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

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 every ProBook model, every generation, and every component you’ll need to know.

The good news: ProBooks are some of the easiest laptops to upgrade. Most have easily accessible SO-DIMM RAM slots, M.2 SSD bays, and swappable batteries. 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

All ProBook models support 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. At 1.4 kg (3.1 lbs), it’s designed for road warriors — but still packed with upgrade potential. Memory slots are easily accessible via a small panel on the bottom; the SSD is standard M.2 2280.

RAM Upgrade: Two SO-DIMM slots. Supports up to 64GB total with DDR4-3200 modules. 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: Single M.2 2280 NVMe slot. Supports PCIe Gen4 speeds. Original drives are usually 256GB or 512GB; upgrading to 1TB gives you room for large project files and media while maintaining system responsiveness.

Battery: Swappable 52.5Wh battery. Easy to remove; replacement units cost £40–60.

Charger: 45W USB-C power delivery. Standard across the 400-series.

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. Maximum capacity is still 64GB (2× 32GB), and the SSD slot remains M.2 2280 with Gen4 support. Upgradeability is identical to the G10 — the only difference is the memory standard.

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-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 64GB 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.

At 1.65 kg (3.6 lbs), it’s still portable — the extra screen size doesn’t add much weight compared to the 440.

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

ProBook 450 G11 (2024) — DDR5-5600

The ProBook 450 G11 is the direct successor, moving to DDR5-5600 memory. Same screen size (15″), same upgrade path (2× SO-DIMM, M.2 2280), new memory standard.

Performance improvements come mainly from the faster memory and newer CPU generation. Upgrading the storage is still the best bang-for-buck upgrade for general responsiveness.

See the ProBook 450 G11 page for detailed compatibility.

ProBook 460 & 470 Series — Larger Screens

ProBook 460 — 16-Inch Desktop Replacement

The ProBook 460 bridges the gap between the 15-inch 450 and the 17-inch 470. At 16 inches, it’s still portable enough for travel but spacious enough for spreadsheet work and coding.

G10 (2023): DDR4-3200, 2× SO-DIMM, M.2 2280 Gen4.

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

Same upgrade philosophy as the 440/450 — swap RAM, add storage, replace the battery. No soldered components means full flexibility.

ProBook 470 — 17-Inch Workstation

The ProBook 470 is for users who need maximum screen space — ideal for architects, engineers, and developers who never move their laptop. At 1.9 kg (4.2 lbs), it’s designed for desk-based work.

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

G11 (2024): DDR5-5600, 2× SO-DIMM, M.2 2280.

Same internals as the 460 — the only difference is screen size and weight. Upgrading a 470 follows identical steps: open the bottom panel, swap RAM and storage.

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

ProBook 640 & 650 Series — Premium Business

ProBook 640 — 14-Inch Premium

The ProBook 640 is HP’s premium 14-inch line — better build quality than the 440, more expensive, more professional styling. All ProBook 640 models use DDR5 memory from the start (no DDR4 version exists).

G10 & G11: DDR5-5600, 2× SO-DIMM, 64GB max, M.2 2280 Gen4.

If you’re buying a 640, it’s already future-proofed with DDR5. Upgrades are straightforward: the same bottom-panel access as the 440/450, same SSD slot.

Visit the ProBook 640 page for model-specific specs.

ProBook 650 — 15-Inch Premium

The ProBook 650 is the premium 15-inch option — a step up from the 450 in build and features. Like the 640, all 650 models ship with DDR5-5600 memory.

G10 & G11: DDR5-5600, 2× SO-DIMM, 64GB max, M.2 2280 Gen4.

Premium aesthetics, but the upgrade path is identical to the standard ProBook lines. RAM and storage swaps are quick and easy.

See the ProBook 650 page for full compatibility details.

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, 460, 470)

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. Pairs with existing stock RAM to reach 32GB or replace both for 64GB.

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, 450, 460, 470, 640, 650)

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, but works perfectly in ProBooks. Similar pricing to Corsair.

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

M.2 2280 NVMe SSD Upgrades (All ProBook Models)

All ProBooks accept M.2 2280 NVMe drives with PCIe Gen4 or Gen3 support. Gen4 is faster but Gen3 is cheaper; both work in any ProBook.

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.

HP ProBook Replacement Battery (52.5Wh) — Standard across 440, 450, 460, 470. Cost: £40–55. Easily swappable, improves battery life if original is degraded.

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. Remove the 6–8 screws holding the D-cover (bottom casing). Screws are typically Phillips-head and easy to remove with a standard screwdriver.

3. Locate the RAM slots. You’ll see two SO-DIMM slots near the middle of the board. 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. You’ll see a single 2280 slot, usually towards the edge of the board. There may be a protective sticker covering it.

4. Remove the protective sticker (if present) and pull the screw holding the drive at a 45-degree angle.

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 CPU and GPU are soldered directly to the motherboard and cannot be upgraded. You can only upgrade RAM, storage, and the battery. This is true across all ProBook models (440, 450, 640, 650, etc.).

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

All ProBook models max out at 64GB RAM (2× 32GB SO-DIMM modules). Stock configurations usually come with 8GB or 16GB, so there’s always room to upgrade. For most business users, 16GB is more than enough; 32GB or 64GB is overkill unless you’re running virtual machines or working with large datasets.

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

No, it’s not broken — the G10 simply doesn’t support DDR5. The G10 (2023) uses DDR4-3200 exclusively. DDR5 is only supported in the G11 (2024) and newer. Make sure you’ve checked your generation correctly. See the “How to Check Your ProBook Generation” section above.

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

Yes, absolutely. Any M.2 2280 NVMe SSD works in any ProBook. HP brands (like the HP EX950) are simply rebranded consumer SSDs. Brands like Samsung, Crucial, SK Hynix, and Western Digital are all fully compatible and often cheaper.

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

In most regions, opening the laptop to upgrade RAM and storage does not void the warranty — manufacturer warranties typically only cover the components you didn’t touch. However, if you cause physical damage during the upgrade (e.g., crack the motherboard), that’s on you. Be careful, ground yourself to avoid static discharge, and you’ll be fine. Consult HP’s official warranty policy for your region if in doubt.

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

A huge difference. Upgrading from a 256GB or 512GB SATA SSD to a 1TB NVMe M.2 drive reduces boot time from 20–30 seconds to 8–12 seconds. Application launch times drop noticeably. File transfers are 3–4× faster. It’s one of the best upgrades you can do for perceived performance, far better than RAM for typical office work.

Recommended Products

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

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

Related Guides

• Hp Laptop Upgrades
• Hp Probook 450 G11
• Hp Probook 450 G10
• Hp Pavilion 16 2024
• Ram Compatibility