not from the model name. Three of the inputs — whether the memory really runs dual channel, what the drive really writes at, and how far the clock really falls under load — are the exact things that make two laptops with the same spec sheet perform differently.

Everyday & browsing
Email, web, streaming, documents.
77/100
Good

Comfortable for everyday use.

Will handle
  • Chrome or Edge with 10–20 tabs, Office, Zoom or Teams, Netflix and YouTube at 1080p
  • Boots in well under a minute and wakes instantly
Worth knowing
  • Battery at 71% of its original capacity — unplugged runtime is already well down on new.
Office & multitasking
Many apps and tabs at once, video calls while working.
63/100
Good

Handles a busy desktop well.

Will handle
  • 30+ browser tabs alongside Teams, Outlook, Excel and Slack without swapping
  • Screen sharing on a video call while other apps keep running
Worth knowing
  • Throttles under load, so a long call plus a big spreadsheet will get sluggish.
Development & programming
IDEs, compilers, containers, emulators.
57/100
Workable

Fine for web and scripting work; heavy toolchains will hurt.

Will handle
  • VS Code, Git, Node, Python, a local database
  • Docker with a few containers, or IntelliJ on a mid-size project
Will struggle with
  • Large C++ or Rust builds — expect minutes, not seconds
Worth knowing
  • A long build is exactly the sustained load this machine throttles under.
Photo & video editing
Lightroom, Photoshop, Premiere, DaVinci Resolve.
42/100
Workable

Workable for 1080p and photos, slow for anything bigger.

Will handle
  • Photoshop and Lightroom on JPEGs, light retouching
  • 1080p editing in Premiere or DaVinci Resolve, with proxies for anything longer
Will struggle with
  • 4K footage — you will need proxy workflows, and exports will be slow
Worth knowing
  • An export is sustained load, which is where this machine slows down.
Gaming
What will actually run, and how well.
39/100
Struggles

Esports and indies yes, modern AAA no.

Will handle
  • Esports and indies at 1080p — League of Legends, Rocket League, CS2, Valorant, Stardew Valley, Hades above 60 fps
  • Older and lighter AAA at 1080p low — GTA V, Skyrim, The Witcher 3 around 30 fps
Will struggle with
  • Current AAA titles. Microsoft Flight Simulator only runs at 720p low
Worth knowing
  • Graphics class: modern integrated. These are performance classes, not guarantees — the same chip varies widely between chassis depending on its power limit and cooling.
  • Clock drops 38% under load, so frame rates will fall away after the first few minutes. In a gaming laptop this usually means old thermal paste or a clogged fan.

These are performance classes, not benchmarks. The same chip runs very differently in a thin chassis with a low power limit than in a thick one — which is why the throttle test above matters more than the model number. If a score looks wrong for a machine you know well, the feedback link at the foot of this page is how the scoring gets better.

What was checked

Jump to any check below. 2 of them did not run — where a check was skipped, nothing here should be read as a clean result.

CheckResult
ProcessorOK
Battery healthCheck
CPU stress & throttle testProblem
Windows licence, locks & ownershipProblem
Keyboard testSkipped
Memory pattern testUnavailable
What is this laptop good for?Info
Finish in your browserInfo

Gathered in one pass by LaptopCheck Inspector, in place of CrystalDiskInfo, BatteryInfoView, CPU-Z, HWiNFO, dxdiag, msinfo32 and half a dozen commands.

Full system configuration

Everything the laptop reports about itself. Read it against the seller's description line by line — anything that does not match is either an honest mistake or a reason to renegotiate.

System

ManufacturerDell Inc.
ModelLatitude 7420
Product familyLatitude
Serial number7XJ4K93Must match the sticker on the base.
Chassis typeNotebook
Asset tagCORP-004182A corporate asset tag means this was a company machine.
Build eraMarch 2021From firmware date — approximate.

