Question Mixing Ram Sticks with different Speed and Timing but got the higher speed RAM speed.

[Ricky Zhang]

My PC Spec is like this

Cpu : Ryzen 5 1600 OCed to 3800 MHz
MB : MSI B350 Tomahawk

At first i only have the 2x4 GB T-Force Team Dark Grey DDR4 3000 with timing 16-18-18-38. Used it for 1 year with 2933 Speed XMP in the Mobo
And i got another stick of Corsair DDR4 Vengeance LPX PC25600 16GB (2X8GB) - CMK16GX4M2B3200C16 with timing 16.-18-18-36.

I thought if i mixed them i will got 24 GB Ram with 2933 speed and timing of 16-18-18-38, because i read in forums mixing different ram timing and speed will success but the higher speed ram will follow the slower ram speed and timing.

At first i reset my bios, insert the LPX and set via XMP to 3200 speed, then after it boot, i shut down, put my Team Dark Ram and it won't boot so i reset the bios again and i enable the XMP again to 3200 MHz with 4 stick inserted. I thought it won't boot because i not yet set manual timing for the RAMs.
But it boot successfully. I check the BIOS, HWInfo and CPU-Z it's actually running 3200 Mhz
I run some Benchmark like Cinebench. SuperPI. No BSOD yet.

Is the CPUZ and HWInfo not accurate or it just list my LPX speed? Or Maybe my Team Dark RAM is automatically overclocked to 3200 MHZ too? But the timing should be different then the LPX right?

Screenshoots :
Ram Speed
Ram Speed 2

 

[Dunlop0078]

All sticks are running at 3200mhz according to those screenshots. Im quite surprised to see that on a B350 board especially with mixed RAM and using all 4 slots. But hey if it works it works.

Personally I have found when testing RAM stability the best thing is an intensive game, BF1 showed me RAM instability that was not shown in SuperPi 24million or memtest86.