If you are searching for a replacement motherboard for your Acer laptop, you’ve likely come across the LA-7912P (Q5WVH) board. This guide covers everything you need to know before purchasing: which laptop models it fits, the key chip variants, what to check when buying used, and where to find new units.
What Is the LA-7912P?
The LA-7912P is the board code for the Q5WVH motherboard, manufactured by Quanta Computer for Acer. It uses the Intel HM77 Express chipset and supports Intel 3rd generation (Ivy Bridge) processors. It is one of the most widely serviced laptop boards in Latin America and Asia due to the sheer number of units sold.
Compatible Laptop Models
| Model | Notes |
|---|---|
| Acer Aspire E1-571 | Most common. Intel only (no discrete GPU) |
| Acer Aspire E1-571G | Includes NVIDIA GeForce GT 710M / 620M GPU |
| Acer Aspire V3-571 | Larger chassis, same board |
| Acer Aspire V3-571G | With NVIDIA discrete GPU |
| Acer Aspire V3-531 | Intel Pentium / Celeron variants |
| Acer Aspire E1-531 | Lower-end CPU variants (Pentium/Celeron) |
Chipset Variants: SJTNV vs SLJ8E
This is the most critical detail when ordering a replacement. The LA-7912P comes in two chipset variants:
- SJTNV: Intel BD82HM77 PCH (Platform Controller Hub). Used on boards designed for Core i3/i5/i7 Ivy Bridge processors.
- SLJ8E: Intel NM70 chipset. Used on boards with lower-end Celeron/Pentium CPUs.
These chipsets are not interchangeable. Installing the wrong variant may result in the board not initializing correctly, even if the connector layout looks identical. Always match the chipset to your original board.
What to Check When Buying a Used Board
- Ask for photos of the board, specifically around the chipset area and BIOS chip.
- Look for signs of liquid damage (corrosion near connectors, discolored PCB).
- Confirm the board has been tested — ask for “power-on” confirmation.
- Check that the RAM slots, CPU socket, and connectors are undamaged.
Where to Buy the LA-7912P
You can find new and tested LA-7912P boards on AliExpress. The listing below ships to Brazil and includes seller warranty:
👉 Buy the LA-7912P Motherboard on AliExpress
Need the BIOS File, Schematics or Boardview?
Before attempting board-level repairs, having the schematic and boardview is essential. We carry digital repair files for the LA-7912P and all compatible models in our Mercado Livre store:
👉 LA-7912P Schematics and BIOS Files on Mercado Livre
These files are delivered digitally and are used by professional technicians for component-level diagnosis and repair.