4 RAM STICKS

[Goodevil]

Hi,

 

First of all, I appreciate your thoughts on this, and thank you for your time.

 

CPU: Ryzen 5600

My RAM setup: 2x16gb (CMK16GX4M1D3000C16)
Tested Latency: 16-20-20-38
Tested Speed: 3000

 

 

I need more RAM because I noticed that my activities consume 29GB of RAM and sometimes I have to "cut" some data from my dataset so I don't "explode" the RAM usage during ML tests (Machine Learning).

 

Q: If I buy more ram with speeds higher than this one, knowing that I will have to lower the specs on BIOS for them to work together:

 

• can I buy 2x8GB RAM sticks?
• Or should I buy 2x16GB RAM sticks?
• Will I encounter any problems?

[ewitte]

Two if at all possible.  Things don't always work out with 4 sticks although Ryzen 5000 tends to work fine.  7000 series the issues come back you have to severely limit clock speeds...

[PowerPCFan]

For machine learning I'd get a 3200MHz 64GB (4x16) ram kit, assuming your system is DDR4 and supports 3200MHz speeds and that amount of ram (some motherboards cap out around 64gb).

 

If you did get a 4x16 64GB kit, I'd go for this one, but if you don't care about RGB aesthetics you can probably find a cheaper one

 

**See my message below

[RONOTHAN##]

11 minutes ago, Goodevil said:

Will I encounter any problems?

Maybe? Mixing RAM is not an exact science, there's a lot of factors involved, including luck. The only real way to guarantee that it will work would be to have the exact same RAM with the same PCB, SPD programming, and memory IC, which even buying the same exact model number doesn't guarantee that those will be the same. 

 

In my experience, the odds with any two sticks at the 3200 CL16/3600 CL18 speed bin are ~85% that it will just work at XMP speeds, 10% that it'll function but XMP doesn't work, and 5% that it won't work no matter what you do. If it's an option to just replace your current RAM with a 2x32GB kit instead, do it, though if it's significantly cheaper to just add more RAM just make sure to buy it from a place with a good return policy. 

[PowerPCFan]

Or a 2x32GB kit as @RONOTHAN## suggested. That's probably better than the 4x16 configuration I mentioned above. 

[SpookyCitrus]

I absolutely would not mix kits of ram, DDR4 in particular can be pretty picky, you could get two of the exact same kits of ram and still have incompatibility and instabilities. The best practice when buying ram for a new build or upgrading ram in a build is to buy a kit of the exact size and speeds you want. I also wouldn't recommend going with a quad module kit. Going with a dual module kit is best. For machine learning, I'd recommend a 32GB(2x16GB) 3200mhz kit minimum, if you want the best performance with it a 64GB(2x32GB) 3200mhz kit or higher would be preferable.

[Somerandomtechyboi]

2 hours ago, RONOTHAN## said:

The only real way to guarantee that it will work would be to have the exact same RAM with the same PCB, SPD programming, and memory IC, which even buying the same exact model number doesn't guarantee that those will be the same

I mean my oem green pcbs work flawlessly and those have the same model number (also means same ics), i just happen to pick rubbish so kinda regret this 6x4 dual rank d9qbj when i could have just gone for a quad rank 6x4 samsung d die config since i have to run at a mere 1900 anyways

 

i think you are referencing non oem rams cause the oem stuff seems to be the exact same every single time given you order the specific model number you want, maybe the only diffs would be oc capability cause ics arent binned

 

i mean i bought 6 matching sticks with the same model number and same ic and they all work together at 1900, not to mention the 5 psc sticks i have (idk if ive ever tested em on x58 but they definitely work in a 4 stick config seemingly past 2200 when i stop getting shit boards that cant clock)

 

2 hours ago, SpookyCitrus said:

The best practice when buying ram for a new build or upgrading ram in a build is to buy a kit of the exact size and speeds you want

