[SOLVED] Would these three sticks of RAM work together?

[fpol444]

The already working slot contains a HyperX Fury 8GB DDR4-2400 (usualy working at 1200 MHz).
The sticks I'd add would be two (2) Crucial 8GB Ballistix DDR4 3000 MHz UDIMM.
Would they work fine together?

 

[USAFRet]

The already working slot contains a HyperX Fury 8GB DDR4-2400 (usualy working at 1200 MHz).
The sticks I'd add would be two (2) Crucial 8GB Ballistix DDR4 3000 MHz UDIMM.
Would they work fine together?

Somewhere between not at all, and not really well together.

Mixing RAM has a good possibility of not working at all.
If it does work, the fast RAM will run at the speed of the slow RAM.

You have 8GB.
How much do you actually need?
I'd try it, but if it burps even a little bit, take out the slow 1x 8GB and run it on the fast 2x 8GB alone.

Also, Ryzen is much more sensitive to the RAM. What is this whole system?

 

[Darkbreeze]

No, they will not work "fine" together. They might "work" together, but they will never work together "fine". They would all run at the MUCH slower speed of 2400mhz, rather than 3000mhz that the two matched sticks are supposed to run at. And that is without factoring in any other considerations such as latency or other timings. Using mixed memory is generally a poor idea anyhow. It can work, but it is usually not advisable especially at speeds above 2666mhz for most DDR4 platforms.

Excerpt from my memory guide below.

The odd man out, (Or, mixed memory)​

While memory modules that did not come together in a matched set that was tested by the manufacturer to be compatible, certainly CAN still work together, often it does not. Right up front I'll tell you that if you are trying to get sticks to work in the same machine together that were purchased separately, even if they are otherwise identical according to the kit or model number or if they would seem to have identical timings and voltage requirements, there is a very good chance that you simply will not be able to do that. There is also a pretty fair chance that you might be able to if you are willing to take your time, listen to and understand what you are being told and follow the steps necessary to determining if they will "play nice" or not.

The exception in most cases will be that if the memory from both sets are the same speed and timings and both kits are within the JEDEC specifications for the default speed on that platform, so for example, 2666mhz on the latest Intel Z390 platform, 2133mhz on Ryzen first and second Gen platforms, then they stand a much better chance of working together but if they are higher speed kits the chances begin to diminish from what they might be at the low speed and loose timings end of the scale.

A word of advice. If you just purchased this memory, and for whatever reason you bought two separate sticks of the same memory instead of buying them together in a matched set, see if you can return them for a refund or credit towards buying a similar or same set of matched sticks that come together in a kit. It is ALWAYS better to have matched modules because from brand to brand, or even within the same brand, in fact, even when the part numbers are IDENTICAL, there can be anything from simply slightly different memory chips that were sourced from different bins at the end or beginning of a production run to entirely different configurations altogether even though the model numbers seem to be the same. Some manufacturers even reuse model numbers when they discontinue a product. Point being, memory is only the same for sure when all sticks came out of the same blister pack or packaging and were sold as a tested kit.

In order to determine if differences in the memory, or a need for increased voltage when using more than one stick (Especially if you are running three or more sticks) are responsible for the problems you are having you will always want to begin your troubleshooting process by attempting to boot the machine with only a single stick of memory installed. Also, for practically every consumer motherboard that's been sold since at least as far back as about 2014, the A2 memory slot which is the second slot over from the CPU socket, is THE slot that is most commonly designated for the installation of a single memory module. Slots A2 and B2 are almost always the slots specified in the motherboard memory population rules for use with two modules. If you need to install a third module I have no opinion on which of the remaining slots to use for that, but typically since the A1 slot is right next to the CPU socket and often interferes with the CPU cooler or fan, I'd say the B1 slot was probably just as good.

Honestly, I don't ever recommend that you HAVE three modules installed anyhow. Using memory in pairs is almost always a better option, except on boards that support triple channel memory population, so that normal dual channel operation will occur. And that's another thing. When it comes to memory there are no "single channel" or "dual channel" memory modules. There are ONLY memory modules and the motherboard and CPU architecture will determine whether or not dual, triple or quad channel operation is possible based on the architecture and how many modules are in use. Occasionally though there are situations where it might make sense to run three modules and some boards CAN use three modules in a FLEX type mode where two of the modules will operate in dual channel while the third oddball module will run in single channel. I'd avoid oddball configurations though if possible because many motherboards will simply run ALL modules in single channel mode when an odd number of modules are installed.

If you think you will ever need 16GB of memory, then buy 16GB of memory from the start so you can get it all in a matched set that has been tested,
and eliminate a lot of problems right from the start.

How To - Troubleshooting problems with PC memory (RAM) and XMP profile configurations

In the beginning, there was......BIOS Before you go ANY further, go to the manufacturer product page for your specific motherboard model AND revision. Revision is an important aspect because for any given motherboard there may be more than one version of that model which will be identified...

forums.tomshardware.com

 

[fpol444]

Somewhere between not at all, and not really well together.

Mixing RAM has a good possibility of not working at all.
If it does work, the fast RAM will run at the speed of the slow RAM.

You have 8GB.
How much do you actually need?
I'd try it, but if it burps even a little bit, take out the slow 1x 8GB and run it on the fast 2x 8GB alone.

Also, Ryzen is much more sensitive to the RAM. What is this whole system?

I have an Intel 6G Ci5 6400 2.7 GHz/6MB LGA1151
ASUS Intel Z170-A S/V/R DDR4 LGA1151 ATX
Nvidia GTX1070 8GB Gigabyte
3.5" SATA3 1TB Western Digital Blue 64MB
SSD S3 120GB KINGSTON V300 KIT 7mm Desk
a 650W "generic" PSU
Also a 1200VA Voltage regulator.
I just asked because I wanted to know If I could play the newer games or not with the build.

 

[Darkbreeze]

I'd be a lot more concerned about the 650w "generic" PSU than anything else. If you have performance issues, they are FAR more likely to be coming from THAT then they are from a lack of memory.

However, I agree with USAFRet when he says that given two choices, you really want to remove the single stick of RAM and install the matched pair you have, because then you will get dual channel operation which doubles the bandwidth. Make sure to install them in the second and fourth slots over from the CPU, which are the A2 and B2 slots. That is where they NEED to be installed.

You should then also gain the added benefit of the memory running at 3000mhz instead of just 2400mhz like it is currently. This is your best option for now. I would sell the single oddball memory module. The far better option, would be to sell all of it and get a single 2x 8GB matched set of 3000 or 3200mhz memory and ONLY run that. Running memory that all came in one kit is the only way to mostly guarantee anything, and I say "mostly" because it also needs to be a memory kit that has been validated for use on that motherboard by the memory manufacturer or the motherboard manufacturer.