HP EliteBook 840 G5 Notebook PC upgrades
Released 2018 · on sale
The CPU is a soldered low-power U-series chip (BGA) with no CPU socket, inferred from general knowledge rather than the sources. There is no 2.5" bay or optical drive. Card reader and WWAN/WLAN slots were not confirmed.
Upgrade guide → What fits, step by step, and official documents.
- DDR4 SO-DIMM memory slot: 2 × DDR4 SO-DIMM · up to 32 GB total · 2400 MT/s
- M.2 2280 SSD slot: SSD M.2 2280 (NVMe / SATA) · up to 1 TB
DDR4 SO-DIMM memory slot 2 × DDR4 SO-DIMM · up to 32 GB total · 2400 MT/s
Runs at DDR4-2400 with 8th-gen CPUs and DDR4-2133 with 7th-gen CPUs; faster modules are downclocked. Update the BIOS before adding memory. A single module must go in socket 1. Use unbuffered non-ECC modules.
| $/GB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $3.48 | $27.82 | 8 GB | Crucial 8GB DDR4-2400 SO-DIMM DDR4-2400 CL17 SO-DIMM | Used | eBay US +2 | View deal |
| $4.25 | $67.99 | 16 GB | Crucial 16GB DDR4-3200 SO-DIMM runs at 2400 MT/s DDR4-3200 CL22 SO-DIMM | New | eBay US +2 | View deal |
| $4.37 | $69.99 | 16 GB | Crucial 16GB DDR4-3200 SO-DIMM runs at 2400 MT/s DDR4-3200 CL22 SO-DIMM | Used | eBay US +2 | View deal |
| $5.47 | $175.00 | 2 × 16 GB | Crucial 32GB Kit (2 × 16GB) DDR4-3200 SO-DIMM runs at 2400 MT/s DDR4-3200 CL22 SO-DIMM | Used | eBay US +1 | View deal |
| $6.19 | $197.98 | 2 × 16 GB | Crucial 32GB Kit (2 × 16GB) DDR4-3200 SO-DIMM runs at 2400 MT/s DDR4-3200 CL22 SO-DIMM | New | eBay US +2 | View deal |
| $7.26 | $58.05 | 8 GB | Crucial 8GB DDR4-2400 SO-DIMM DDR4-2400 CL17 SO-DIMM | New | eBay US +2 | View deal |
| $7.75 | $31.00 | 4 GB | Crucial 4GB DDR4-2666 SO-DIMM runs at 2400 MT/s DDR4-2666 CL19 SO-DIMM | New | eBay US +2 | View deal |
| $8.94 | $35.78 | 4 GB | Crucial 4GB DDR4-2666 SO-DIMM runs at 2400 MT/s DDR4-2666 CL19 SO-DIMM | Used | eBay US +1 | View deal |
M.2 2280 SSD slot SSD M.2 2280 (NVMe / SATA) · up to 1 TB
Supports PCIe Gen3 x4 NVMe or SATA M.2 drives; the documented maximum is 1 TB. Gen4/Gen5 drives only run at Gen3 speed. Only one drive slot, so upgrading replaces the existing SSD. Opal 2/FIPS factory drives may be configuration-tied.
| $/TB | Price | Capacity | Product | Condition | Store | Link |
|---|---|---|---|---|---|---|
| $124.99 | $124.99 | 1 TB | Kingston NV3 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | Used | eBay US +2 | View deal |
| $133.98 | $133.98 | 1 TB | Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 | Used | eBay US +1 | View deal |
| $148.00 | $148.00 | 1 TB | Samsung 970 EVO Plus 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen3 | Used | eBay US +2 | View deal |
| $150.00 | $150.00 | 1 TB | Samsung 990 PRO 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | Used | eBay US +1 | View deal |
| $159.99 | $159.99 | 1 TB | Kingston NV3 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | New | eBay US +2 | View deal |
| $198.00 | $198.00 | 1 TB | Crucial P3 1TB M.2 2280 NVMe (Gen3) M.2 2280 SSD · NVMe Gen3 | New | eBay US +2 | View deal |
| $200.00 | $200.00 | 1 TB | Samsung 990 PRO 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen4 | New | eBay US +2 | View deal |
| $219.99 | $219.99 | 1 TB | WD Blue SA510 1TB M.2 2280 SATA M.2 2280 SSD · SATA | New | eBay US +2 | View deal |
| $230.00 | $230.00 | 1 TB | Samsung 970 EVO Plus 1TB M.2 2280 NVMe M.2 2280 SSD · NVMe Gen3 | New | eBay US +2 | View deal |