Ddr4 3200mhz ram in a 2400mhz laptop

[kona786]

Would DDR4 3200Mhz SODIMM ram work with my laptop which has RAM rated @ 2400Mhz.

Would it automatically clock down?

Reason I as is that I can get in cheaper than 2400Mhz sticks.

CPU is an i3 7th gen.

 

[kona786]

Should clock down to 2400mhz but not gauranteed to be comparable.

Okay. Not comparable in terms of timings?

But should boot and work fine?

 

[kona786]

Timings should be the same as JEDEC profiles states certain timings for certain speeds.

If you're replacing the RAM it will go to the highest JEDEC profile (or XMP if the laptop supports it). If you're adding RAM to add work with the old one, then the faster RAM will drop to the speed of the slower one.

Timings will default to 2400mhz which shouldn't be a problem .

Thanks chaps.

Could you guys recommend a RAM test app. I might have a faulty ram stick in another laptop of mine.