After upgrade to AMD FX 9590 I have found that CPU is running only at 4 GHz. I looked BIOS and I found that values in it are correct, i. e. 4.7 GHz normal frequency and 5 GHz boosted frequency. So I am thinking that motherboard could correctly operate with new CPU but somewhere is something wrong. My MB is Gigabyte GA-990FXA-UD5.
What should I do now?