Lenovo IdeaPad ideapad S145-15AST - RAM Upgrade Guide

The Lenovo IdeaPad S145-15AST has a single memory slot available for RAM upgrades. It can support a maximum of 8GB of memory. The type of RAM compatible with this laptop is DDR4 SDRAM, and it uses a SODIMM form factor, which is a compact memory module commonly used in laptops. For optimal performance, the recommended clock speed for the RAM is 2133MHz, often categorized as PC4-17000.
Lenovo IdeaPad ideapad S145-15AST Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo IdeaPad ideapad S145-15AST |
| Total memory slots | 1 |
| Maximum RAM | 8GB |
| Memory type | DDR4 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 2133MHz (PC4-17000) |
| Voltage | Low - 1.2V |
| Number of pins | 260-pin |
FAQ about Lenovo IdeaPad ideapad S145-15AST RAM
How many RAM slots does my S145-15AST have?
Just one slot total. No dual channel option here.
What's the maximum RAM I can install?
8GB is the ceiling. Won't recognize anything larger even if you try.
What type of RAM do I need to buy?
DDR4 SODIMM - the smaller laptop memory sticks, not the full-size desktop ones.
What speed RAM should I get?
2133MHz is what works best. Higher speeds will just downclock to 2133 anyway.
Can I add a second RAM stick for dual channel?
Nope, single slot only. Whatever's in there has to come out if you're upgrading.
Is the RAM soldered or removable?
It's removable - uses a standard SODIMM slot you can access.
Will faster RAM like 2400MHz or 2666MHz work?
It'll work but run at 2133MHz. Save money and just get 2133MHz.
What happens to my old RAM when upgrading?
You'll need to remove it completely since there's only one slot. Maybe keep it as a backup or sell it.