Lenovo G40-30 - RAM Upgrade Guide
The Lenovo G40-30 laptop 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 DDR3 SDRAM, and it uses a SODIMM format, which is a smaller type of memory module commonly used in laptops. For optimal performance, the recommended clock speed for the RAM is 1600MHz, also referred to as PC3-12800.
Lenovo G40-30 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo G40-30 |
| Total memory slots | 1 |
| Maximum RAM | 8GB |
| 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 G40-30 RAM
How many RAM slots does the Lenovo G40-30 have?
Just one slot unfortunately. That means you can't add more RAM alongside what's already there - you'll need to replace the existing module entirely.
What's the maximum RAM I can put in this laptop?
8GB is the ceiling. Even if you find a 16GB stick that fits, the system won't recognize more than 8GB.
What type of RAM do I need?
You need DDR3 SODIMM - that's the smaller laptop-sized memory stick, not the larger desktop kind. Make sure it's DDR3, not DDR4 or DDR5, as they're not compatible.
What speed RAM should I get?
1600MHz (also labeled as PC3-12800) is the recommended speed. You could technically use slower 1333MHz RAM and it would work, but why leave performance on the table? Faster RAM like 1866MHz will also work but will automatically downclock to 1600MHz.
Can I mix different RAM speeds or brands?
Since there's only one slot, mixing isn't an issue - you're replacing, not adding. Just get a single 8GB stick and you're good to go.
Is upgrading from 4GB to 8GB worth it?
Definitely helps with multitasking and running modern browsers with lots of tabs. Windows 10/11 runs much smoother with 8GB. Just don't expect miracles - it's still an older system with other limitations.