Z87 OC FORMULA - powering on CPU LED problem

Dear Kknd,

Thank you for contacting ASRock.

Regarding your case, we provide some suggestions to try:

1.      Clear CMOS to load BIOS default.

Please check user manual p28 to clear CMOS.

http://asrock.pc.cdn.bitgravity.com/Manual/Z87%20OC%20Formula.pdf

2.      Only install CPU and one stick memory to check if the system can boot into BIOS properly.

3.      Please try to install one stick memory at A1, B1, A2 and B2 slot to check if the system can boot into BIOS properly.

4.      Reinstall CPU and check if CPU socket pin is fine.

5.      If it is possible, please change another CPU or DRAM to check if the system can boot into BIOS properly.

Thank you!

Yours truly,

ASRock TSD