You received a single RAM module from eBay, but it feels unusual...
You received a single RAM module from eBay, but it feels unusual...
I was searching for RAM that matches my existing setup (8GB, 2133MHz L14). After installing the new unit, the computer started but no display appeared. I had to try several times before it worked. Once functional, I ran an Aida64 memory test and noticed the new RAM runs at only 2000MHz instead of the original 2133MHz. It also shows higher latency and a lower rank, though this difference seems minor. Should I return it for a refund, or will this still be acceptable? Old unit: New unit: And in dual channel:
Obtain CPU-Z and review your RAM specifications there. Those figures listed in Aida64 can be puzzling since the small Windows version still displays 2133MHz, which I believe is accurate because that’s the minimum JEDEC speed for DDR4. The additional values in the larger window likely reflect what Aida64 gathered from the DRAM’s SPD, though they might not always be reliable. The variation in L cache size can differ significantly between runs, so it’s safe to disregard that detail.
CPU-Z also shows a clock speed of 2000MHz while the other one runs at 2133MHz
Your RAM operates at 2133MHz. The RAM clock remains constant regardless of workload, always the same. You might be referring to CPU clocks instead? DRAM operates at 1066.2MHz (DDR = Double Data Rate 1066.2*2 ≈ 2133, minor variation from spread spectrum).
I questioned how CPU-Z presents CPU frequency details in the memory section (NB Frequency). Your understanding is correct—those tools typically show actual real-time speeds, not just a portion. Thank you for clarifying!