Lenovo IdeaPad 3 15IIL05 upgrade guide
Part of the RAM is soldered, and one slot is open. 1 memory slot.
The SSD can be upgraded.
Parts that fit this laptop
Fit notes call out details that matter, including faster memory and SSD heatsinks.
Crucial T500 2TB
M.2 2280 · PCIe 4.0 NVMe · no heatsink · This drive supports PCIe 4.0. The laptop's slot is PCIe 3.0, so it runs at that speed.
Samsung 990 PRO 2TB
M.2 2280 · PCIe 4.0 NVMe · no heatsink · This drive supports PCIe 4.0. The laptop's slot is PCIe 3.0, so it runs at that speed.
WD_BLACK SN850X 1TB
M.2 2280 · PCIe 4.0 NVMe · no heatsink · This drive supports PCIe 4.0. The laptop's slot is PCIe 3.0, so it runs at that speed.
WD_BLACK SN850X 1TB with heatsink
M.2 2280 · PCIe 4.0 NVMe · with heatsink · This drive has a heatsink. We have not confirmed the clearance in this laptop, so check it before installing.
Full specs and sources
Each value shows its status and links to the manufacturer's documentation once verified.
| Spec | Value | Status | Source |
|---|---|---|---|
| Memory type | DDR4-2666 | Verified | |
| Memory slots | One DDR4 SO-DIMM slot | Verified | |
| Soldered memory | Soldered plus one slot | Verified | |
| Maximum memory | Up to 12GB | Verified | |
| SSD form factor | M.2 2242, M.2 2280 | Verified | |
| SSD interface | PCIe Gen 3 x4 NVMe | Verified | |
| Charger | 65W round tip (2-pin, wall-mount) AC adapter | Verified |
Did your upgrade work?
Real install feedback helps us flag surprises that a spec sheet misses.
Before you open the cover
Short answers to the details most likely to affect your purchase.
Can I use DDR5 RAM in the Lenovo IdeaPad 3 15IIL05?
No. This model takes DDR4 memory. DDR5 has a different notch and electrical standard, so it will not work.
Will DDR4-3200 work?
A compatible DDR4-3200 module may run at the laptop's supported 2666 MT/s. Check the module specifications and the return policy before buying.
Will upgrading void my warranty?
Warranty terms depend on your region and the cause of any damage. Read Lenovo's current terms and follow its service manual before working inside the laptop.