Corsair 3000mhz Ram Showing As 2133 | Causes + Fixed

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Are you looking for the reasons and solutions for Why Does your Corsair 3000mhz Ram Showing As 2133? Continue reading to know more about it.

Corsair 3000mhz Ram Showing As 2133

This may be because of the motherboard’s maximum clock speed which is 2666MHz. Either overclock your RAM (tinkering with timing and voltage) or set your BIOS Memory Multiplier to the maximum. It will run at base clock speed till then, depending on hardware compatibility (whichever is lowest).

Why Corsair 3000mhz Ram Showing As 2133

Why Is My DDR4 3000 Mhz Corsair Vengeance LPX RAM Running At 2133 Mhz?

This could be due to different factors.

  1. If you combine a 3000MHz memory module with a 2133MHz memory module, both memory modules will operate at a slower speed of 2133MHz.
  2. It’s possible that your processor doesn’t support 3000MHz memory. This can be found on the product specification page of the individual processor maker.
  3. You may need to enable the XMP profile for the RAM module you purchased to run at 3000MHz. Enable the XMP profile in your BIOS settings. To find the settings, look in your motherboard’s handbook.

This type of problem is common in laptops. Unlike high-end gaming laptops, most laptops do not support memory speeds over 2400MHz.

Is It Possible To Combine 8GB DDR4 2133mhz CL15 RAM With 8GB DDR4 2400mhz CL16 RAM?

Contrary to common belief, memory technology has been extremely highly standardized for many years, and manufacturers “had” to comply with JEDEC standards that require SPD profiles that help the firmware automatically select memory timings for you.

Due to the same standards, putting Double, Triple, and Quad-channel memory technologies to work has been easier over time. The most plausible reason why someone can experience problems similar to those represented in common memory myths is that:

  • Lower-quality memory from less-serious producers who don’t always adhere to JEDEC standards.
  • Inadequately written motherboard guides sometimes fail to indicate underlying technical limits, leading to users performing actions that they should not.
  • Many users never read instructions in the first place.
  • The user deliberately breaks standards to achieve maximum performance by overclocking frequencies and employing tighter timings than normal profiles.

That final aspect may be the source of most misconceptions because advanced users desire ideal performance. When they talk about it, those with limited expertise repeat what they heard, nearly invariably forgetting or misinterpreting the context.

So, the answer is no problem; you can mix them effortlessly. Each module also has all of the slower SPD profiles, allowing it to work in combination with slower memory without any manual setting.

You can even match and mix sizes and brands as long as you follow some basic guidelines: acquire high-quality components from major manufacturers and study your motherboard documentation for information on how to fill the slots.

Bonus track: Different-sized modules will still enable the dual-channel because there is no technical limitation. Asymmetrical isn’t ideal because some of the total memory will have to operate alone (single channel). Still, the rest will provide higher bandwidth, and most of the time, more memory is preferable.

What Happens If I Use 4GB DDR4 2133 MHZ DIMMS From Crucial And Kingston?

As long as both DIMMs are DDR4 and your motherboard and CPU support the memory capacity, it will function perfectly (all DDR4 motherboards and CPUs support more than 8GB total RAM, so this is not a problem in this instance).

If the memory modules have different “JEDEC” profiles, the faster kit will underclock to match the slower kit; however, if their JEDEC profiles are for the same memory frequency and latency timings, both will run as they would if they were used alone.

If you have to overclock your memory, you should be able to manually modify the memory latency timings (and maybe memory frequency) on most motherboards. For memory stability, it is normally suggested to utilize matched DIMMs offered as a single kit, especially if overclocking but not required.

Except for a few obsolete low-end server CPUs, all DDR4 CPUs can run dual-channel single-rank RAM at 2133MHz, so you don’t have to worry about it with typical desktop CPUs. I’m sure they can all run dual-rank at 2133MHz, but that’s irrelevant if you’re only using two 4GB modules.

Even if they are built by the same manufacturer and marketed under the same product name, two memory kits of the same speed may use different memory dies (for example, one may use Samsung “C” memory dies and the other Hynix “DJR” dies).

As a result, there is no compelling reason to select a kit from the same memory module manufacturer for compatibility reasons. Unless you buy directly from Samsung, Hynix, or Crucial, it’s usually impossible to know what memory die is used in low-cost memory kits (which manufacture their memory dies).

No matter what type of memory die is on your memory modules, DDR4 memory will work at 2133MHz. Memory die type becomes significant around 2666MHz or higher, as virtually all DDR4 memory dies are theoretically capable of functioning at 2400MHz, even if they are only rated for a lesser speed.

Can I Put A 2400 Mhz DDR4 RAM Module In The Second Slot If The First One Is 2133 Mhz?

  1. Your motherboard chipset must support the ram speed. First, see if your motherboard supports it, then look it out online or contact the manufacturer.
  2. You’re good to go if your motherboard supports it, but there’s a hitch. Because you have another 2133 MHz RAM module, your 2400 MHz RAM module will also run at 2133 MHz. That is the law. All memory modules on the same motherboard operate at the same speed as the slowest.

Finally, yes, it will work. However, I recommend saving money and purchasing another 2133 MHz module. Then you can profit from Dual channel memory and obtain greater results than if you plugged in a faster one. You can also replace the 2133 MHz module with one that runs at 2400 MHz.

RAM Running At 2133 With XMP On

  • The CL15 at 3000mhz is probably incompatible with the board and memory controller.
  • You are experiencing this because the board is set up to fail the OC three times and post in “safe mode” the fourth time.
  • Memory timings should be manually set to 16-16-16-16; leave the other timings on automatic.
  • The v-mem should then be manually set to 1.350v so you can verify that it is operating at that voltage.
  • After that, find a setting named “PowerDown mode” and turn it off (it might be in the timings menu.)
  • Restart with F10. I hope it works well for you.

RAM Won’t Go Above 2133

If the XMP profile is not manually enabled, your RAM will operate at the standard default speed, which is most likely 4800 MHz for DDR5 and 2133 MHz for DDR4 RAM kits, respectively. Your RAM will only run at the highest speed that your CPU will allow if your CPU is unable to support the frequencies of the XMP profile.


So, that’s it about Corsair 3000mhz Ram Showing As 2133? XMP must be enabled. The JEDEC standard, which publishes DRAM specifications, stipulates that the DRAM maximum data rate (not frequency, which is half of that, remember?) is 2133 MT/s. Therefore, you’ll need to overclock it to the manufacturer’s specifications.

Frequently Asked Questions

Does Corsair RAM support XMP?

At rated speeds of up to 5000MHz, performance RAM like our Vengeance and Dominator series can be found.

Does the Corsair Vengeance RGB Pro support XMP?

Corsair’s vengeance RGB Pro SL memory is compatible with both Intel and AMD platforms. It supports XMP 2.0 for a quick and simple setup.

Is it possible to put 3000MHz on a 2933MHz motherboard?

Does it downclock to 2933MHz automatically? You can use 3000MHz memory in a motherboard that doesn’t explicitly support that frequency.

Is the Corsair Vengeance LPX XMP compatible?

We include two XMP profiles instead of simply one for customers who want to manage how much power the RAM utilizes. The first XMP profile keeps the DDR4 at its 1.2V specification, while the second boosts the voltage to 1.35V in exchange for a faster speed.

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