Lenovo G400 - RAM Upgrade Guide

The Lenovo G400 laptop allows for RAM upgrades with two available memory slots. It can support a maximum of 16GB of memory. The type of RAM compatible with this model is DDR3 SDRAM, and it uses a SODIMM form factor, which is a compact design commonly used in laptops. For optimal performance, it is suggested to use RAM with a clock speed of 1600MHz, also referred to as PC3-12800.
Lenovo G400 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo G400 |
| Total memory slots | 2 |
| Maximum RAM | 16GB |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1600MHz (PC3-12800) |
| Voltage | Low - 1.35V (DDR3L / PC3L) |
| Number of pins | 204-pin |
FAQ about Lenovo G400 RAM
How much RAM can I put in my Lenovo G400?
You can install up to 16GB total. The laptop has 2 memory slots, so that's 8GB per slot maximum.
What type of RAM does the G400 use?
It uses DDR3 SODIMM modules - the smaller laptop-sized memory sticks, not the full-size desktop ones.
What speed RAM should I get?
1600MHz (also labeled as PC3-12800) is the recommended speed. The system might accept other speeds but 1600MHz is what works best.
Can I mix different RAM sizes?
Yes, you can use different sized modules like 4GB + 8GB, but for best performance try to match them. The system will still work with mismatched sizes though.
Do I need to upgrade both slots at once?
No, you can upgrade one slot at a time. If you have 4GB now, you could just add another 4GB or 8GB stick in the empty slot.
Will faster RAM like 1866MHz work?
It might physically fit and work, but the system will likely downclock it to 1600MHz anyway, so save your money and stick with 1600MHz modules.