Lenovo IdeaPad 330S (15-inch) Intel - RAM Upgrade Guide

The Lenovo 330S (15-inch) with Intel processor has two memory slots for RAM, though only one of these slots can be upgraded by the user. The maximum memory capacity for this laptop is 12GB, with up to 8GB installable in the accessible slot. It uses DDR4 SDRAM as the memory type, which comes in a small outline dual inline memory module (SODIMM) format. For best performance, the RAM should operate at a clock speed of 2400MHz, often labeled as PC4-19200.
Lenovo IdeaPad 330S (15-inch) Intel Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo IdeaPad 330S (15-inch) Intel |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 12GB (up to 8GB in user accessible slot) |
| Memory type | DDR4 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 2400MHz (PC4-19200) |
| Voltage | Low - 1.2V |
| Number of pins | 260-pin |
FAQ about Lenovo IdeaPad 330S (15-inch) Intel RAM
How many RAM slots does the Lenovo 330S 15-inch have?
It has 2 total slots, but only 1 is accessible for upgrades. The other slot has soldered memory that can't be removed.
What's the maximum RAM I can have in this laptop?
12GB total - that's 4GB soldered on the motherboard plus up to 8GB in the upgradeable slot.
What type of RAM do I need for the 330S?
You need DDR4 SODIMM modules running at 2400MHz (also called PC4-19200).
Can I add a 16GB stick to get 20GB total?
No, the upgradeable slot maxes out at 8GB. Even if you install a larger module, the system will only recognize 8GB.
Will faster RAM like 2666MHz or 3200MHz work?
It'll work but will automatically downclock to 2400MHz to match the system's speed limit. Save money and stick with 2400MHz modules.
Is it better to match the existing 4GB with another 4GB stick?
Not necessarily. You can install an 8GB stick for 12GB total. The system will run in flex mode - dual channel for the first 8GB and single channel for the remaining 4GB.