Asus K40AD - RAM Upgrade Guide
The Asus K40AD laptop has two slots for memory upgrades, allowing for a maximum capacity of 6GB. It uses DDR2 SDRAM as the memory type, which comes in the form of SODIMM modules, designed specifically for compact devices like laptops. For optimal performance, it is suggested to use RAM with a clock speed of 800MHz, also referred to as PC2-6400.
Asus K40AD Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus K40AD |
| Total memory slots | 2 |
| Maximum RAM | 6GB |
| 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 K40AD RAM
How many memory slots does the Asus K40AD have?
It has 2 memory slots total - pretty standard for laptops from that era.
What's the maximum RAM I can install in this laptop?
You can go up to 6GB max. That's actually a bit odd since most systems support 4GB or 8GB, but this one caps at 6GB.
What type of RAM do I need to buy?
You need DDR2 SODIMM modules - the smaller laptop-sized 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 RAM, also labeled as PC2-6400. The laptop might work with slower speeds but 800MHz is what's recommended.
Can I mix different RAM sizes?
Yeah, you can mix sizes. Since max is 6GB, you could do a 4GB + 2GB combo. Just make sure both sticks are DDR2 800MHz.
Why can't I install 8GB if I have 2 slots?
The motherboard chipset has limitations - even if you put in 2x4GB sticks, the system will only recognize 6GB total. It's a hardware limitation.