Asus K42JY - RAM Upgrade Guide

The Asus K42JY laptop supports RAM upgrades with a total of two memory slots available. It can handle a maximum of 8GB of memory. The type of memory used is DDR3 SDRAM, and it comes in the SODIMM form factor, which is 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 K42JY Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus K42JY |
| 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 K42JY RAM
How many RAM slots does my K42JY have?
Got 2 slots total. Pretty standard for this model.
What's the maximum RAM I can install?
8GB max - that's 4GB per slot. Can't go higher even if you find bigger modules.
What type of memory do I need?
DDR3 SODIMM - the smaller laptop memory sticks. Don't accidentally buy desktop RAM, it won't fit.
What speed RAM should I get?
1333MHz (also labeled PC3-10600). Faster RAM will work but just runs at 1333 anyway.
Can I mix different RAM sizes?
Yeah, like 2GB + 4GB works fine. Just won't run in dual channel mode, but still better than single stick.
Do I need to match RAM brands?
Nah, mixing brands usually works. Just keep the specs the same - DDR3 1333MHz.
Will faster RAM like 1600MHz work?
It'll work but automatically downclock to 1333MHz. Save money and just get 1333.
How do I check my current RAM setup?
Task Manager shows total RAM. CPU-Z gives details on slots used and speeds if you need more info.