Hi there I have recently purchased the ASUS FX505DU model as listed in this post: https://www.ozbargain.com.au/node/497582
I have swapped the single 16gb ddr4-2666 stick with 2*8gb sk-hynix ddr-2400 stick with someone on facebook
However when I look into CPU-Z the D-ram frequency is constantly at 1866mhz(while charging) or 800mhz (unplugged), it does jump to 2133 or 2400mhz when I play games or when I do intense task occasionally
The info shown in SPD listed that the ram sticks are ddr-4 2400
Should the ram speed be constant at 2400mhz? I tried looking for the xmp option in bios but there is no luck
Does anyone has similar experience and are there any solution to it? Much appreciated!!!
Laptop RAM Running in Low Speed
Ldkwon10 on 22/11/2019 - 10:59
Comments
Yer actually I already notice fps improvement by just swapping it to dual channel ram even tho the dram frequency is slower than before. It is just the fact that the weird number shown in CPU z is annoying me lol
probably to open up the alleged frame rate improvements for vega iGPU running dual channel over single channel (Mrs machine is a 7 2700u and the vega 10 gives about 25% better frame rates using 2 x 8gb over the 1 x 16gb it came with).
I don't know if all MB or bios are created equal though so it could be thermal limits or a bios thing?
Wow !
i didn't know dram frequency able to adjust by itself on the fly
what technology is this ?
you sure you're looking at the right thing ?
I know it is weird that's why I'm asking… I was looking at the d ram frequency under memory profile in CPU z
Think the motherboard has to support XMP
DRAM is an acronym for Dynamically Randomising Available Megahertz, so its just doing its job.
It would be hot and overworking, just like me, if it was full speed all the time.
Stated RAM speeds are maximum rated speed for the chip, but actual speed depends on your CPU clock speed because they need to run in sync. That's a very summarised explanation.
What you're seeing is due to your CPU under clocking when not at load to save battery, and then boosting when under load.
Thanks for all the replies, good to know im not alone haha
Why? It's unlikely you'd see any difference in doing that
From what I know, Ryzen is very picky on it's ram