HP ProBook Upgrade Guide — RAM, SSD & Parts (2026)

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HP ProBook laptops are the workhorses of business computing — built to last, designed to upgrade. Whether you’re squeezing another year of performance out of a G10 or future-proofing a new G11, this guide covers the ProBook 440, 450 and 460 from the G10 and G11 generations, and the parts you can upgrade in them.

The good news: ProBooks are some of the easiest laptops to upgrade. Most have easily accessible SO-DIMM RAM slots and M.2 SSD slots, although the battery is internal and HP says it is not replaceable by the customer. The tricky bit: HP transitioned from DDR4 to DDR5 memory between 2023 and 2024 — buy the wrong type and it won’t fit.

ProBook Model Overview & Quick Reference

The ProBook models in this table all have 2× SO-DIMM RAM slots and M.2 SSD upgrades. Full compatibility charts available on individual model pages.

ProBook 440 Series — 14-Inch Ultraportable

ProBook 440 G10 (2023) — DDR4-3200

The ProBook 440 G10 is HP’s lightweight business ultrabook. Starting at 1.38 kg (3.03 lb), it’s designed for road warriors — but still packed with upgrade potential. The memory slots and SSD are under the bottom cover, and the main SSD is M.2 2280.

RAM Upgrade: Two SO-DIMM slots. HP lists a maximum of 32GB (2 x 16GB) of DDR4-3200. Stock configurations typically come with 8GB or 16GB, leaving room for a significant boost. Upgrading from 8GB to 16GB costs under £30 and provides noticeable snappiness for multitasking.

SSD Upgrade: One M.2 2280 NVMe slot for the main drive, which takes PCIe Gen4 drives (HP offers a 1TB PCIe Gen4 x4 option), plus a second M.2 slot for a second SSD on models without a WWAN module. Original drives are usually 256GB or 512GB; upgrading to 1TB gives you room for large project files and media while maintaining system responsiveness.

Battery: Internal 42Wh or 51Wh battery. HP says it is not replaceable by the customer and is serviced under warranty.

Charger: HP offers 45W and 65W adapters, in USB-C and non-USB-C (External AC) versions.

For the ProBook 440 G10, check out the full ProBook 440 G10 compatibility page and our guide to HP laptop RAM and SSD upgrades.

ProBook 440 G11 (2024) — DDR5-5600

IMPORTANT: The ProBook 440 G11 moved to DDR5 memory. This is not backwards compatible with the G10. If you own a G10 and upgrade to G11 later (or vice versa), the RAM is not transferable.

The G11 uses DDR5-5600 SO-DIMM modules. HP lists a maximum of 48GB (2 x 24GB), and the SSD slot remains M.2 2280 with Gen4 support. Upgrades work the same way as on the G10 — although HP lists no second SSD option for the 440 G11.

Upgrading a G11 from 8GB to 16GB DDR5 costs slightly more than DDR4 (£35–45) but delivers faster performance in memory-intensive tasks (video editing, large spreadsheets, virtual machines).

See the full ProBook 440 G11 page and our laptop RAM compatibility guide for all DDR5 models.

ProBook 450 Series — 15-Inch Standard

ProBook 450 G10 (2023) — DDR4-3200

The ProBook 450 G10 is the 15.6-inch workhorse for users who need more screen real estate. Same DDR4-3200 memory as the 440 G10, same M.2 2280 SSD slot, same 32GB RAM ceiling.

Setup is identical: two SO-DIMM slots easily accessible from the bottom, simple panel removal. If you’re coming from an older ProBook (G9, G8), you’ll find the 450 G10 is very straightforward to upgrade.

HP lists a starting weight of 1.74 kg (3.83 lb) with the 42Wh battery, compared with 1.38 kg (3.03 lb) for the 440 G10.

Visit the ProBook 450 G10 page for full RAM and storage specs.

Is There a ProBook 450 G11?

The ProBook 450 G11 does not appear in HP’s QuickSpecs. HP’s 2024 Intel ProBooks with DDR5-5600 memory are the 14-inch 440 G11 and the 16-inch 460 G11.

