Question Cannot enable XMP with advertised RAM speed

[Grocery List]

The system :
Proc : intel i9 12900k
Mobo : MSI Z690 EDGE WIFI DDR4
PSU : CORSAIR RM1000X
RAM : 16x4GB TRIDENT Z ROYAL 4000mhz (2 kits) [F4-4000C19-16GTRS]
GPU : RTX 3090 ASUS STRIX OC 24GB

To start things off, i found this issue because i was checking through task manager and found out that my speed had been running on 2133mhz instead of the 4000mhz that its suppose to.
Not knowing much about how things should work or how i should troubleshoot it, I googled around and found out that my XMP was disabled.
I went to BIOS, turned on XMP , saw the notice prompt that speed would be changed to 4000mhz and save & reboot.

Got the message "memory overclock fail", had to reboot and googled around again,
Tried one stick of RAM, one by one and checked if anything was wrong,
One stick would run at 4000mhz, the other three just gives me prompt of "Memory overclock fail"

At the moment i am able to run it on 3600mhz on gear 1

Can anyone maybe help me ?

 

[rgd1101]

return the 2 kits

get 1 kit with 4x16GB

 

[DRagor]

^^^^ or stick with what you got. 3600 at gear 1 is quite good. I doubt you could see the difference between 3600 and 4000 (although it does depend what you plan to use this machine for).

 

[Grocery List]

^^^^ or stick with what you got. 3600 at gear 1 is quite good. I doubt you could see the difference between 3600 and 4000 (although it does depend what you plan to use this machine for).

i agree with what you said to be honest,
I kinda got this ram for the price of 3200mhz ones
because the seller told me that they ran out of 3200 and 3600 so they gave me the 4000mhz for free because i ordered a few bunch of stuff from them.

It just kinda gave me an itch to see that i cant run my ram on the speed its supposed to run on

 

[geofelt]

Ram must be matched to operate at advertised speeds.
The more sticks involved the more they need to be matched.
To verify that you are ok,
Run memtest86 or memtest86+
They boot from a usb stick and do not use windows.
You can download them here:

MemTest86 - Official Site of the x86 Memory Testing Tool

MemTest86 is the original self booting memory testing software for x86 and ARM computers. Supporting both BIOS and UEFI, with options to boot from USB.

www.memtest86.com

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)

www.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.

It turns out that intel real app performance is not much hampered by ram speeds.
I think you are good at 3600 speed if you pass memtest.

 

[Bob.B]

i agree with what you said to be honest,
I kinda got this ram for the price of 3200mhz ones
because the seller told me that they ran out of 3200 and 3600 so they gave me the 4000mhz for free because i ordered a few bunch of stuff from them.

It just kinda gave me an itch to see that i cant run my ram on the speed its supposed to run on

Get the latest bios and retest.

 

[Grocery List]

Get the latest bios and retest.

i have the latest BIOS

 

[Grocery List]

Ram must be matched to operate at advertised speeds.
The more sticks involved the more they need to be matched.
To verify that you are ok,
Run memtest86 or memtest86+
They boot from a usb stick and do not use windows.
You can download them here:

MemTest86 - Official Site of the x86 Memory Testing Tool

MemTest86 is the original self booting memory testing software for x86 and ARM computers. Supporting both BIOS and UEFI, with options to boot from USB.

www.memtest86.com

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)

www.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.

It turns out that intel real app performance is not much hampered by ram speeds.
I think you are good at 3600 speed if you pass memtest.

I did a memtest once,
but slept throught it, and didnt see the result. Might do it again later.
For it being matched or not, im not sure if i get what you mean. If you mean they are the same type and size etc, they are 4 identical sticks.