ddr4 2666 memory running at 2400

[MarcoDez]

Generally the new PC HP DB0035NL is faster, except when I import large XML files with a translation tool and in this case the factor compared to the old PC is about 50% higher. For example, the export is definitely faster. For this reason I cannot understand which tool I can use for a reliable performance benchmark, possibly not compared to the average market level but compared to my previous PC.

[RafiAhmed]

Hello, MarcoDez! I also own a laptop (HP 15-db0188au) with Ryzen 5. It's mentioned in AMD's website that Ryzen 5 supports max. 2400 MHz. But, it seems that I have the same 4 GB 2666 MHz Samsung RAM module installed by default and it's running at 2400 MHz just like you.

I want to install another 4Gb of RAM to my laptop but I'm really confused about what frequency (2400/2666) I should buy to make it work in dual channel mode.

I see you already have another RAM module installed in slot 2. Can you please share the details or the slot #2 in SPD page of CPU z with me?

[Mak75]

So what have you finally done?  Have you upgraded the RAM and what type did you use. I have a similar laptop and I am thinking of upgrading at some point in the future so your experience is valuable. 

[Ckchong1979]

Hi I having same issue 2666 running in 2400 mhz...  What I found out is... After update Windows 10 memory speed reduce to 2400 mhz... Before that is running 2667... I don't thing so is hardware limitations, just don't why latest win10 will limit it to 2400

[LordT]

Well I finally took out the 8gb 2666 sk hynix module the laptop came with, got 2 8gb 2666 kingston hyperx, put them in, worked just fine, running at 2400, but that's the motherboards fault.

[Ckchong1979]

2400mhz ???? should be 2666mhz ...