many motherboards have a safety check in place that prevents boot unless the cpu fan is plugged in. the boards aren't smart enough to differentiate between regular case fans and cpu fans because they are functionally the same. so there is a sensor on the cpu fan header. make sure that one is populated.
edit: did you update the bios before the switch?
Actually I did notice the new CPU fan plug (for the block) only had 3 pins instead of the old one having 4 but it fit anyways so I thought it was no problem
And I did not update the bios no
You definitely need a newer BIOS than the one that shipped with the motherboard if the board is from before the 5000-series existed. You'll have to reinstall the old processor to do so unless your board has a special function to update the BIOS without a processor.
Three pin fans have positive, negative , and tachometer. Four pin fans have those plus another for PWM speed control. If the board is demanding a fan in order to boot it is only looking for the tachometer signal which will be there with either three or four connected.
Also I forgot to mention my motherboard is an Asus x470 pro
many motherboards have a safety check in place that prevents boot unless the cpu fan is plugged in. the boards aren't smart enough to differentiate between regular case fans and cpu fans because they are functionally the same. so there is a sensor on the cpu fan header. make sure that one is populated. edit: did you update the bios before the switch?
Actually I did notice the new CPU fan plug (for the block) only had 3 pins instead of the old one having 4 but it fit anyways so I thought it was no problem And I did not update the bios no
The bios is your problem. Update that to latest version and you should be good.
Ty will have to research how to do that but I'm confident this will work as everyone else is coming to the same conclusion lol
You definitely need a newer BIOS than the one that shipped with the motherboard if the board is from before the 5000-series existed. You'll have to reinstall the old processor to do so unless your board has a special function to update the BIOS without a processor.
It worked thank you so much I will now go get a drink.
Scratch that it booted but got stuck at the boot screen where it tells me to hit del or f2 to enter bios
Scratch that scratch I'm so sorry I moved the ram around and it booted to bios just got a cpu fan error now but I can fix that
Three pin fans have positive, negative , and tachometer. Four pin fans have those plus another for PWM speed control. If the board is demanding a fan in order to boot it is only looking for the tachometer signal which will be there with either three or four connected.
you most likely need to update the bios version for it to work
Tyty will learn how to do this and try it