Problems with new ram

[themole]

Hi LTT

I wanted to buy more ram to my computer. So, I wanted to go the cheap way since I already had 16GB of memory I bought an additional 16GB.

However, I thought I bought the exact same memory modules as I already had. As it happens, they were a newer model of the same memory module.

 

The ones I currently have:

https://www.kingston.com/dataSheets/HX426C16FB2K2_16.pdf

 

The new ones I bought:

https://www.kingston.com/dataSheets/HX426C16FB3K2_16.pdf

 

The only difference I can find is the production number, other than that they seem the same.

The two sets work separately, but not together.

 

Not sure if this is solvable but any help would be appreciated.

 

 

My rig has this specs:

 

CPU: AMD Ryzen 5 2600X Six-Core Processor, 3600 Mhz,

BIOS version: 3003

Motherboard: ROG STRIX B450-F

GPU: ASUS GeForce GTX 1060 6GB TURBO

Memory: HyperX Fury DDR4 2666MHz 16GB

PSU: Corsair TX750M, 750W PSU

 

 

 

 

 

 

[Jurrunio]

I dont see why it wouldnt work and I will say the same even if it's an entirely different 2666MHz CL16 kit. This frequency and timings is just not demanding on the board nor CPU's memory controller.

 

If it somehow doesnt work, just manually type in 2666MHz 16-18-18-38 into the BIOS and let the BIOS train through more minor numbers (XMP profiles do force in some secondary timings which aren't specified in the spec sheets and could differ between kits).

[themole]

8 minutes ago, Jurrunio said:

I dont see why it wouldnt work and I will say the same even if it's an entirely different 2666MHz CL16 kit. This frequency and timings is just not demanding on the board nor CPU's memory controller.

 

If it somehow doesnt work, just manually type in 2666MHz 16-18-18-38 into the BIOS and let the BIOS train through more minor numbers (XMP profiles do force in some secondary timings which aren't specified in the spec sheets and could differ between kits).

I will get back to you after I have tried that. Cheers.

[St. Nick]

The newer revision seems to have a slightly higher voltage preset in the profile. Try forcing the XMP profile of the new kit and it should work. If not then it might just be that xmp does not always like a 4 slot configuration and setting the speed and timings manually should fix a lot of hassle with XMP as themole suggested.

[themole]

I seems that my profile is wrong then. It is set to 16-18-18-39. Seems like I cannot change it. (See attached picture)

[themole]

23 hours ago, St. Nick said:

The newer revision seems to have a slightly higher voltage preset in the profile. Try forcing the XMP profile of the new kit and it should work. If not then it might just be that xmp does not always like a 4 slot configuration and setting the speed and timings manually should fix a lot of hassle with XMP as themole suggested.

Update: I tried every combination possible. It seems to be that my 4th memory slot on my motherboard is not working! I get yellow led and 3 beeps. Indicates memory problems. I will try with some pressurized air tomorrow and see if there are some dust in the memory slot that causes the problem. So currently running 24GB of memory. I guess its not optimal.