Lenovo IdeaPad 3 15 Gen 8 Specs — RAM & SSD Upgrade Guide (2023)

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POST TITLE: Lenovo IdeaPad 3 15 Gen 8 Specs — RAM & SSD Upgrade Guide (2023)
SLUG: lenovo-ideapad-3-15-gen-8
CATEGORIES: Laptop Upgrades, Lenovo Laptops, RAM Upgrades, SSD Upgrades, Budget Laptops
FOCUS KEYWORD: Lenovo IdeaPad 3 15 Gen 8 upgrade DDR4
META DESCRIPTION: Lenovo IdeaPad 3 15 Gen 8 (2023) DDR4 RAM upgrade (up to 20GB), M.2 SSD upgrade, 2.5″ HDD bay, 45W USB-C charger, and upgrade guide.
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Lenovo IdeaPad 3 15 Gen 8 (2023) Overview

Lenovo’s IdeaPad 3 15 is a 15.6-inch budget-friendly mainstream laptop from 2023, powered by Intel 13th-gen U-series processors. A unique feature among 2024 budget models is its hybrid storage design: one SO-DIMM memory slot (half soldered, half upgradeable) and dual storage bays (M.2 NVMe and 2.5″ SATA HDD). This makes it an excellent value for users seeking maximum upgrade potential on a budget.

ComponentSpecification
ProcessorIntel Core i5-1335U (13th Gen, 10-core)
RAM Configuration1× SO-DIMM + 1 soldered (8GB on entry models)
Max RAM20GB (8GB soldered + 12GB SO-DIMM)
Storage512GB M.2 NVMe + optional 2.5″ HDD bay
Charger45W USB-C (USB Power Delivery)
Ports2× USB-C 3.2 Gen1, 2× USB-A 3.2, HDMI 2.0, headphone jack
Display15.6″ FHD (1920×1080), IPS 45% NTSC
Weight1.65 kg (3.6 lbs)

Memory Upgrade: Hybrid Soldered & Upgradeable

The IdeaPad 3 15 Gen 8 uses an unusual memory configuration: 8GB soldered to the motherboard + 1 SO-DIMM slot for upgradeable RAM. This hybrid approach allows 20GB maximum capacity while keeping base models affordable.

Factory configuration:

  • 8GB soldered (not removable)
  • 1 empty SO-DIMM slot (or 1× 4GB/8GB depending on SKU)

Upgrade path:

  • Add or replace the SO-DIMM with up to 12GB DDR4-3200
  • Maximum total: 20GB (8GB soldered + 12GB SO-DIMM)

Recommended SO-DIMM upgrades:

Single-channel warning: With only one SO-DIMM slot, performance runs in single-channel mode, reducing memory bandwidth by ~50% compared to dual-channel. This is acceptable for general use but noticeable in creative workloads.


Storage: Dual NVMe + HDD Bays

The IdeaPad 3 15 Gen 8 is unique in offering both M.2 NVMe and 2.5″ SATA HDD bays. You can use just NVMe, just HDD, or both — providing exceptional storage flexibility.

M.2 NVMe specifications:

  • Form factor: M.2 2280 (standard 42mm)
  • Speed: PCIe Gen3 (up to 3,500 MB/s) or Gen4 compatible
  • Capacity: Up to 2TB
  • Installation: 5 minutes, single screw

2.5″ HDD bay specifications:

  • Form factor: 2.5″ SATA (standard laptop HDD/SSD)
  • Speed: SATA (up to 550 MB/s for SSD, 150 MB/s for HDD)
  • Capacity: Up to 2TB
  • Installation: 10 minutes, bracket mounting

M.2 SSD recommendations:

2.5″ SSD recommendations (for secondary storage):

Hybrid storage strategy: Install a 512GB or 1TB M.2 Gen4 NVMe for fast OS/apps, then add a 2TB 2.5″ SATA SSD for media, projects, and backups. Total: 2.5–3TB usable storage.


Power Delivery & Charging

The IdeaPad 3 15 Gen 8 uses a 45W USB-C Power Delivery charger. It is compatible with any 45W or higher USB-C PD charger.

OEM charger: Lenovo 45W USB-C PD (model varies by region)

Compatible third-party chargers:


Ports & Connectivity

The IdeaPad 3 15 Gen 8 includes:

  • 2× USB-C 3.2 Gen1 (5 Gbps, power delivery on main port)
  • 2× USB-A 3.2 (5 Gbps, backward compatible)
  • HDMI 2.0 (1080p@60Hz, no 4K)
  • 3.5mm audio jack (legacy audio support)

Note: USB-C ports are USB 3.2 only, not Thunderbolt. Use standard USB-C hubs.

Recommended USB-C hub:


Upgrade Difficulty & Tools

RAM upgrade: Very easy (1/5 difficulty). Bottom panel removal gives direct SO-DIMM access. Module snaps in at 45 degrees.

M.2 SSD upgrade: Easy (2/5 difficulty). One screw holds the M.2 module in the slot.

2.5″ HDD/SSD upgrade: Moderate (2/5 difficulty). Requires bracket mounting and SATA cable connection. Clear spacing and labeling.

Tools needed:

  • Philips screwdriver (magnetic tip helpful)
  • Anti-static wrist strap (recommended)

Service documentation: Lenovo PSREF sheets available online. Panel removal is routine maintenance.


Recommended Upgrade Package


Frequently Asked Questions


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.

ProductWhy We Recommend ItAmazon UK
Corsair Vengeance DDR4 SO-DIMM 32GB (2×16GB) 3200MHzBest overall DDR4 upgrade kitView on Amazon UK
Kingston Fury Impact DDR4 SO-DIMM 32GB (2×16GB) 3200MHzReliable alternative with tight latencyView on Amazon UK
Crucial DDR4 SO-DIMM 16GB 3200MHzBudget single-stick upgradeView on Amazon UK
Samsung DDR4 SO-DIMM 32GB 3200MHzOEM-quality for business laptopsView on Amazon UK
Samsung 990 Pro 2TB NVMe M.2 2280Fastest consumer NVMe — ideal for gaming & editingView on Amazon UK
WD Black SN850X 2TB NVMeExcellent Gen4 speed with heatsink optionView on Amazon UK
Crucial P5 Plus 1TB NVMeGreat value Gen4 SSDView on Amazon UK
Kingston NV2 1TB NVMeBudget-friendly with solid reliabilityView on Amazon UK

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

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