Double Boot on Rampage IV Formula

[szr81]

Hello Everyone on this Forum.
I know that it was a lot on this topic, but for me, problem with double Boot occurs only above 4200 MHz overclocking. When my processor run on 4100 MHz- no problem with double boot. What are your suggestions to solve this problem? maybe this is normal? My motherboard have new BIOS update- ver. 5001.
This is my computer spec.:
Rampage IV Formula
I7 4820K Processor
PSU: Chieftec BPS-750C (750W) 80+ Bronze
RAM: Kingston HyperX KHX1866C9D3/16GX (4x4GB)
VGA: 2x (SLI) ASUS GTX660 TI-DC2-2G
Cooler: Zalman LQ315
HDD: SSD: ADATA SSD XPG SX900 128GB and Seagate Barracuda, 1TB
Thanks for any help. Regards

[Arne_Saknussemm]

Yes it's normal...there is a threshold in the BIOS for this to happen. The board only clears itself if necessary to maintain stability

[szr81]

Thanks Arne Saknussemm for Your respond.
Can anyone ever create a modified BIOS, which eliminates this problem. Regards

[Arne_Saknussemm]

Well, thing is it's not a problem....it's a feature of the board...you want stability overclocking and the board is delivering.

Better double boot than crashes and corruption in OS...