[SOLVED] RAM DDR4 3200 but max bandwidth 2400?

[Raikko Kiminen]

Hello, I have just bought 2x8 DDR4 3200MHz RAM sticks but they were automatically set to 2400 in BIOS. I tried changing to 3200 and 2666 but it still runs at 2400 (reading from the CPU-Z). Why is this and how to solve it?

MOBO : MSI B450
CPU: R5 2600X
RAM: 2xDDR4 8GB 3200MHz Kingston HyperX Predator CL16

 

[julienruc]

Make sure that you've enabled the XMP 2.0 profile in the BIOS. Also, make sure your BIOS is updated and check on the manufacturer's website if the motherboard even supports that speed (although all B450 boards should support it no problem).

 

[Raikko Kiminen]

Make sure that you've enabled the XMP 2.0 profile in the BIOS. Also, make sure your BIOS is updated and check on the manufacturer's website if the motherboard even supports that speed (although all B450 boards should support it no problem).

https://www.msi.com/Motherboard/B450-TOMAHAWK-MAX/Specification
I checked here and my CPU is listed in R5 to support 3200.

Anb about XMP I need help, because I have A-XMP and then 1 or 2.

 

[WildCard999]

If the memory is in slots A1/B1 swap them to A2/B2 and then enable AXMP.

 

[Raikko Kiminen]

If the memory is in slots A1/B1 swap them to A2/B2 and then enable AXMP.

A-XMP is enabled already. And switching to 1-3 from 2-4 does no good. PC fails to boot, it prompts straight away to switch back to 2-4 slots from 1-3 that I tried.

 

[julienruc]

A-XMP is enabled already. And switching to 1-3 from 2-4 does no good. PC fails to boot, it prompts straight away to switch back to 2-4 slots from 1-3 that I tried.

Just to be sure, the correct slots should be 2nd and 4th (4th being the furthest slpt from the CPU). You're saying in this position ot doesn't post at all?

Did you buy a dual RAM kit or two individual 8Gb RAM sticks?

Also when you OC RAM beyond 2400Mhz, you also need to increase voltage from 1.2v to 1.35v.

Can you also send the full motherboard model please.

 

[Raikko Kiminen]

Just to be sure, the correct slots should be 2nd and 4th (4th being the furthest slpt from the CPU). You're saying in this position ot doesn't post at all?

Did you buy a dual RAM kit or two individual 8Gb RAM sticks?

Also when you OC RAM beyond 2400Mhz, you also need to increase voltage from 1.2v to 1.35v.

Can you also send the full motherboard model please.

My RAM sticks are in 2nd and 4th slot (4th being the furthest slot from the CPU) and that is the only way the PC boots. If I switch to 1st and 3rd slot I get a prompt to switch back with no further screen.

I bought two of the same RAM sticks, the exact ones.
DDR4 8GB 3200MHz Kingston HyperX Predator CL16, HX432C16PB3/8

The voltage was auto switched to 1.35 when the RAM was installed. I have chosen 3200MHz in the BIOS settings.

The full motherboard model:
https://www.msi.com/Motherboard/B450M-PRO-VDH.html

 

[julienruc]

Ahhhh I see. Even when you buy two of the exact same RAM sticks, it doesn't guarantee that they are compatible with each other. This is why manufacturers will sell them in dual packs, which is the only time they can guarantee 100% that two sticks will work together. This is why people often recommend completely replacing old RAM sticks with a new set whenever you upgrade.

Try using one stick at a time and at both the 2nd and 4th slot. If they both work individually at 3200Mhz. It simply means that the sticks aren't compatible with each other.

If they don't work individually at 3200Mhz, then it's a BIOS setting issue. In this case, you need to first update the BIOS and carefully check if you've done the overclock properly (try to see if someone on Youtube has the same Motherboard as you).

Best of luck my man.

 

[julienruc]

I saw u liked the post. How'd the testing go? Did they work individually?

 

[Raikko Kiminen]

I saw u liked the post. How'd the testing go? Did they work individually?

They both work individually and I have gone further to OC them from 3200 to 3333 just to see what happens...and now in command prompt when I typed "wmic memorychip get speed " I get 3333 as a result. Switched back to 3200 and it stays like that. I guess that 2400 max bandwidth is just a fancy number that I don't understand, since the original speed is actually active. Max bandwidth confuses the hecc out of me but in the end it doesn't matter since the actual speed of 3200MHz is definitely active. Thank you for your time, tho, it's much appreciated.