Asus K40IJ - RAM Upgrade Guide
The Asus K40IJ laptop has two memory slots available for RAM upgrades. It supports a maximum memory capacity of 4GB. The type of memory used is DDR2 SDRAM, and it comes in a SODIMM form factor, which is a compact design commonly used in laptops. For optimal performance, the recommended RAM clock speed is 800MHz, also referred to as PC2-6400.
Asus K40IJ Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus K40IJ |
| Total memory slots | 2 |
| Maximum RAM | 4GB |
| Memory type | DDR2 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 800MHz (PC2-6400) |
| Voltage | 1.8V |
| Number of pins | 200-pin |
FAQ about Asus K40IJ RAM
What's the max RAM I can put in my K40IJ laptop?
You can go up to 4GB total. The laptop has 2 slots, so that's typically 2x2GB sticks.
What type of memory do I need for this laptop?
You need DDR2 SODIMM modules - the smaller laptop-sized RAM sticks, not the full-size desktop ones. Make sure it's DDR2, not DDR3 or DDR4.
What speed RAM should I get?
Look for 800MHz DDR2, also labeled as PC2-6400. The laptop might work with slightly different speeds but 800MHz is the recommended spec.
Can I just add one stick or do I need to replace both?
You can add just one stick if there's an empty slot. Check what's already installed first - if you have 1x2GB, you can add another 2GB. If you already have 2x1GB and want 4GB total, you'll need to replace both.
Will faster RAM like 1066MHz work?
It might work but will likely run at the slower 800MHz speed anyway. No point paying extra for faster RAM since the system won't use the extra speed.
Can I upgrade beyond 4GB?
No, 4GB is the hard limit for this model. Even if you install larger modules, the system will only recognize 4GB total.