Asus K42DR - RAM Upgrade Guide
The Asus K42DR laptop has two memory slots available for RAM upgrades. It can support a maximum of 8GB of memory. The type of RAM compatible with this model is DDR3 SDRAM, and it uses a SODIMM form factor, which is a compact design typically used in laptops. For best performance, it is suggested to use RAM with a clock speed of 1066MHz, also referred to as PC3-8500.
Asus K42DR Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus K42DR |
| Total memory slots | 2 |
| Maximum RAM | 8GB |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1066MHz (PC3-8500) |
| Voltage | 1.35V - 1.5V |
| Number of pins | 204-pin |
FAQ about Asus K42DR RAM
How much RAM can I put in my K42DR laptop?
Maximum is 8GB total. You've got 2 slots, so that's 4GB per slot max. Can't go higher even if you find bigger modules - the system won't recognize anything beyond 8GB.
What type of memory modules do I need for this laptop?
You need DDR3 SODIMM modules. These are the smaller laptop memory sticks, not the full-size desktop ones. Make sure it's DDR3, not DDR4 or DDR2 - they're not compatible and won't even fit in the slots.
What speed RAM should I get?
1066MHz (also labeled as PC3-8500) is what's recommended. You might find faster RAM like 1333MHz or 1600MHz on sale, and it'll work fine - it'll just run at 1066MHz anyway. Don't bother paying extra for faster speeds.
Can I mix different RAM sizes or do they need to match?
You can mix sizes like 2GB + 4GB if you want. For best performance, matching pairs (like 4GB + 4GB) are ideal for dual-channel mode, but mixing works fine if you're on a budget or already have one stick.
Do I need to remove the old RAM or can I just add more?
Depends what's already in there. If both slots are full, you'll need to remove at least one stick. If you've got one empty slot, just pop in the new module. Check what you have first before ordering.