Asus e3 pro gaming v5 core frequency issue

[Venomfrosty]

I have an i7 6700k (non-OC, because the motherboard doesn't allow it) that only runs at 3.96ghz no matter what I do. I know it should turbo to 4.2ghz, and cooling isn't an issue..

Ive reset my motherboard a few times and enabled XMP (even though mobo only supports 2300mhz)

I have run prime95 for 10 minutes now to see if it would rise to 4.2 ghz, but it simply didn't.

Can anyone help me with this? Is there something I possibly overlooked?

I know the motherboard is a bad buy, but it's all they had in stock at the time

other specs:
windows 10 x64
16gb ddr4 @2300mhz
gigabyte g1 rx480 8gb

 

[DRagor]

The motherboard has turbo mode enabled on default settings, so if you did reset CMOS, it should work. If it does not, it is because either: CPU temps are too high, PSU is not supplying enough power (do you have 8 pin EPS connected or only 4 pin ATX?) or there is problem with CPU.

 

[Venomfrosty]

The motherboard has turbo mode enabled on default settings, so if you did reset CMOS, it should work. If it does not, it is because either: CPU temps are too high, PSU is not supplying enough power (do you have 8 pin EPS connected or only 4 pin ATX?) or there is problem with CPU.

Hi, thanks for the response.

I have a 550 watt PSU, so that's more than enough. Motherboard has the 24pin and 8 pin at the top left. My temps are 74-76 while under synthetic load (i have a 240mm watercooling solution). I don't know how to test and see if it's the cpu unfortunately 🙁

 

[DRagor]

I don't know how to test and see if it's the cpu unfortunately 🙁

The only way is to put in another motherboard.