Is it safe for me to mix these 2 different RAM types?

julienruc · Aug 8, 2018

Hi all,

I'll try to be as direct as possible.

I have a Ryzen system and tried to switch/upgrade my Corsair RAM to G.Skill. Ever since the switch, my system often crashes whilst playing heavier games or when I stream and play games at the same time (it does however work normally when playing lighter games, even whilst streaming).

I am now stuck with the following RAM sticks without possibility of return/refund.

- Corsair Vengeance LPX 2x4Gb 3200Mhz (CMK8GX4M2B3200C16R)
https://www.corsair.com/us/en/Categories/Products/Memory/VENGEANCE%C2%AE-LPX-8GB-%282x4GB%29-DDR4-DRAM-3200MHz-C16-Memory-Kit---Red/p/CMK8GX4M2B3200C16R

- G.Skill Trident Z RGB 2x8Gb 3200Mhz (F4-3200C16D-16GTZR)
https://www.gskill.com/en/product/f4-3200c16d-16gtzr

I've noticed that I'm quite lucky as they run at the same voltage and have similar speeds. Although, since I am running a Ryzen system I should expect some difficulties due to the G.Skill sticks.

For the moment, I've set the Corsair sticks on the B-Channels and G.Skill sticks on the A-Channels.
The RAM settings are currently set at 2133Mhz, with 1.2v, and the speed set at 16-18-18-38.

I am wondering whether this was the right way to go? It's been 24 hours and have not had any issues so far - but will this last?

Is it safe for me to increase clock speeds to 2666Mhz since my Motherboard natively supports that speed? Or even safe to go to 3200Mhz?

Build Info:
CPU: Ryzen 5 1600
MB: Asrock AB350 Pro4 (latest BIOS)
GPU: MSI GTX 1060 6Gb OCV1 (latest driver)
PSU: Seasonic SII-Evo 520w

mdsimmons1118 · Aug 8, 2018

I think the worst that could happen is one not work properly
You should test each one to see if they work separately
Then check if they both work at the same time.

ElectrO_90 · Aug 8, 2018

Upping the speed the system will or won't work, but at least you have found a stable speed for now.
Sadlt, you are not running it in dual mode, but I doubt it's making a huge impact on your system

You seem to have it all under control so I believe you know what you are doing. Try and have some fun.

madmatt30 · Aug 8, 2018

So runnin the gskill alone in dual,channel caused instability but adding the corsair as well in channel b made the system stable?

That really doesn't make a whole lot of sense at all.

At 2133mhz single channel (how you have it now) you have a massive performance deficit over what you could have.

To put into context , on ryzen 1, 2400mhz dual channel gives better performance than 3200mhz single channel.

I'd be doing a little,more,to get those gskill sticks running properly myself.
2666mhz cas 15 should,be rock solid stable.

Did you ever update the bios on that board ??
Earlier bios revisions had awful ram compatibility problems.

Froberg · Aug 8, 2018

Sell the 2x4 and use the 2x8 stand alone, and update your BIOS. Mixing sizes and manufacturers is a bad call.

julienruc · Aug 17, 2018

That's why I was confused as well. Using the 2x8Gb G.Skills only, I would crash when stream and playing at the same time. Running at 3200mhz and 1.35v.

When switching to 2x4Gb Corsair on the A2 B2 channels and 2x8Gb GSkill on A1 B1 fixed the issue. And this is running at 2133mhz at 1.2v.

julienruc · Aug 17, 2018

So everything is on dual channel btw. I might have expalined that poorly

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Is it safe for me to mix these 2 different RAM types?

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