HP ProBook 440 G8 Notebook PC — RAM, SSD and CPU upgrade guide

Updated Oct. 19, 2026 · Written from this device's verified specifications

The HP ProBook 440 G8 is a 14-inch business laptop from 2021, built on Intel's 11th-Gen "Tiger Lake-UP3" platform. Inside it's refreshingly simple: two memory slots and one SSD bay, and nothing else to add. That makes upgrades quick and worthwhile — more RAM and a bigger or faster SSD are both easy wins. The processor is a different story: it's soldered to the board, so there is no CPU upgrade at all. Below is what fits, the limits, and what to watch out for before you buy.

At a glance

  • RAM: 2x DDR4 SO-DIMM, up to 16 GB each, 32 GB total, 3200 MT/s
  • Storage: 1x M.2 2280 PCIe NVMe Gen3 x4 — the only drive bay
  • CPU: soldered, not upgradeable
2x DDR4 SO-DIMM (260-pin), up to 16 GB each2 × DDR4 SO-DIMM · up to 32 GB total · 3200 MT/s
1x M.2 2280 M-key PCIe NVMe Gen3 x4SSD M.2 2280 (NVMe)
2 × SO-DIMM · DDR4up to 32 GB total1x M.2 2280 M-key PCIe NVMe Gen3 x4SSD M.2 2280 (NVMe)
Schematic of the upgradeable slots (not to scale). Check the owner's manual for their exact positions.

Lifecycle and support

A current model: sold new and supported.

20202021202220232024202520262027Today11 · Release · November 2020
Filled dots: dates published by the manufacturer. Hollow dots: estimates from third-party sources.
MilestoneDate
Release
First available to buy.		 November 2020 Estimate Also corroborated by https://www.itworldcanada.com/article/hp-releases-probook-600-g8-and-probook-400-g8-business-laptops/435832
Source ↗

Dates not listed haven't been published by the manufacturer or a reliable third party.

RAM upgrade

The ProBook 440 G8 has two DDR4 SO-DIMM slots (260-pin), and both are socketed — nothing is soldered down, so whatever you have installed can come out and be replaced. The modules are DDR4-3200 (PC4-25600), 1.2 V, unbuffered and non-ECC. ECC and registered server-style SO-DIMMs are unsupported and will not work.

Capacity limit: up to 16 GB per module, so 2 x 16 GB = 32 GB is the hard ceiling. Only 4, 8 and 16 GB modules are listed for this machine; 32 GB modules are not validated for it, so treat 32 GB total as the maximum. If your laptop currently has an odd combination such as 8 + 4 GB, that's factory-original and fine to keep — but it isn't dual-channel matched.

Speed: the memory runs at 3200 MT/s at most, and if you mix speeds the whole system runs at the slower module's rate. Dual-channel mode needs a matched pair. So the clean approach is a two-module kit of identical DDR4-3200 SO-DIMMs.

One caveat on who's allowed to do this. HP's official QuickSpecs describe the slots as upgradeable by IT or self-maintainers only, and HP recommends HP-branded memory for compatibility and warranty reasons. Another HP datasheet simply calls both slots customer-accessible and upgradeable. In practice, self-upgrading is straightforward, but if the machine is under a business warranty, third-party modules can be blamed for any memory-related fault.

Buying tips

  • Buy a matched pair of DDR4-3200 SO-DIMMs (2 x 8 GB or 2 x 16 GB) for dual-channel performance
  • Skip ECC, registered or "server" SO-DIMMs — this laptop needs plain unbuffered non-ECC DDR4
  • Don't exceed 16 GB per module; 32 GB modules aren't validated here
  • HP recommends HP-branded memory if you want to stay closest to the warranty terms

SSD / storage upgrade

There is exactly one drive bay: an M.2 2280 M-key slot running PCIe NVMe Gen3 x4. That's it — no 2.5-inch bay, no second M.2 slot, and no SATA M.2 support (HP's parts and configuration lists only show NVMe drives). There's a microSD card slot on the outside, but that's a card reader, not a drive bay, and the small M.2 2230 slot inside is for the WLAN/Bluetooth module only. There is no WWAN/LTE slot on this model.

Because there's only one bay, plan your capacity up front: if the factory drive is too small, the fix is to replace it and clone or image the old drive, not to add a second one. HP doesn't publish a maximum drive capacity for the slot; the largest factory option is a 1 TB NVMe drive, and drives at least that size are known-good territory.