Not guaranteed to work when upgrading rams if you are just gonna add 2 extra sticks, youd wanna identify ic with thaiphoon burner and find a model number for a green pcb that has a matching ic, binning can be disregarded here cause same damn ic same oc capabilities all not binned, just apply xmp and if the board and imc can handle the extra sticks then it should just work, i mean the ics are the exact same and afaik thats the thing that solely determines compatibility

[SpookyCitrus]

On 6/30/2023 at 7:34 PM, Somerandomtechyboi said:

Not guaranteed to work when upgrading rams if you are just gonna add 2 extra sticks, youd wanna identify ic with thaiphoon burner and find a model number for a green pcb that has a matching ic, binning can be disregarded here cause same damn ic same oc capabilities all not binned, just apply xmp and if the board and imc can handle the extra sticks then it should just work, i mean the ics are the exact same and afaik thats the thing that solely determines compatibility

Huh? My whole comment is saying not to mix match even identical kits of ram, you're just repeating my own advice back to me. You literally quoted the part where I said to buy exact kits instead of mix matching. Am I misunderstanding something here?

[Somerandomtechyboi]

10 minutes ago, SpookyCitrus said:

Huh? My whole comment is saying not to mix match even identical kits of ram, you're just repeating my own advice back to me. You literally quoted the part where I said to buy exact kits instead of mix matching. Am I misunderstanding something here?

The thing with exact kits is the ics are not gonna be the same unless were talking oem bare pcbs where youll get the exact same ic as sepcified on the model number (ex hma82gu6djr8n), so those generic 3200c16 plastic heatspreader rams will almost always have diff ics even with a ram stick that has the same bin and heatspreader

 

Or are you reffering to kits like 2x8 or 4x8 where theyll be matched in terms of ic?

[SpookyCitrus]

1 minute ago, Somerandomtechyboi said:

The thing with exact kits is the ics are not gonna be the same unless were talking oem bare pcbs where youll get the exact same ic as sepcified on the model number (ex hma82gu6djr8n), so those generic 3200c16 plastic heatspreader rams will almost always have diff ics even with a ram stick that has the same bin and heatspreader

 

Or are you reffering to kits like 2x8 or 4x8 where theyll be matched in terms of ic?

You're not understanding what I'm saying. What I'm saying by exact kits in the quoted sentence is buying a kit of 2x16GB, 2x8GB, 2x32GB, 4x8GB, 4x16GB, etc. of the size and speed wanted over mix matching even identical kits. Buying a complete kit from the factory with the exact size and speed OP wants. Not mix matching, my whole reply is about not mix matching even identical kits for the reasons you are mentioning. The literal first sentence of my reply is "I absolutely would not mix kits of ram, DDR4 in particular can be pretty picky, you could get two of the exact same kits of ram and still have incompatibility and instabilities.". 

[Somerandomtechyboi]

35 minutes ago, SpookyCitrus said:

You're not understanding what I'm saying. What I'm saying by exact kits in the quoted sentence is buying a kit of 2x16GB, 2x8GB, 2x32GB, 4x8GB, 4x16GB, etc. of the size and speed wanted over mix matching even identical kits. Buying a complete kit from the factory with the exact size and speed OP wants. Not mix matching, my whole reply is about not mix matching even identical kits for the reasons you are mentioning. The literal first sentence of my reply is "I absolutely would not mix kits of ram, DDR4 in particular can be pretty picky, you could get two of the exact same kits of ram and still have incompatibility and instabilities.". 

Ok i think im just being retarded and i problably need to fix my broken sleep schedule

 

ill just put an fyi that you dont need a ram kit if you are buying bare pcb oem sticks frim samsung/hynix cause if you specify model number youll get the exact same ic every single time, binning doesnt really matter theyll all clock the same, maybe for systems where you cant tune ram then the jedec bin matters

[SpookyCitrus]

1 hour ago, Somerandomtechyboi said:

Ok i think im just being retarded and i problably need to fix my broken sleep schedule

 

ill just put an fyi that you dont need a ram kit if you are buying bare pcb oem sticks frim samsung/hynix cause if you specify model number youll get the exact same ic every single time, binning doesnt really matter theyll all clock the same, maybe for systems where you cant tune ram then the jedec bin matters

You're definitely over thinking this, and not fully understanding. 

