PC won't let me go into Bios (Maximus VII Hero)

tcb1005

Distinguished
Feb 11, 2014
481
0
18,860
Hello,
I recently overclocked my PC using the ASUS EZ tuner, however, I believe it is an unstable overclock since the computer will randomly lose display but continue to run, which will require a manual reset. So now when I try to enter my motherboard bios to undo the overclock, the computer will run, but I have no display, and the motherboard displays error code A2 (Something regarding IDE detect). The strange thing is whenever I simply turn the computer on without attempting to enter bios, the desktop boots just fine. Has anyone else dealt with this particular issue successfully? Any help would be really appreciated!
Here are my Desktop Specs, although I don't believe it has anything to do with the rest of the hardware:
i7 4790k
AMD Radeon R9 390
Asus maximus VII hero
16gb RAM
Thanks!