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This guide covers everything you need to know about upgrading the RAM and storage on the Lenovo ThinkPad P51 (2017). Whether you want faster performance, more memory, or additional storage space, we have the compatibility details and recommended upgrades below.
Lenovo ThinkPad P51 — Quick Specs
| Specification | Details |
|---|---|
| Model | Lenovo ThinkPad P51 |
| Year | 2017 |
| Type | Workstation |
| Processor | Intel Core i7-7820HQ / Xeon E3-1505M |
| RAM Type | DDR4 |
| RAM Form Factor | SODIMM |
| Max RAM | 64GB |
| RAM Slots | 4 slots (user-accessible) |
| Storage Type | M.2 NVMe + 2.5" SATA |
| Storage Slots | 2x M.2 2280 + 1x 2.5" SATA |
Lenovo ThinkPad P51 Memory (RAM) Upgrade
The Lenovo ThinkPad P51 supports DDR4 SODIMM memory modules with a maximum capacity of 64GB. It has 4 slots (user-accessible).
Recommended RAM Upgrades
| Recommended RAM | Buy |
|---|---|
| Corsair Vengeance DDR4 SODIMM 32GB (2x16GB) 3200MHz | Check Price |
| Kingston Fury Impact DDR4 16GB (2x8GB) 3200MHz SODIMM | Check Price |
| Crucial DDR4 8GB 3200MHz SODIMM | Check Price |
| Samsung DDR4 16GB 3200MHz SODIMM | Check Price |
Lenovo ThinkPad P51 Storage (SSD/HDD) Upgrade
The Lenovo ThinkPad P51 supports M.2 NVMe + 2.5" SATA storage with 2x M.2 2280 + 1x 2.5" SATA.
Recommended SSD Upgrades
| Recommended SSD | Buy |
|---|---|
| Samsung 970 EVO Plus 1TB NVMe M.2 | Check Price |
| WD Black SN770 1TB NVMe M.2 | Check Price |
| Crucial P3 Plus 500GB NVMe M.2 | Check Price |
| Samsung 870 EVO 1TB 2.5" SATA | Check Price |
| Crucial MX500 500GB 2.5" SATA | Check Price |
Upgrade Difficulty
The Lenovo ThinkPad P51 has an upgrade difficulty rating of Moderate. Most users can upgrade the RAM and SSD with basic tools (Phillips screwdriver). Always disconnect the battery before performing any internal upgrades.
Upgrade Tips for the Lenovo ThinkPad P51
- Back up all data before replacing or adding storage drives.
- Use an anti-static wrist strap to prevent damage to components.
- Match RAM type (DDR4 SODIMM) for best compatibility; the P51 supports memory speeds up to DDR4-2400.
- Check your current configuration in the BIOS before ordering parts.
- Consider cloning your existing drive to a new SSD for a seamless transition.
Related Guides
Frequently Asked Questions
What is the maximum RAM for the Lenovo ThinkPad P51?
The Lenovo ThinkPad P51 supports a maximum of 64GB of DDR4 SODIMM memory across 4 slots (user-accessible).
What type of SSD does the Lenovo ThinkPad P51 use?
The Lenovo ThinkPad P51 uses M.2 NVMe + 2.5" SATA storage with 2x M.2 2280 + 1x 2.5" SATA.
Can I upgrade the RAM in the Lenovo ThinkPad P51?
Yes, the Lenovo ThinkPad P51 has 4 slots (user-accessible) supporting DDR4 SODIMM modules up to 64GB total.
Is the Lenovo ThinkPad P51 worth upgrading?
Upgrading the RAM and SSD in the Lenovo ThinkPad P51 can significantly improve performance, especially if you are running out of memory or storage space.
Related Lenovo Upgrade Guides
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- Best RAM for Lenovo ThinkPad in 2026
- Lenovo ThinkSystem SR665 V3 RAM & SSD Upgrade Guide (2023)
- Lenovo ThinkSystem SR665 RAM & SSD Upgrade Guide (2020)
- Lenovo ThinkSystem SR645 RAM & SSD Upgrade Guide (2020)
- Lenovo Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.
Helpful Guides
Upgrades that fit the Lenovo ThinkPad P51
What fits: Memory: DDR4-2400 varies by config, 4 user slots, up to 64GB · Storage: 2x M.2 2280 NVMe PCIe 3.0; 2.5in SATA drive supported · Charger: slim-tip 170W
Spec source: psref.lenovo.com (checked 26 Sep 2026).
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M.2 2280 NVMe SSDs that fit
2.5in SATA SSDs for the drive bay
Free download: The 2026 Laptop RAM Upgrade Compatibility Cheat Sheet
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