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HP EliteBook 840 G1

Last modified by Mélodie on 2026/05/29 18:35
SpecificationValuePossible upgrades
BrandHewlett-Packard 
ModelHP EliteBook 840 G1 
BIOS or UEFI (Brand)UEFI HP L71 Ver. 01.30 dated Dec 09, 2014UEFI HP v: 01.49 Rev.A dated May 08, 2020
BIOS AccessF10 during POST 
Boot MenuF9 during POST 
CPUIntel Core i5-4310U (2.0 GHz, Turbo 3.0 GHz, 2 cores / 4 threads, L3 cache 3 MB, TDP 15 W)No (soldered CPU, socket BGA 1168)
Socket(s)BGA 1168 (soldered CPU, not replaceable) 
ChipsetIntel Haswell-ULT (8th series) 
RAM type(s)

DDR3L-1600 SO-DIMM (1.35V)

1 slot populated out of 2 (4 GB installed), maximum 16 GB

Possible upgrade: up to 2 x 8 GB SO-DIMM DDR3L-1600

Storage

2 available slots:

  • Internal M.2 slot (SATA only, 2242 form factor, B+M key)
  • 2.5" SATA bay (SSD or HDD)
  • M.2 slot: M.2 SATA 2242 B+M key SSD, from 128 GB to 1 TB
  • 2.5" bay: 2.5" SATA SSD (any capacity) or 2.5" SATA HDD
Display14" (35.6 cm), resolution 1366x768, anti-glare panel, LED backlight, 16:9 aspect ratio 
Suggested Linux Distributions

Lightest first:

  • Lubuntu
  • Xubuntu
  • Linux Mint
 
Usage
  • Productivity
  • Web browsing
  • Multimedia
 
URLLatest BIOS available at HP 
Tech DocIcecat HP EliteBook 840 G1 spec sheet (closest model) 

Installation and configuration : hands-on Notes

Accessing the components

A single latch on the bottom of the PC unlocks the service cover, which then slides off to provide access to the main internal components.

Replacing the battery, RAM modules, storage drives or the CMOS battery presents no particular difficulty.

Boot and USB devices

BIOS configuration (Advanced > Boot)

  • Boot modes
    The UEFI offers three boot modes: Legacy, UEFI with CSM, and UEFI without CSM.

Tests show that the "UEFI with CSM" mode works best for booting from a USB device.

After installation, it is necessary to switch back to "UEFI without CSM".

  • Fast Boot : Disable the "Fast Boot" option.
  • Boot priority : Move to the desired entry, press "+" to move it to the top of the list, then confirm with "Enter".

Bootable USB devices (USB stick, external drive) work in both USB 2.0 and USB 3.0.

Observations

  • Booting via USB 2.0 is slower, though the Live Linux environment remains responsive once loaded
  • With Ventoy, booting works in both Grub and Grub2 mode
  • GPT partition tables were confirmed to work as expected
  • A Zalman enclosure in CD-ROM emulation mode, with a hard drive using an MS-DOS partition table, produced a boot error (Unable to find a medium containing a live file system)

(The root cause has not been definitively identified. An MS-DOS partition table might be incompatible with this UEFI implementation, though the CD-ROM emulation remains a possible contributing factor.)

 

Langues / Languages

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