(RAM) Memory Set up

[nobz]

 

Hi All,

 

not sure if there is an open thread if there is kindly put the link please

 

I previously bought 1 stick of DDR4 3000Mhz 16GB ram when I built my new computer (I forgot the Cas latency but lets says  its 15-17-17-35) since i planned to add another by next month or so

 

Now I got the new same brand DDR4 3000Mhz 16GB ram but i noticed that the latency is different (lets just say 10 19 19 36)

 

My question is how do i set this up in my motherboard settings (should I set the latency of the lower one? could i set it in the middle?)

 

 

Your Possible questions:

 

- Why did you not but the same set of ram: No options for latency to pick (it was same same brand but the latency was not advertise) Corsair Vengeance. I thought that they just  have the same timing since it is the same brand and product. 

 

https://shopee.ph/CORSAIR-Vengeance-LPX-8GB-16GB-DDR4-2400Mhz-2666Mhz-Module-PC4-19200-21300-Desktop-RAM-memory-8GB-16GB-DIMM-i.167721774.5329181537

 

https://shopee.ph/product/436441/6735385892

 

- My (son's) Computer:

 

Processor: Ryzen 5 3600

Board : B450 MSI bazooka plus

Graphics: R580 4GB (miners edition, DVI output only) 

RAM: 32GB DDR4 Corsair Vengeance LPX (difference CL)

Storage: 250 NVme (WD) and 1TB HDD (WD)

PSU: Deep Cool 500W

 

- Why not return it? the process may take another 3 months or so with return process. just to be fair the new one has better CL timmings. the old one can't be returned or exchange.

 

 

Thanks in Advance

[Applefreak]

Try to run XMP profile 1 on the board. If it works, memory timings should adjust accordingly.

With RAM you will always end up with the worst latency of both modules because it needs the sync them. So if one module is faster, like the newer one, it will be slowed down to the level of the older one. That is not an issue and as long as both run at the advertised speed. 

If XMP does not work, you will have to set clocks and timings manually. Make sure to set them to the slowest module to avoid stability issues. Older board could run memory that was out of sync but you would loose dual channel support, which is actually much better than having one module be slightly faster than the other.

[nobz]

6 minutes ago, Applefreak said:

Try to run XMP profile 1 on the board. If it works, memory timings should adjust accordingly.

With RAM you will always end up with the worst latency of both modules because it needs the sync them. So if one module is faster, like the newer one, it will be slowed down to the level of the older one. That is not an issue and as long as both run at the advertised speed. 

If XMP does not work, you will have to set clocks and timings manually. Make sure to set them to the slowest module to avoid stability issues. Older board could run memory that was out of sync but you would loose dual channel support, which is actually much better than having one module be slightly faster than the other.

that's what I did on the XMP and I might be overthinking that I am maybe missing at least a little performance here and there that is why I asked. but I will post later my CPUZ screen shot . and thanks for your response at least I know that I did something right

 

[Haro]

Mix and matching sticks may and may not work, if it happened to work, they'll all run at the worst timings.