Lenovo IdeaPad S340 (15-inch / AMD) - RAM Upgrade Guide
The Lenovo S340 (15-inch, AMD version) has two memory slots for RAM, though only one of these can be upgraded by the user. The laptop supports a maximum of 20GB of memory, with up to 16GB possible in the user-accessible slot. It uses DDR4 SDRAM, which comes in a SODIMM format, a type of memory module designed for compact devices like laptops. For best performance, the RAM should operate at a clock speed of 2400MHz, which corresponds to the PC4-19200 standard.
Lenovo IdeaPad S340 (15-inch / AMD) Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo IdeaPad S340 (15-inch / AMD) |
| 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 S340 (15-inch / AMD) RAM
How much RAM can I add to my Lenovo S340 15-inch AMD model?
You can add up to 16GB in the single accessible memory slot. The laptop comes with 4GB soldered on the motherboard that can't be changed, giving you a maximum total of 20GB (4GB fixed + 16GB upgradeable).
Why does this laptop only have one upgradeable RAM slot?
One memory slot has RAM permanently soldered to the motherboard to save space and reduce costs. This is common in thin laptops. The second slot is a standard SODIMM slot you can access for upgrades.
What type of RAM do I need for the S340?
You need DDR4 SODIMM memory modules. Make sure to get laptop memory (SODIMM), not desktop RAM. The recommended speed is 2400MHz, also labeled as PC4-19200.
Can I use faster RAM than 2400MHz?
Yes, you can install faster RAM like 2666MHz or 3200MHz, but it will automatically downclock to run at 2400MHz to match the system's specifications. There's no performance benefit from buying faster memory.
Will adding more RAM void my warranty?
Generally no - RAM upgrades are considered user-serviceable on most laptops. Just be careful during installation and keep your original RAM module in case you need warranty service.
Is 20GB an odd amount of RAM?
It is unusual since you have 4GB soldered plus 16GB in the upgrade slot. This creates an unmatched pair, but modern systems handle this fine. You'll still see performance improvements over the base configuration.