Laptop RAM speed showing only 933mhz (1866)

[Steve Newb]

Hi guys, 
New to this forum. I recently decided to check my RAM speeds after upgrading from a single 8GB to 2x 8GB of the same Kingston stick. However, when checking CPUz and MSI afterburner in games, I noticed it would only clock at 933mhz (or 1866 mhz for DDR) instead of 2400 or 2666 which this laptop OE stick is rated for. I kinda would like to have it run at, at least 2400 mhz because there may or may not be fps to gain since this is an all-AMD laptop. 
Laptop info are as follows : 

Acer Nitro 5 AN515-43
CPU: Zen+ Ryzen 5-3550h with vega 8 graphics

GPU : RX560x 4GB variant

RAM :16 GB kingston KVR26S19S8/8

Storage : 512 GB WD SN520

[5x5]

Remove your stick and reset the bios the defaupt then check again.

[porina]

So one stick by itself runs at 2400, both sticks at 1866? They should be on different channels so there shouldn't be any difference due to loading. Run something like CPU-Z and look at the SPD of both, just to make sure both modules actually report they support 2400. Also check it is running dual channel.

 

Apart from that, check for bios updates, and any settings in bios although that tends not to be common in laptops.

[Steve Newb]

9 hours ago, 5x5 said:

Remove your stick and reset the bios the defaupt then check again.

I'll try doing this over the weekend. I actually recently updated the BIOS as I noticed there's a new update for it, thinking that it could be the source of the problem

 

9 hours ago, porina said:

So one stick by itself runs at 2400, both sticks at 1866? They should be on different channels so there shouldn't be any difference due to loading. Run something like CPU-Z and look at the SPD of both, just to make sure both modules actually report they support 2400. Also check it is running dual channel.

 

Apart from that, check for bios updates, and any settings in bios although that tends not to be common in laptops.

Apparently so. I am sure that it is being read as dual channel and I used CPU-Z prior to posting this. That's when I noticed that large disparity in speed. Looking as CPU-Z now, both slots are being read and is able to go up to 1333mhz. 

I will check the BIOS settings now and hopefully there's something that can be change. It's a little annoying although I'm not sure if I am losing any performance from it.

 

Edit, I have checked in CPU-Z and indeed running in dual channel mode.  I will try to reinstall the ram modules and do another reset this weekend.

[Steve Newb]

Hi guys, update on the issue. Reinstalled the RAM this morning, Tested it in both single and dual for both sticks and same results. 

I proceeded to reset the BIOS and making sure everything is up to date. 
Strangely, in games that uses almost 100% CPU, it showed the RAM clock hitting 1200 mhz. But once the scenario has been cleared, It went back down to 933 mhz.