If you have a 15.6-inch ProBook 450 G10, it uses DDR4-3200 memory, as described above.

For HP’s 2024 16-inch model, see the ProBook 460 section below.

ProBook 460 & HP 470 — Larger Screens

ProBook 460 — 16-Inch Desktop Replacement

The ProBook 460 is HP’s 16-inch ProBook; the G11 is the version covered here. At 16 inches, it’s still portable enough for travel but spacious enough for spreadsheet work and coding.

G10 (2023): not found. We found no ProBook 460 G10 in HP’s QuickSpecs.

G11 (2024): DDR5-5600, 2× SO-DIMM, up to 48GB, M.2 2280 Gen4.

RAM and the M.2 SSD are customer-replaceable, as on the 440 and 450. The battery is internal and HP says it is not replaceable by the customer, and on the ProBooks we checked the processor is built into the system board.

HP 470 G10 (17-Inch, Not a ProBook)

The ProBook 470 name is how some retailers list HP’s 17-inch 2023 model, but HP’s own QuickSpecs call it the HP 470 G10 Notebook PC, and we found no G11 version. HP’s product sheet lists a starting weight of 2.08 kg (4.6 lb).

G10 (2023): DDR4-3200, 2× SO-DIMM, M.2 2280.

G11 (2024): no 470 G11 found in HP’s QuickSpecs.

The HP 470 G10 uses DDR4-3200 memory in two SO-DIMM slots, unlike the DDR5-5600 ProBook 460 G11, so check which model you have before buying RAM.

For the larger 460/470 models, check the HP laptop upgrades guide for full compatibility tables.

ProBook 640 & 650: Now EliteBooks

EliteBook 640 G10 (Not a ProBook)

The ProBook 640 name is not used for the 2023 model: HP’s QuickSpecs list the 14-inch 640 G10 as the HP EliteBook 640 G10 — a separate business range not covered in detail here. HP’s QuickSpecs list DDR4-3200 (up to 64GB), not DDR5 memory, for the EliteBook 640 G10.

G10 & G11: not ProBooks. HP sells these as EliteBooks, such as the EliteBook 640 G10, 650 G10 and 640 G11, so check their QuickSpecs for memory and storage.

If you have a 640 G10, it is an EliteBook, so use HP’s EliteBook 640 G10 QuickSpecs rather than this guide when buying parts.

EliteBook 650 G10 (Not a ProBook)

The ProBook 650 name is not used for the 2023 model either: HP’s QuickSpecs list the 15.6-inch 650 G10 as the HP EliteBook 650 G10, which is outside this guide.

G10 & G11: not ProBooks. HP sells these as EliteBooks, such as the EliteBook 640 G10, 650 G10 and 640 G11, so check their QuickSpecs for memory and storage.

If you have a 650 G10, use HP’s EliteBook 650 G10 QuickSpecs when buying parts.

Earlier ProBook 650 models are not covered by this guide.

CRITICAL: DDR4 vs DDR5 Transition (2023 to 2024)

This is the most important thing to understand about upgrading ProBooks right now: HP switched from DDR4 to DDR5 between the G10 (2023) and G11 (2024) generations. If you buy the wrong memory, it will not fit in your laptop.

How to Check Your ProBook Generation

There are three ways to determine whether you have a G10 or G11:

1. Check the label under the laptop: Look for “ProBook 440 G10” or “ProBook 440 G11” on the bottom casing. This is the definitive source.

2. Check Windows System Information: Press Win + Pause/Break (or right-click “This PC” → Properties). Look for the system model name in the list. It will include “G10” or “G11”.

3. Use CPU-Z (free tool): Download CPU-Z from cpuid.com. Open the SPD tab, click Memory Slot. If it shows “DDR4”, it’s a G10. If it shows “DDR5”, it’s a G11.

DDR4 vs DDR5 at a Glance

The key takeaway: If you try to install DDR5 in a G10 laptop, it will not physically fit. The notch in the SO-DIMM slot is in a different position. You cannot force it.

