Asus K43SJ - RAM Upgrade Guide
The Asus K43SJ laptop has two memory slots available for RAM upgrades, supporting a maximum capacity of 8GB. It uses DDR3 SDRAM as the memory type, which comes in a SODIMM format, a compact design suitable for laptops. For optimal performance, it is suggested to use RAM with a clock speed of 1333MHz, also referred to as PC3-10600.
Asus K43SJ Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus K43SJ |
| Total memory slots | 2 |
| Maximum RAM | 8GB |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1333MHz (PC3-10600) |
| Voltage | 1.35V - 1.5V |
| Number of pins | 204-pin |
FAQ about Asus K43SJ RAM
How many RAM slots does my K43SJ have?
It has 2 memory slots total. Pretty standard for this model.
What's the maximum RAM I can install?
You can go up to 8GB total. That means either two 4GB sticks or one 8GB stick if you want to leave a slot free.
What type of RAM do I need to buy?
You need DDR3 SODIMM modules. Make sure it's SODIMM (the smaller laptop memory) and not regular desktop RAM which won't fit.
What speed RAM should I get?
Look for 1333MHz or PC3-10600 - they're the same thing, just different ways of labeling the speed. Your laptop will run this speed properly.
Can I mix different RAM sizes?
Yes, you can mix like 2GB + 4GB, but matching sizes (like 4GB + 4GB) usually gives better performance since it enables dual-channel mode.
Will faster RAM like 1600MHz work?
It'll work but will automatically slow down to 1333MHz to match what your system supports. No point paying extra for speed you can't use.
Do I need to remove the existing RAM?
Depends what's already installed. If you have one stick, you can just add another. If both slots are full with smaller modules, you'll need to replace one or both.