Lenovo ThinkPad T400 (2764) - RAM Upgrade Guide
The Lenovo T400 (model 2764) can be upgraded to improve its memory performance. It has two memory slots available for RAM installation, allowing for a maximum memory capacity of 8GB. The type of memory compatible with this laptop is DDR3 SDRAM, and it uses a SODIMM form factor, which is a smaller type of memory module designed for laptops. For optimal performance, the recommended RAM clock speed is 1066MHz, often labeled as PC3-8500.
Lenovo ThinkPad T400 (2764) Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Lenovo ThinkPad T400 (2764) |
| 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 Lenovo ThinkPad T400 (2764) RAM
How much RAM can I put in a T400?
Maximum is 8GB total - that's using both memory slots with 4GB modules in each one.
What type of memory does the T400 use?
It takes DDR3 SODIMM modules - the laptop-sized memory sticks, not the full desktop ones.
How many memory slots does it have?
Two slots total. You can run with just one filled, but using both slots gives you dual-channel which is a bit faster.
What speed RAM should I get?
1066MHz (also called PC3-8500) is what's recommended. The system might work with faster RAM but it'll just run it at 1066MHz anyway.
Can I mix different size memory modules?
Yes, you can use different sizes like 2GB + 4GB to get 6GB total. Just know that dual-channel performance only works on the matching portion.
Do I need to upgrade both slots at once?
No, you can upgrade one at a time. If you've got 2x2GB now, you could replace just one with a 4GB stick to get 6GB total.