Why This Matters for Upgrades

If you currently own a ProBook 440 G10 (DDR4), and you order a RAM upgrade online without checking the generation, you might accidentally receive DDR5 modules — which won’t work. Always double-check your generation before buying memory.

Similarly, if you’re inheriting or buying a used ProBook, verify the generation to ensure any upgrades you purchase will be compatible.

For a comprehensive guide to DDR4 and DDR5 memory, see our laptop RAM compatibility guide.

Recommended Upgrade Parts

DDR4-3200 SO-DIMM (For ProBook G10: 440, 450)

If you own a G10 ProBook, these are the upgrades to buy:

Corsair DDR4-3200 16GB SO-DIMM — Reliable, fast, widely available. Cost: £40–50 for one module. Two of these give the 32GB maximum HP lists for the 440 G10 and 450 G10.

Kingston DDR4-3200 SO-DIMM — Another solid choice, often slightly cheaper than Corsair. Similar performance.

Crucial DDR4-3200 SO-DIMM — Budget-friendly, perfectly adequate for ProBook workloads.

DDR5-5600 SO-DIMM (For ProBook G11: 440, 460)

If you own a G11 ProBook, upgrade to DDR5:

Corsair DDR5-5600 16GB SO-DIMM — Fast, reliable, excellent performance. Cost: £50–60 for one module. Noticeable speed boost in video editing and virtualization.

Kingston FURY DDR5-5600 SO-DIMM — Gaming-focused line; HP recommends HP-branded memory, so check Kingston’s compatibility list for your model. Similar pricing to Corsair.

Crucial DDR5-5600 SO-DIMM — Excellent value option for business use.

M.2 2280 NVMe SSD Upgrades (ProBook G10 and G11)

The ProBook 440 G10, 450 G10, 440 G11 and 460 G11 take an M.2 2280 NVMe drive in the main slot, and HP fits PCIe Gen4 x4 drives in them. A PCIe Gen3 drive also works in a Gen4 slot, at Gen3 speeds.

Samsung 970 EVO Plus 1TB — Industry standard, reliable, excellent performance. Cost: £60–75. Best for heavy file work and content creation.

SK Hynix P41 Platinum 1TB — Faster than the EVO Plus, runs cooler. Cost: £50–65. Excellent for video editing.

Crucial P5 Plus 1TB — Great value option. Cost: £40–50. Perfectly adequate for general business use.

Western Digital Black SN850X 1TB — Premium choice, fastest of the bunch. Cost: £70–85.

Charger & Battery Replacements

HP 45W USB-C Charger — Official HP part, compatible with ProBook 400, 600 series. Cost: £30–40. Also works with most modern ultrabooks.

Battery: HP lists 42Wh or 51Wh batteries for the 440 G10 and 450 G10, and 48Wh or 56Wh for the 440 G11 and 460 G11. On all four the battery is internal and HP says it is not replaceable by the customer, so a replacement is a job for HP or an authorised service provider.

Step-by-Step Upgrade Process

RAM Upgrade

1. Power off the laptop and unplug the charger. Wait 30 seconds for any residual charge to dissipate.

2. Open the bottom panel. Undo the screws holding the D-cover (bottom casing): HP’s service guides list five captive Phillips screws on the 440 G11, and three captive Phillips screws plus two Phillips M2.0 x 4.0 screws on the 450 G10. Then disconnect the battery cable from the system board, as HP instructs before removing memory or the SSD.

3. Locate the RAM slots. Lift the protective shielding over the memory to reach the two SO-DIMM slots. If RAM is already installed, you may see one or two modules.

4. Remove existing RAM (optional). If upgrading capacity, push the clips on either end of the module outward — the RAM will pop up at a 45-degree angle. Gently pull it out. Avoid touching the gold contacts.

5. Install new RAM. Align the new module with the slot (notch goes towards the center of the board). Push down at a 45-degree angle until the clips snap into place. You’ll hear a click when it’s seated properly.

