Lenovo G40-45 - RAM Upgrade Guide
The Lenovo G40-45 laptop has two slots available for memory upgrades, allowing for a total capacity of up to 16GB. It uses DDR3 SDRAM as the memory type, which comes in the SODIMM format, a smaller design suited for laptops. For optimal performance, the recommended clock speed for the RAM is 1600MHz, often labeled as PC3-12800.
Lenovo G40-45 Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo G40-45 |
| 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 G40-45 RAM
How much RAM can I put in a Lenovo G40-45?
Maximum is 16GB total. The laptop has 2 memory slots, so you can install up to 8GB per slot.
What type of memory does the G40-45 use?
It uses DDR3 SODIMM modules - the smaller laptop-sized RAM sticks. Make sure you don't accidentally buy desktop RAM which won't fit.
What speed RAM should I get for the G40-45?
1600MHz (also labeled as PC3-12800) is the recommended speed. The system might accept other speeds but 1600MHz will work best.
Can I mix different RAM sizes in the two slots?
Yes, you can mix sizes like 4GB + 8GB to get 12GB total. But for best performance, matching pairs (like 8GB + 8GB) work better since they can run in dual-channel mode.
Do I need to remove the old RAM when upgrading?
Depends on your current setup. If you already have 2 sticks installed, you'll need to remove at least one to add more. If you only have 1 stick, you can just add another in the empty slot.
Is it worth upgrading from 4GB to 8GB or more?
Definitely. 4GB is pretty minimal these days - you'll notice better multitasking and less lag with 8GB or more, especially if you keep lots of browser tabs open or use multiple programs at once.