Lenovo IdeaPad 330S-15AST - RAM Upgrade Guide
The Lenovo 330S-15AST laptop has two memory slots for RAM, but only one of them can be upgraded by the user. The maximum amount of memory the device can support is 20GB, with up to 16GB possible in the user-accessible slot. It uses DDR4 SDRAM as the memory type, and the RAM comes in a SODIMM format, which is a compact design commonly used in laptops. For best performance, the recommended clock speed for the RAM is 2400MHz, also referred to as PC4-19200.
Lenovo IdeaPad 330S-15AST Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo IdeaPad 330S-15AST |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 20GB (up to 16GB 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-15AST RAM
How much RAM can I put in the Lenovo 330S-15AST?
You can have up to 20GB total. The laptop has 4GB soldered on the motherboard that can't be changed, plus one slot where you can add up to 16GB. So 4GB built-in + 16GB added = 20GB maximum.
What type of RAM does the 330S-15AST use?
It uses DDR4 SODIMM memory - that's the smaller laptop-sized RAM sticks. You need 2400MHz speed (also called PC4-19200). Don't get desktop RAM by mistake - it won't fit.
Can I upgrade both RAM slots in this laptop?
No, only one slot is accessible for upgrades. The other slot has 4GB permanently soldered to the motherboard. This is pretty common in thin laptops to save space.
Is it worth upgrading from 8GB to 20GB?
Depends what you're doing. If you're just browsing and using office apps, 8GB is usually fine. But if you're running multiple programs, doing photo/video editing, or keeping tons of browser tabs open, jumping to 20GB will make everything feel snappier.
Will faster RAM like 2666MHz or 3200MHz work?
Yes, it'll work but it'll run at 2400MHz anyway. The laptop's chipset limits the speed to 2400MHz, so buying faster RAM is just wasting money. Stick with 2400MHz.