[Somerandomtechyboi]

9 minutes ago, SpookyCitrus said:

You're definitely over thinking this, and not fully understanding. 

[SpookyCitrus]

10 minutes ago, Somerandomtechyboi said:

picture removed for clutter

OP is asking whether or not they should mix match two 2x16GB kits to get 64GB of ram. Or if they should just get a 2x32GB kit to get 64GB of ram. Or vice versa with 32GB, myself and others just pointed out that quad kits are a little iffy on Ryzen, and it's better to go with a dual kit. As well as pointed out the issues with mix matching kits to equal a higher amount and it's better to buy a kit from the manufacturer with the size and speed they want over combining kits to get it. 

 

Then you came in going on about custom ordering ram, and going into detail on ic, types of die, and PCB. Which is not what OP was needing help with, ultimately making it more confusing for OP as well as those of us who are helping them. 

 

You quote replied to me specifically talking about not combining kits with different ics and of different models and types etc. When my whole reply already was saying that exact same thing. Causing more confusion. 

 

Also I don't think you and the rest of us mean the same thing by "ram kit". 

 

I digress, this topic was already pretty much sorted before you came in and started muddying the waters, I'm not trying to be rude, but it's getting worse off the more you continue. Because there is clearly some miscommunication or misunderstanding of what has been said already on your part. 

[Somerandomtechyboi]

31 minutes ago, SpookyCitrus said:

OP is asking whether or not they should mix match two 2x16GB kits to get 64GB of ram. Or if they should just get a 2x32GB kit to get 64GB of ram. Or vice versa with 32GB, myself and others just pointed out that quad kits are a little iffy on Ryzen, and it's better to go with a dual kit. As well as pointed out the issues with mix matching kits to equal a higher amount and it's better to buy a kit from the manufacturer with the size and speed they want over combining kits to get it. 

 

Then you came in going on about custom ordering ram, and going into detail on ic, types of die, and PCB. Which is not what OP was needing help with, ultimately making it more confusing for OP as well as those of us who are helping them. 

 

You quote replied to me specifically talking about not combining kits with different ics and of different models and types etc. When my whole reply already was saying that exact same thing. Causing more confusion. 

 

Also I don't think you and the rest of us mean the same thing by "ram kit". 

 

I digress, this topic was already pretty much sorted before you came in and started muddying the waters, I'm not trying to be rude, but it's getting worse off the more you continue. Because there is clearly some miscommunication or misunderstanding of what has been said already on your part. 

 

i am just confused now and i am not able to sleep

[freeagent]

I have been running mixed B-Die for 3 years with no problems. But most other ram seems shittier, so it is probably luck of the draw.

[r00tb33r]

On 6/30/2023 at 6:03 PM, Goodevil said:

 

• can I buy 2x8GB RAM sticks?
• Or should I buy 2x16GB RAM sticks?
• Will I encounter any problems?

You'll be fine.

[Goodevil]

Thank you for all your thoughts, it seems like mixing is a question of the same specs and luck. As I work with data analysis, I will sell my 2x16GB kit and buy a 2x32GB because it's better to be safe. I am using DDR4 and it seems like Intel's mobos are letting people use DDR4 on DDR5 slots... really nice from my POV because RAM for me is about capacity and not speed... maybe I'll buy a new Intel mobo next year or just wait for 2025 because of how things are expensive nowadays...

 

Maybe I can convince my boss that I need more $ to buy more RAM to run Chrome.

 

 

Thank you all for your thoughts and time.