6. Replace the bottom panel. Screw the D-cover back on. Do not over-tighten.

7. Power on and verify. Boot Windows. Press Win + Pause/Break or check Device Manager → System Information to confirm the new RAM is detected.

SSD Upgrade

1. Power off and unplug.

2. Open the bottom panel (same as RAM upgrade).

3. Locate the M.2 SSD slot. The main SSD sits in an M.2 2280 slot and may have a cover or shield over it. G10 models without a WWAN module can also have a second M.2 slot.

4. Remove the protective sticker (if present), then remove the Phillips screw or screws that secure the drive.

5. Remove the old SSD. Grasp the SSD at the 45-degree angle and gently pull it out.

6. Install the new SSD. Align the gold connector with the slot and push down at 45 degrees until the screw hole aligns. Screw it in place.

7. Replace the bottom panel.

8. Boot into BIOS (F10 during startup) or Windows. The SSD should be detected automatically. You may need to initialize it in Disk Management if it’s a fresh drive.

Note: If upgrading from a smaller drive, you’ll typically migrate your Windows installation to the new SSD using a cloning tool (e.g., Acronis True Image, Macrium Reflect) or perform a fresh Windows installation.

Frequently Asked Questions

Can I upgrade the CPU or GPU in a ProBook?

No. The processor is built into the system board, and HP sells the board as one part that includes the processor, with separate board versions for models with NVIDIA GeForce RTX 2050 graphics. HP’s service guide lists the memory modules and solid-state drive as customer self-repair parts, while the battery and system board are for authorised service providers. In practice, RAM and storage are the upgrades available to you.

What’s the maximum RAM I can install in a ProBook?

It depends on the model. HP’s QuickSpecs list a maximum of 32GB (2 x 16GB DDR4-3200) for the ProBook 440 G10 and 450 G10, and 48GB (2 x 24GB DDR5-5600) for the ProBook 440 G11 and 460 G11. All four have two SO-DIMM slots. Check the QuickSpecs for your exact model before buying, as HP does not list larger modules for these models.

My ProBook 440 G10 won’t accept DDR5 memory. Is it broken?

No, it is working as designed. The ProBook 440 G10 uses DDR4-3200 SO-DIMMs, and DDR5 modules cannot be fitted to it: DDR5 SO-DIMMs have 262 pins versus 260 for DDR4, and the key notch is in a different position so the wrong type will not seat. The 440 G11 is the model that moved to DDR5-5600. Check the model name on the label underneath before ordering memory.

Can I use a non-HP branded SSD in my ProBook?

Yes. Recent ProBooks such as the 440 G10 and G11 use standard M.2 PCIe NVMe SSDs, and the main slot takes the M.2 2280 size, so drives from Samsung, Crucial, WD and others will fit if they match the length your slot takes. HP’s recommendation to use HP-branded parts in the QuickSpecs applies to memory modules, where it cites compatibility with some third-party modules.

Is there a warranty issue if I upgrade the RAM or SSD myself?

Usually not, because HP classes the memory modules and SSD as Customer Self-Repair parts in the ProBook service guides. HP adds that the programme is not available in every location and that installing a part outside it can void the warranty, while parts such as the battery are for authorised service providers only. Check your own HP warranty terms; HP’s QuickSpecs note you may also have statutory rights under local law.

How much faster will my ProBook feel after upgrading the SSD?

On a recent ProBook the main gain is usually extra capacity rather than a big jump in speed, because models such as the 440 G10 and G11 already ship with PCIe NVMe SSDs. HP fits PCIe Gen4 x4 NVMe drives in the 440 G11 and in the 1TB option on the G10 models, so moving to a larger Gen4 x4 NVMe SSD mainly gives you more room. Keep your existing drive until the new one is cloned.

Recommended Products

These are the products we recommend based on this guide. All links go to Amazon where you can check current prices and availability.

Prices and availability may vary. As an Amazon Associate, we earn from qualifying purchases.

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