Only half the RAM usable - Ryzen

[michaelbohan2]

System:

CPU - Ryzen 2600
RAM - Ballistix Sport LT BLS8G4D26BFSE 8 GB
Motherboard - MSI x370 Krait

I have bought an additional 8 GB RAM which is detectable but not usable.

Each RAM works separately. The RAM is installed in the correct channels. Latest Bios is installed. Removed the CPU, cleaned and checked for bent pins?

Is there anything left to try other than a new motherboard?

 

[dederedmi5plus]

Don't have krait mobo, but must be BIOS related, try clearCMOS > enter BIOS > look under RAM tab and set to auto.

 

[michaelbohan2]

Don't have krait mobo, but must be BIOS related, try clearCMOS > enter BIOS > look under RAM tab and set to auto.

If I clear CMOS will it still recognize the processor? I had to use a gen 1 processor to update the BIOS so that it would work with the 2600.

 

[coozie7]

You can clear the CMOS without effecting the BIOS, that resides on a different chip.

 

[michaelbohan2]

Don't have krait mobo, but must be BIOS related, try clearCMOS > enter BIOS > look under RAM tab and set to auto.

No effect :-(

 

[Dipesh_5]

Are the rams different speeds or companies? That might give you a problem imo.

 

[michaelbohan2]

Are the rams different speeds or companies? That might give you a problem imo.

Both are Ballistix Sport LT BLS8G4D26BFSE 8 GB (DDR4, 2666 MT/s, PC4-21300, DR x8, DIMM, 288-Pin)

 

[dederedmi5plus]

so you only see 8GB RAM on windows task manager, but BIOS shows 16GB?

 

[michaelbohan2]

I see in the bios that both 8gb ram sticks are present in each slot but the total memory is still listed as 8gb in the bios.

 

[michaelbohan2]

https://forum-en.msi.com/index.php?topic=285834.0

I see the same as this guy. I've ordered some cpu cleaner to make sure there is definitely no thermal paste where there shouldn't be so will give it all another clean.

 

[norcalsc]

what does it say in windows?

 

[michaelbohan2]

what does it say in windows?

Windows shows 16GB (7.95 GB usable)

 

[sizzling]

The fact the RAM was bought separately and not as a matched kit always introduces a risk of issues although they tend to be stability issues. I think cleaning the cpu socket is a good idea but this may just be a result of mixing RAM.

 

[dederedmi5plus]

Enter BIOS, under RAM tab, set speed to 2133 timing Cas Latency to any number higher than 16 (17, 18), set the volt to 1.2V, save and exit.
Mostly, BIOS will use the lowest setting among two (2133 and 2400 BIOS will set the 2400 to 2133, CL 16 and CL 17 BIOS will use 17), if persist, use one RAM at the time, you'll have to remember or write down the SPD (MHz, timings, and voltage (1.2 or 1.35)), use the lowest.

Software side http://www.tomshardware.com/answers/id-2928234/windows-half-installed-ram.html

 

[michaelbohan2]

Enter BIOS, under RAM tab, set speed to 2133 timing Cas Latency to any number higher than 16 (17, 18), set the volt to 1.2V, save and exit.
Mostly, BIOS will use the lowest setting among two (2133 and 2400 BIOS will set the 2400 to 2133, CL 16 and CL 17 BIOS will use 17), if persist, use one RAM at the time, you'll have to remember or write down the SPD (MHz, timings, and voltage (1.2 or 1.35)), use the lowest.

Software side http://www.tomshardware.com/answers/id-2928234/windows-half-installed-ram.html

Didn't have any luck with this. I've also cleaned out the CPU socket with no joy. Looks like I'm stuck with 8GB RAM!

 

[dederedmi5plus]

update BIOS http://download.msi.com/bos_exe/mb/7A33v1D.zip