Use these legitimate sources:

: Look for a white or yellow barcode sticker on the RAM slots or near the CPU. It will have a model name like "M540SS" or "FM6".

If the board is inside a laptop or monitor, the model number on the external plastic shell (e.g., HP Pavilion g6 or ASUS VS248 ) is the best way to find a manual. 💡 Troubleshooting Without a Manual

Many Hannstar boards used in laptops have a code starting with "DA0" (e.g., DA0R53MB6E1 ). Searching for this specific code is the "holy grail" for finding schematics. 📥 Where to Download Schematics