Confusion about RAM
Confusion about RAM
When installing RAM, the two modules must match exactly, particularly in laptops.
Assuming the first stick isn't soldered, attempt to start with the 3200 stick. Mixing in different RAM options might help or hinder it. Results aren't certain. Consider swapping this one for a closer match in specs. A different cas latency could also work. Both will run at 2666, though.
Have you checked the HP website for this product code? The site notes that certain motherboards may not support memory modules from other brands, specifically mentioning CAS or density differences. Ensure all SO-DIMMs share identical part numbers for compatibility.
I don't think my explanation was clear. He barely grasps the idea of RAM, let alone details like pin setup, DIMM or SODIMM, buffered or not, non-ECC or ECC, etc. He bought a 2x8 GB Corsair DDR4 PC4 SODIMM without asking me. Clearly, he didn’t read enough into the Amazon description to notice the RAM speed was 2666 MHz and his purchase was 2400 MHz. HP’s site seems even less helpful when it comes to specific RAM needs for that model. Both speeds—2666 and 3200—were listed as compatible, though it’s not obvious whether that means “MHz.” The Crucial unit in the laptop is mostly unmarked; it has a part number and barcodes, but tracking it would be a hassle. He’s very hesitant to buy more RAM and disassemble the laptop again just to find out it’s the wrong type. I’m planning to buy him a Crucial 2x8 Gb 2666MHz kit and shift the responsibility to me instead of making him deal with more frustration.
He laptop displays only a model identifier at the base—no label present. We tried HP support’s “ID your computer” tool and reviewed the help center, but got no detailed info. The mysterious bar code and part number on the original Crucicial stick didn’t help us further. Updated August 14, 2020 by mmurley
Check compatibility for HP 15-dy1751ms with Crucial tools.
Find the right Kingston solutions for your 15 Series Notebook.