Question Two fans going slower than my 3 other fans

[avalez]

Two of my fans are going slower than the rest. I have looked at the rpm on bios and the difference is less than 100rpm difference. I just figured this was because those two fans are on a fan splitter causing it to go slower. Is this normal or should I be worried?

 

[Lutfij]

We will need more information. What is the make and model of all your fans in your chassis and how are they connected to the motherboard/in your system? You should also mention the make and model of your motherboard if the fans are connected to it.

On second thoughts, please include/list your specs like so:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
GPU:
PSU:
OS: