DDR4 3000 compatible in DDR4 2133 motherboard ?

[tylerrr]

I recently purchased the MSI Gaming Intel Skylake B150 LGA 1151 DDR4 USB 3.1 Mini ITX Motherboard (B150I Gaming Pro AC) https://www.amazon.com/gp/product/B01APM2VU4/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

For ram it says it "Supports DDR4-2133 Memory" but the ram I want to purchase is clocked higher. It also says...


• 2 x DDR4 memory slots, support up to 32GB
- Supports DDR4 2133 MHz *
• Dual channel memory architecture
• Supports Intel® Extreme Memory Profile (XMP)
* Please refer to www.msi.com for more information on compatible memory.
* DDR4 2133 MHz and higher memory modules will only run at maximum of DDR4 2133 MHz on XMP mode due to Intel® chipset limitation.

Corsair Vengeance 16GB (2x8GB) DDR4 3000 (PC4-24000) C15 for DDR4 Systems, White LED (CMU16GX4M2C3000C15)

https://www.amazon.com/gp/product/B01HKF4ZUI/ref=ox_sc_act_title_2?ie=UTF8&smid=ATVPDKIKX0DER&th=1

Will it work just at a lower speed ? Or do I absolutely need to purchase dd4 2133 ? The price is the same. Thank you.

 

[manddy123]

It will be downclocked automatically to the mobo's max speed support. No harm done.

I'd keep the 3000MHz RAM, whenever you buy a Z170 or Z270 that supports higher speed, you will benefit more from your RAM.

 

[NerdIT]

So, DDR4 RAM runs at 2133Mhz by default. When you put any speed of RAM into a system, it is going to run at 2133. The 3000Mhz sticks will run at that frequency when the XMP profile, for that speed, is enabled in the BIOS.

Some CPU's have trouble with certain RAM dividers/speeds. For example; I have a i7-5820k on an x99/DDR4 board. I have 2800Mhz RAM modules installed. My particular CPU has stability issues running RAM over 2400Mhz for whatever reason (this may be fixed later by a BIOS update) without intense tweaking. I personally just let it run at 2133 (default). I could and have ran it fine at 2400Mhz (manually chosen in BIOS), but there is no noticeable increase in performance outside a few points in some benchmarks.

RAM timings often yield more results when tightened down and tinkered with -but that's another discussion!

 

[NerdIT]

So, in short the RAM you picked will work just fine! Good brand also.