Asus X751LJ - RAM Upgrade Guide
The Asus X751LJ laptop has two memory slots for RAM, but only one of these slots can be upgraded by the user. The maximum amount of memory the laptop can support is 12GB, with up to 8GB possible in the slot that can be accessed for upgrades. The type of memory used is DDR3 SDRAM, and it comes in a small outline dual inline memory module (SODIMM) format. For best performance, the recommended clock speed for the RAM is 1600MHz, which corresponds to the PC3-12800 standard.
Asus X751LJ Memory Specifications & Maximum RAM Capacity
| Specification | Value |
|---|---|
| Laptop Model | Asus X751LJ |
| Total memory slots | 2 (1 not upgradeable) |
| Maximum RAM | 12GB (up to 8GB in user accessible slot) |
| Memory type | DDR3 SDRAM |
| Form factor | SODIMM (Small Outline Dual Inline Memory Module) |
| Recommended RAM clock speed | 1600MHz (PC3-12800) |
| Voltage | Low - 1.35V (DDR3L / PC3L) |
| Number of pins | 204-pin |
FAQ about Asus X751LJ RAM
How much RAM can I add to my X751LJ laptop?
You can add up to 8GB in the single accessible slot. The laptop has 4GB soldered on the motherboard that can't be changed, so maximum total is 12GB.
What type of RAM do I need for this laptop?
You need DDR3 SODIMM memory - the laptop-sized sticks, not the bigger desktop ones. Make sure it's DDR3, not DDR4 or DDR5.
What speed RAM should I buy?
Get 1600MHz RAM (also labeled as PC3-12800). The laptop might work with other speeds but 1600MHz is what's recommended.
Why can't I upgrade to 16GB total?
One of the two RAM slots has 4GB permanently soldered to the motherboard. You can only upgrade the second slot, which maxes out at 8GB, giving you 12GB total.
Can I remove the existing 4GB and replace it?
No, the 4GB is soldered directly onto the motherboard. You can only add to it by installing RAM in the empty slot.
Will faster RAM like 1866MHz or 2133MHz work?
It might work but will likely run at 1600MHz anyway since that's what the system supports. Save money and just get 1600MHz.