2021年4月3日 · This JEDEC standard is called Extreme Memory Profile (XMP) and it denotes the set of profiles that the RAM manufacturer provides, built-into the RAM module. When you install the RAM, the XMP profiles define in which combination of standardized speeds/timings/voltage your memory will run at.

2021年8月2日 · If CPU supports DDR4-3200 natively, you need DDR4-3200 CL22 1.20V for the system to recognize DDR4-3200 correctly. Otherwise, if you have a memory kit that requires XMP (CL22 and lower), then the...

2019年5月17日 · So, 2666mhz is the default JEDEC speed for that platform with those components. Enabling XMP on 2666mhz sticks, with that configuration, is probably not going to change much of anything because...

2024年8月2日 · XMP (Extreme Memory Profile, originally created by Intel®) or AMD EXPO™ (Extended Profiles for Overclocking, originally created by AMD) is an extension of the standard JEDEC specifications and allows users to overclock their RAM beyond the default speeds by applying pre-configured and tested profiles with higher frequencies and optimized ...

2019年12月6日 · jedec定义的spd内存速度和时序参数可以由bios直接读取，所以开机时，默认的内存速度是jedec的，不是xmp的。 如何识别这四种内存呢？ 一般可以通过CPU-Z检查内存SPD信息，就可以看到JEDEC和XMP的速度、时序参数了。

2023年11月1日 · For simplicities sake, the JEDEC 4800 spec is the base spec of most DDR5 and it will run at that speed by default. If you bought DDR5-6000, you'll need to enable XMP or EXPO in the BIOS (usually a one click setting) to get the memory to run at that speed.

2024年2月29日 · XMP or Extreme Memory Profiles, is an Intel technology that allows you to change multiple memory settings, whereas EXPO is the AMD equivalent. Both methods enable higher memory speeds simply...

2025年2月9日 · The primary purpose of XMP is to allow your RAM to operate at speeds higher than the standard JEDEC (Joint Electron Device Engineering Council) specifications, which are designed for maximum compatibility across a wide range of systems.

2013年12月24日 · Looking at these timings, does that mean that I can be running this memory at 1954MHz or 1866MHz and still be within JEDEC Spec? I would just need to change all the bios stuff to match the values...

XMP is Intel proprietary extension to JEDEC memory timing data. The XMP data typically contains timing data that may work with the chip (XMP is officially overclocking so it's not guaranteed to work) and JEDEC data contains the data that is guaranteed to work.