Select the appropriate RAM by checking the CL22 specification for your prebuilt system.
Select the appropriate RAM by checking the CL22 specification for your prebuilt system.
Hi, I recently acquired a HP prebuilt (TG01-2002in) with a single 16GB RAM stick and wanted to upgrade. I couldn't locate the exact RAM used in this model among available options. The current stick is a Samsung CL22 (M378A2K43EB1-CWE), 1x16GB. I explored alternatives like Crucial CT16G4DFD832A and another model, CT16G4DFRA32A, which Amazon lists as the latest but notes it can be either single or dual-ranked. I’m leaning toward the first option but was unsure due to similarities. Could someone clarify the differences between these Crucial RAM models? Also, a quick breakdown of the naming conventions would help me understand the distinctions better. Thanks! P.S. Current RAM info: https://imgur.com/a/nsjnsUA
Well, case 22 seems to be quite sluggish. I think they probably chose the least expensive RAM option available. Just remember not to repeat that choice if you have the means for something better.
Thanks for the update. The HP 8906 doesn’t support XMP, and adding another RAM would force it to use its default clock speed. Since I’m not familiar with RAM timings, I’d appreciate guidance on selecting the correct module for this board. I’m willing to swap if you can recommend the right fit.
The two important components you discovered match in both velocity and timing. It’s preferable to choose the single-rank units among them. Single-rank units operate at a quicker cycle rate than dual-ranked ones. Nevertheless, CL22 tends to lag behind. Opt for the lowest CLxx value you can find.
I mentioned earlier that the board doesn't accept XMP profiles, and purchasing RAM with lower latency might cause it to run at its standard clock speeds. (That's the information they provided.) Board link: https://imgur.com/El2Drc5
It’s better to have lower timings for speed. The higher clock speeds still matter. For instance, a 14th generation 3200MHz DDR4 chip is faster than a 16th generation 3600MHz one. The 14th is generally the best option for DDR4, though it’s less common to find it. I have DDR3 which runs slower but is cheaper. The 22nd generation DDR4 is slow. You aim for the maximum speed your motherboard supports, but lower CAS numbers can still boost performance. You might see that memory with similar speeds but lower CAS costs more. That’s why. DDR5 offers higher CAS rates than DDR4 and also much higher speeds, starting around 4800MHz. There are many CAS variants available. The most common reference is just the first number or the first four digits.
Imagine I install a CL16 RAM that supports up to 3200Mhz, but only hits that speed when XMP is turned on. In that case, it might actually run around 2666 or 2133Mhz at CL16. Now compare that with a CL22 chip that defaults to 3200Mhz. Which one would perform better? Let me know if you're mistaken. Also, note that you mentioned using a Ryzen processor.
Many DDR4-s under-volt happily too btw... Though no guarantee, true