I really got it solved. You will not believe. It's so simple but obvious.
It's a bug about the Intel new oprom, surely. First of all with the 3402 Asus untouched rom everything was kind of smooth concerning about the raid and everything. The problem about the boot failure by the second attempt started with the the mod and oprons updates., specially the disks stuff.
Before saying what I did try you to picture out how my system was set.
My MB (http://www.asus.com/Motherboards/Intel_Socket_1155/P8Z68VGEN3/#specifications
) has 2 x SATA 6Gb/s port(s), gray and 4 x SATA 3Gb/s port(s), blue.
The point is before everything, I need to say that the order of boot before and after flashing with the Mod rom was the first boot always the SSD disk , never Raid Samsung, set in the Bios.So, my Samsung disks that made the raid were plugged into sata port 1 and 2 ( in other words, the Sata 3 (6gigas)) and the SSD was plugged into a sata 2 port number 3 and my DVD writer into Sata port 4 and so on.
Lets start describing the really important stuff.
I backup all data and fresh up all the disks including the array that I redo after flashing the bios with the modded one. The point is that I just redo the array but I did not create a partition just to avoid windows create a boot sector into raid but just in the SSD.
So, i started the windows setup with just the SSD ready.
After everything installed I tested booting up for the first time (first attempt with the PC off) the following message appeared:"Reload and select proper boot device or insert boot media device"
And as expected after the second attempt windows loads as usual. So, the same problem with the array redone and all disks freshen and a windows clean install happened.
Nothing changed about redoing array or even refreshing everything up. Just re-flashing to the original Asus rom to get the things into place.
But I kept the modded rom and changed something that was simple and that was decisive.I put the SSD into Sata Port 1 (sata 3) and changed the Samsung Disks to Sata Port 3 and 4, keeping in mind that into the bios the order of boot was always SSD.
So, guess what happened. Problem solved.
That is. Now I ask you if that is not a Opron bug because with the old bios (not modded), it does not matter what Sata port the SSD with the system was plugged it worked and with the new one the Intel chipset always tried to get the boot first into Sata port 1 where the Hdds were with no system and the second attempt to boot it loaded normally. That is why I always had problems with the first boot with the mod.
And it gives another problem to me that is: I am wondering to upgrade my two HDD's to sata 3 ones and I was planning to plug them into Sata 3 ports (grey ones) with no system to use all the performance given to it where my SSD is now.
So, if I do that, plugging new Hdds into the first two sata ports (sata 3) and the ssd back to sata port 3 or 4, keeping this mod, the same problem will occur.
So, did I get myself clear. The text was so long.Edited by cybersm - 10/30/12 at 8:15am