Firmware & motherboard

BIOS vendorDell Inc.
BIOS version1.31.0
BIOS date2021-03-14
MotherboardDell Inc. 0KP0FT
Boot modeUEFI

Processor

Model11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz
Cores / threads4 cores, 8 threads
Rated clock3.00 GHz
L3 cache12288 KB
VirtualisationEnabled in firmware

Memory

Slot DIMM A8 GB @ 3200 MT/s · Micron · MTA4ATF1G64HZ-3G2E1
Slot DIMM B8 GB @ 3200 MT/s · Micron · MTA4ATF1G64HZ-3G2E1
Total installed16 GB
TypeDDR4
Slots2 of 2 used

Storage

ModelKIOXIA KBG40ZNS512G
Capacity476.9 GB
TypeSSD
InterfaceNVMe
SMART healthHealthy
Power-on hours11,482 (~1.3 years)
SSD wear37% of write endurance used
Temperature44 °C

Region & locale

System regionIndia (IN)
Timezone(UTC+05:30) Chennai, Kolkata, Mumbai, New Delhi
Keyboard languageEnglish (India)
Locale codeen-IN

Battery

Design capacity63,000 mWh
Full charge capacity44,982 mWh
Cycle count612
Health71.4%

Tick each row that matches what the seller told you. Anything left unticked is what you negotiate on. The boxes work on screen and print blank for filling in by hand.

Processor

OK

Processor identified.

Processor
Intel Core i7-1185G7
4 cores, 8 threads
Cores / threads
4 / 8
Windows 11 support
11th-gen Intel — supported

Took 1.4 s

Battery health

Check

Battery is worn — use it to negotiate.

Battery health
71.4%
Worn — 18,018 mWh of the original capacity is gone. Factor a replacement into the price.
Charge cycles
612
Past the 300–500 cycle rating.

Took 11.2 s

CPU stress & throttle test

Problem

Throttles badly under load.

Clock under sustained load
2.94 GHz → 1.81 GHz (38.4% drop)
Heavy throttling. This laptop will feel fast for thirty seconds and slow after that.
CPU temperature
Not available
Reading CPU package temperature needs a signed kernel driver, which this tool deliberately does not install.

Took 46 s

Windows licence, locks & ownership

Problem

Ownership problem — settle it before any money changes hands.

Devices with errors
0
Everything in Device Manager is working.
Azure AD joined
YES
Still enrolled to a company tenant. They can wipe or lock it remotely.
Windows activation
Activated
Licence channel: Volume:MAK.

Keyboard test

Skipped

Skipped — not checked.

Memory pattern test

Unavailable

This check could not run.

Not enough free memory.

Finish these in your browser

A desktop app has no privileged access to a camera, a microphone or a touch digitiser — the browser asks permission and gets a live stream, which is what these tests need. Open these on the laptop you are testing.

Webcam
Needs a live video stream and the camera permission prompt. Opens a preview so you can check focus, colour and whether the privacy shutter is closed.
https://laptopcheck.pages.dev/tester#webcam
Microphone
Needs a live audio stream. Shows an input level meter so you can see the mic responding as you speak.
https://laptopcheck.pages.dev/tester#mic
Touchscreen
Needs raw touch events. Draw across the whole panel to find dead zones.
https://laptopcheck.pages.dev/tester#touch
Trackpad & buttons
Tests movement, both buttons, scroll and multi-touch gestures in one canvas.
https://laptopcheck.pages.dev/tester#mouse
Keyboard rolloverpartly covered above
This app already finds dead keys. The browser version adds rollover — how many keys register at once — which matters for typing and gaming.
https://laptopcheck.pages.dev/tester#keyboard
Screen gradients & bandingpartly covered above
This app cycles solid colours for dead pixels. The browser version adds grayscale and colour gradients, which is how you catch banding on a cheap panel.
https://laptopcheck.pages.dev/tester#display
Speakers (stereo separation)partly covered above
This app plays a left-then-right tone. The browser version sweeps frequencies, which exposes a blown driver that a single tone can hide.
https://laptopcheck.pages.dev/tester#speakers
Internet speed
Measures real throughput on the seller's connection — useful for proving the Wi-Fi card works in practice.
https://laptopcheck.pages.dev/tester#internet
Every physical port
No software can test a socket. The guide lists what to plug into each one and what to watch for.
https://laptopcheck.pages.dev/input#ports
Bluetooth pairing
This app confirms the radio exists. Actually pairing a device is the only proof it works — the guide walks through it.
https://laptopcheck.pages.dev/system#wireless
Physical & ownership inspection
Liquid damage, hinge wear, mismatched screws, BIOS password locks and proof of ownership. All of it needs your eyes and a reboot, none of it is visible from inside Windows.
https://laptopcheck.pages.dev/inspection

What nothing on this page can tell you