Speed is where a swap can pay off. Some base configurations shipped with "Value" PCIe Gen3 x2 SSDs (and the Optane H10 hybrid drive is an x2x2 design), even though the slot itself is Gen3 x4. A full x4 NVMe SSD is therefore a genuine speed upgrade over many stock drives, at the same or larger capacity.

Physical fit matters. Every factory drive is single-sided and 2.3 mm high. A double-sided M.2 2280 module may not clear the chassis, so prefer a single-sided drive. There are also no mounting points for 2230, 2242 or 2260 lengths — it's 2280 or nothing.

Buying tips

  • Choose an M.2 2280 NVMe (M-key) SSD; SATA M.2 drives won't work here
  • Pick a Gen3 x4 model to make the most of the slot — many stock drives are only Gen3 x2
  • Prefer a single-sided drive; double-sided modules may not fit
  • Buy the capacity you need now, since you can only have one drive in the laptop

How to upgrade

Before you start

  • Back up your data first — especially before replacing the only SSD, which holds everything
  • Save any BitLocker recovery key and check for BIOS/firmware updates; install them before opening the case if any are pending
  • Power the laptop off fully and unplug the AC adapter
  • Ground yourself (touch an earthed metal object) or use an anti-static strap, and work on a non-conductive surface
  • Have the HP Maintenance and Service Guide open for the exact disassembly steps and screw locations for your model

Steps

  1. Back up your data
    Make a full backup or image before you touch anything. If you're replacing the SSD, this is your only copy of the operating system and files, so plan how you'll clone or reinstall first.
  2. Power down and disconnect
    Shut the laptop down (not sleep), unplug the AC adapter, and remove any connected devices and cards.
  3. Ground yourself
    Discharge static by touching an earthed metal object, and keep the removed screws together by position.
  4. Open the case
    Open the bottom cover following the HP Maintenance and Service Guide for the ProBook 440 G8. The guide has the exact screw sizes and removal order; force-free removal is the rule — if something resists, re-check the guide rather than prying.
  5. Install the part
    RAM: seat each DDR4 SO-DIMM firmly at an angle and press it down until the side clips lock. Aim for a matched pair in the two slots. SSD: line up the M.2 2280 NVMe drive with the slot and the 2280 mounting post, slide it in, and secure it with the single retaining screw. Don't use a double-sided or shorter-length drive.
  6. Close the case
    Refit the cover and screws in reverse order, then reconnect the AC adapter.
  7. Check the BIOS sees the new part
    Power on and enter the BIOS/firmware setup to confirm the installed memory total and the NVMe drive are detected. Then let the operating system boot and verify the same (memory in Task Manager/System Information, the drive in Disk Management, where you may need to initialise and format a brand-new SSD).

Good to know

  • Sources differ on who may upgrade the memory: one HP datasheet calls both slots customer-accessible and upgradeable, while HP's QuickSpecs say upgrade should be done by IT or self-maintainers and recommend HP-branded memory. If a warranty matters to you, check the terms before fitting third-party modules.
  • HP doesn't publish a maximum SSD capacity for the M.2 slot; the largest factory-configured drive is 1 TB NVMe.

Frequently asked questions

How much RAM can the HP ProBook 440 G8 take?

Up to 32 GB total, as two 16 GB DDR4-3200 SO-DIMMs. Both slots are socketed, so you can replace whatever is installed.

Can I install 32 GB memory modules?

Not as validated for this machine. Only 4, 8 and 16 GB modules are listed, and 32 GB SO-DIMMs aren't validated here, so stick to 2 x 16 GB for the 32 GB maximum.

Does it support ECC or registered memory?

No. It needs plain DDR4-3200, 1.2 V, unbuffered, non-ECC SO-DIMMs. ECC and registered modules won't work.

Can I add a second SSD or a 2.5-inch hard drive?

No. There is one M.2 2280 NVMe bay and no second drive bay of any kind. To get more space you replace the existing drive and clone or reinstall to it.

Does it support SATA or short-length M.2 drives?

No SATA M.2 support — NVMe only. It also has no mounting points for 2230, 2242 or 2260 drives, so the drive must be 2280 (22 x 80 mm), and single-sided is safest for clearance.

Can I upgrade the CPU?

No. The 11th-Gen Tiger Lake processor is soldered to the motherboard — there's no socket — and later CPUs aren't compatible. RAM and a faster NVMe SSD are your only upgrades.

Official documents and references

This guide was written with AI assistance from the compatibility data PartsPrices verified against the manufacturer's documents. Always check your exact model and the owner's manual before buying or opening your computer.