Feature Testing: Mystic Light
Much like the X370 XPower Gaming Titanium, this model does not have an RGB LED lighting feature in the strictest sense since its onboard LEDs are all one color: red. Thankfully, unlike on that higher-end model, there are no other different coloured LEDs to ruin the overall look.
While the red "Ambient LED lights" - MSI's term - do indeed look great on the B350 Tomahawk, if you so choose you can disable all of the red LEDs and instead use your own lighting since the onboard RGB LED header will allow you to plug in an 5050 RGB LED light strip, have it fully powered by the motherboard, and have it controlled from within the MSI LED utility.
Let's take a peek at the LED utility again:
The LED utility is obviously the piece of software in charge of controlling the Mystic Light LED lighting feature. Whether you like LED lighting or not, you will need to install this piece of software (which is integrated into the Gaming App) since there is basically no LED settings in the UEFI. If you want to disable this feature, it is as simple as clicking the icon in the top-right corner.
Using the LED utility you can customize the lighting with your choice of five lighting effects, such as breathing, flashing, double flashing, random, or you can enable the extended effects (tied to the header) and it can react to your music or your CPU temperature. You can also choose to disable all effects, and just display a static colour. The Extend LED Effects area reveals small number of colours and additional effects that, but they don't actually apply to this particular motherboard, at least not in stock form. We suspect that they might only work when you install a LED light strip.
While the green lighting from our graphics card and Corsair pump/block unit gives the system kind of a Christmas theme, you can still get a pretty good idea on how much lighting the B350 Tomahawk puts out.
There are RGB LEDs under the audio isolation line, under the right edge of the motherboard, and there's even one near the CPU socket. We do wish that there were some integrated into/under the chipset heatsink, since that would have really brought the whole look together.
Overall, it is a perfectly fine LED lighting implementation for such an affordable motherboard, especially for those who like RED lighting.
Feature Testing: Mystic Light
Much like the X370 XPower Gaming Titanium, this model does not have an RGB LED lighting feature in the strictest sense since its onboard LEDs are all one color: red. Thankfully, unlike on that higher-end model, there are no other different coloured LEDs to ruin the overall look.
While the red "Ambient LED lights" - MSI's term - do indeed look great on the B350 Tomahawk, if you so choose you can disable all of the red LEDs and instead use your own lighting since the onboard RGB LED header will allow you to plug in an 5050 RGB LED light strip, have it fully powered by the motherboard, and have it controlled from within the MSI LED utility.
Let's take a peek at the LED utility again:

The LED utility is obviously the piece of software in charge of controlling the Mystic Light LED lighting feature. Whether you like LED lighting or not, you will need to install this piece of software (which is integrated into the Gaming App) since there is basically no LED settings in the UEFI. If you want to disable this feature, it is as simple as clicking the icon in the top-right corner.
Using the LED utility you can customize the lighting with your choice of five lighting effects, such as breathing, flashing, double flashing, random, or you can enable the extended effects (tied to the header) and it can react to your music or your CPU temperature. You can also choose to disable all effects, and just display a static colour. The Extend LED Effects area reveals small number of colours and additional effects that, but they don't actually apply to this particular motherboard, at least not in stock form. We suspect that they might only work when you install a LED light strip.
While the green lighting from our graphics card and Corsair pump/block unit gives the system kind of a Christmas theme, you can still get a pretty good idea on how much lighting the B350 Tomahawk puts out.
There are RGB LEDs under the audio isolation line, under the right edge of the motherboard, and there's even one near the CPU socket. We do wish that there were some integrated into/under the chipset heatsink, since that would have really brought the whole look together.
Overall, it is a perfectly fine LED lighting implementation for such an affordable motherboard, especially for those who like RED lighting.