Question I bought the supposedly same RAM, but there are differences ?

[hunterczech]

Hey,
In 2021 I purchased Kingston Fury KF3200C16D4/16GX RAM (2x 16GB RAM pieces) and ran them in dual channel. Today, 4 years later I purchased the same Kingston Fury KF3200C16D4/16GX RAM, however there are differences in timings, and also CPU-Z reports that these 2 new sticks of RAM as being Single Channel for some reason.

There doesn't seem to be any stability issues (yet), but I didn't do any thorough tests yet..

Should I just take those RAMs out and refund it? Do you think it will cause troubles? Also can somebody explain me why the two RAM sticks that are in dual channel slot are running single channel? Can some RAM expert tell me what's going on?

This is screenshot from CPU-Z that shows timings etc:
https://i.ibb.co/KFdd8Cv/ram.png

The reason I want 64 gigs is for productivity tasks like working with Unreal Engine.

Specs:
MSI B450 Tomahawk Max
Ryzen 5700X3D

Thanks.

 

[Lutfij]

KF3200C16D4/16GX
Looking up that SKU/Part Number, I noticed it has HyperX on it's heatspreader. HP bought out the rights to the HyperX naming/branding in 2021, so I'm assuming the rams you purchased later are Fury in name but the IC's underneath are not the same, while also missing out on the HyperX branding, which is different to the HyperX Fury ram kit you initially purchased for your build. You can confirm or refute the above by passing on images of all your ram sticks showing both sides of the ram.

Turn your attention to where it's mentioned Samsung and Micron, those are two different IC makers/vendors.

The reason I want 64 gigs is for productivity tasks like working with Unreal Engine.
You should return your newly purchased ram kit, then source a 2x32GB ram kit, here's a shortlist;
https://pcpartpicker.com/products/memory/#b=ddr4&S=3600,8400&Z=65536002&xcx=0&sort=cas&page=1

MSI B450 Tomahawk Max
Look for a DDR4-3200MGHz/DDR4-3600MHz tight latency ram kit akin to this;
https://pcpartpicker.com/product/kJ...2-gb-ddr4-3600-cl16-memory-f4-3600c16d-64gtzn
and make sure you're on the latest BIOS version before dropping in the new ram kit.

Also, this means you sell the exist ram kit after you've gotten stability with your G.Skill ram kit listed above. Someone else could probably find a cheaper ram kit for your B450 chipset motherboard/platform.

 

[hunterczech]

KF3200C16D4/16GX
Looking up that SKU/Part Number, I noticed it has HyperX on it's heatspreader. HP bought out the rights to the HyperX naming/branding in 2021, so I'm assuming the rams you purchased later are Fury in name but the IC's underneath are not the same, while also missing out on the HyperX branding, which is different to the HyperX Fury ram kit you initially purchased for your build. You can confirm or refute the above by passing on images of all your ram sticks showing both sides of the ram.

Turn your attention to where it's mentioned Samsung and Micron, those are two different IC makers/vendors.

The reason I want 64 gigs is for productivity tasks like working with Unreal Engine.
You should return your newly purchased ram kit, then source a 2x32GB ram kit, here's a shortlist;
https://pcpartpicker.com/products/memory/#b=ddr4&S=3600,8400&Z=65536002&xcx=0&sort=cas&page=1

MSI B450 Tomahawk Max
Look for a DDR4-3200MGHz/DDR4-3600MHz tight latency ram kit akin to this;
https://pcpartpicker.com/product/kJ...2-gb-ddr4-3600-cl16-memory-f4-3600c16d-64gtzn
and make sure you're on the latest BIOS version before dropping in the new ram kit.

Also, this means you sell the exist ram kit after you've gotten stability with your G.Skill ram kit listed above. Someone else could probably find a cheaper ram kit for your B450 chipset motherboard/platform.

Thank you for reply! I dismounted the RAM and will be returning it. I don't want to risk stability issues or loss of performance.

 

[SkyNetRising]

In 2021 I purchased Kingston Fury KF3200C16D4/16GX RAM (2x 16GB RAM pieces) and ran them in dual channel.
Today, 4 years later I purchased the same Kingston Fury KF3200C16D4/16GX RAM, however there are differences in timings,
and also CPU-Z reports that these 2 new sticks of RAM as being Single Channel for some reason.

You're looking in wrong tab.
SPD tab shows rank of ram modules. Rank is basically, if ram module is single sided or double sided.
Rank does not mean the same thing as dual channel/single channel mode.

Look in Memory tab. That will tell you, if ram is running in single or dual channel mode.

 

[geofelt]

The ram kits are different and will have different XMP profiles embedded.
Try increasing the ram voltage in the bios from 1.35v to a higher number in small increments.
Then test with memtest.
It boots from a usb stick and does not use windows.
You can download it here:

Memtest86+ | The Open-Source Memory Testing Tool

Memtest86+ is an advanced, free, open-source, stand-alone memory tester for 32- and 64-bit computers (UEFI & BIOS supported)

memtest.org

If you can run a full pass with NO errors, your ram should be ok.

Running several more passes will sometimes uncover an issue, but it takes more time.
Probably not worth it unless you really suspect a ram issue.

If all else fails, replace with a explicitly supported kit of 64gb.

 

[hunterczech]

You're looking in wrong tab.
SPD tab shows rank of ram modules. Rank is basically, if ram module is single sided or double sided.
Rank does not mean the same thing as dual channel/single channel mode.

Look in Memory tab. That will tell you, if ram is running in single or dual channel mode.

This is what's inside Memory Tab:

https://imgur.com/6mL2lge

View: https://i.imgur.com/6mL2lge.png

 

[SkyNetRising]

This is what's inside Memory Tab:

It's working in dual channel mode.
2x64bit = dual channel

You should set Command rate to 2T.
With 4 modules 1T mode often is unstable.