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How to Upgrade Your Lenovo Ideapad S145‑15IGM for Better Performance

By Jonathan Pierce 14 min read 4418 views

How to Upgrade Your Lenovo Ideapad S145‑15IGM for Better Performance

Owning a Lenovo Ideapad S145‑15IGM is great for everyday tasks, but as software gets hungrier, the stock setup can start to feel a bit sluggish. The good news? You don’t need to buy a whole new laptop. With a few relatively inexpensive parts and a bit of patience, you can give this notebook a noticeable boost. Below is a practical, step‑by‑step guide that covers the most effective upgrades and tips for getting the most out of your machine.

What You Can Actually Upgrade

The S145‑15IGM isn’t as modular as a desktop, but it does offer a handful of upgrade paths that most owners overlook:

  • Memory (RAM) – The laptop ships with 4 GB or 8 GB DDR4 modules. Adding a second stick can double capacity up to 12 GB (depending on the motherboard limit).
  • Storage – A 2.5‑inch HDD is standard, but swapping it for an SSD—or adding a SATA‑III SSD alongside the existing drive—dramatically cuts boot and load times.
  • Battery – If you’re often on the move, a higher‑capacity replacement can extend runtime without changing the internals.
  • Thermal Paste – Reapplying quality thermal compound can lower CPU/GPU temps, helping sustain performance under load.

Preparation: Tools and Safety Checks

Before you start, gather a few essentials:

  • Small Phillips #0 screwdriver
  • Plastic pry tool (to avoid scratching the chassis)
  • Anti‑static wrist strap (optional but recommended)
  • Compressed air can for dust removal

Power down the laptop, unplug the charger, and remove the bottom‑panel screws. Keep the screws organized—different lengths often correspond to different mounting points.

Step‑by‑Step RAM Upgrade

1. Locate the RAM slot

After removing the bottom cover, you’ll see a single DIMM slot with a 4 GB module already installed. The slot is easy to spot—just a thin, long slot with two metal clips on either side.

2. Choose the right module

Lenovo specifies DDR4‑2400 MHz. A 4 GB × 2 GB stick works fine, but for smoother multitasking, a 8 GB stick (matching the existing speed) is ideal. Make sure it’s a non‑ECC, unbuffered module.

3. Install

Gently angle the new module into the slot, pressing until the clips click into place. Give it a light wiggle to confirm a secure fit.

4. Test

Replace the bottom panel, re‑insert the screws, and boot the laptop. Right‑click My ComputerProperties to verify the upgraded memory shows up.

Step‑by‑Step SSD Swap

1. Find the drive bay

The S145‑15IGM uses a standard 2.5‑inch SATA bay. It’s located near the RAM slot, held in place by a single screw.

2. Choose an SSD

All mainstream SATA III SSDs (e.g., Samsung 870 EVO, Crucial MX500) will fit. Look for capacities of at least 256 GB; larger drives bring down cost per gigabyte.

3. Transfer data

If you want to keep your OS, clone the existing HDD to the new SSD using free tools like Macrium Reflect. Otherwise, you can do a fresh Windows install—often the cleanest route.

4. Install the SSD

Slide the SSD into the bay, secure the screw, and reconnect the SATA cable (it’s usually a single plug that stays in place). Re‑assemble the laptop and power on.

Optional: Refresh the Thermal Paste

Over time, the factory‑applied thermal paste can dry out, causing temperatures to creep up. Replacing it is straightforward:

  • Remove the back panel and locate the heat sink covering the CPU/GPU.
  • Unscrew the heat sink, gently lift it, and clean the old paste with isopropyl alcohol.
  • Apply a pea‑sized dot of high‑quality thermal paste (e.g., Arctic MX‑4) and reseat the heat sink.

This simple step can shave several degrees off peak temps, which translates to steadier performance during long sessions.

Power Management Tweaks

Even after hardware upgrades, software settings still matter. Here are a few quick adjustments:

  • Set the Windows power plan to “High performance” or create a custom plan that balances CPU boost with battery life.
  • Disable unnecessary startup programs via Task Manager → Startup.
  • Update the BIOS and chipset drivers from Lenovo’s support site—new firmware often improves power handling.

Cost vs. Benefit Snapshot

UpgradeTypical Cost (USD)Performance Gain
8 GB DDR4 RAM$30–$45Noticeable smoother multitasking, less lag in heavy browsers.
500 GB SATA SSD$55–$70Boot times drop from 30 s to under 10 s; applications launch instantly.
Thermal paste refresh$5–$10 (paste)5–10 °C lower temps, modest boost to sustained CPU speed.

When to Call It Quits

If you’ve maxed out RAM (12 GB) and are already on a fast SSD, yet you still feel constrained, it may be time to consider a newer laptop. The Ideapad S145‑15IGM’s integrated graphics are fine for office work and casual media, but they won’t keep up with the latest gaming titles or heavy video rendering. In that scenario, budgeting for a replacement could be more sensible than continuing to chase marginal gains.

That said, for most students, professionals, and home users, the upgrades outlined above will extend the notebook’s useful life by at least two to three years—well beyond the typical warranty period.

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Written by Jonathan Pierce

Jonathan Pierce is a Chief Correspondent with over a decade of experience covering breaking trends, in-depth analysis, and exclusive insights.