RAID support (number of drives)

[Cinder]

Hello all,

I have a Rampage V Extreme/u3.1 motherboard and for some reason I can't configure more than 4 drives in a RAID array(s). Ultimately my goal is to have 3 separate RAID0 arrays, each consisting of 2 drives, but I cannot configure more than 2 arrays (4 drives) for the life of me.

According to the documentation of the Rampage V Extreme (http://dlcdnet.asus.com/pub/ASUS/mb/LGA2011/RAMPAGE_V_EXTREME_U31/E9550_RAMPAGE_V_EXTREME_UG_for_web...) the board shouldn't support more than 4 drives configured in a RAID array. The Intel controller is on ports 1-4 and 7-10 and the ASMedia controller is on ports 5-6. The ASMedia controller doesn't support RAID and according to the user manual "due to chipset behavior, the SATA6G_78 and SATA6G_910 ports do not support IRST including RAID configuration". This leaves just ports 1-4 available for RAID configuration.

I have two RAID0 arrays setup on ports 1-2 and 3-4 - pair of 120GB Kingston SSDs and 512GB Samsung Evo 850 SSDs. I also have a pair of 1TB Samsung Evo 850 SSDs that I want to set up in RAID0, but if I plug them in ports 7-8 or 9-10, the RAID card doesn't even see the drives. If I plug the 1TB SSDs on the ASMedia controller, the OS sees them, but I have to use a SW RAID0, which is considerably slower.

P.S. I'm fairly sure I had 6 drives in 3 separate RAID0 arrays back when I assembled the machine (had 2x1TB SATA drives before the 1TB Samsung SSDs), but for the life of me I can't get the Intel controller to see the 1TB Samsung drives now, now matter what SATA ports I use.

Do I have a faulty motherboard or?

P.S. I have an EK-FB ASUS R5E Monoblock, although I don't think that's related.

[Cinder]

Well... that didn't last long. For some reason the power plan had changed and my PC went to sleep. After waking up Windows bluescreened due to some critical process dying. After that one of the SSDs (port 6 again) was missing. I had to plug it in one of the ASMedia ports and then back to port 6 in order for the RAID card to recognize it, but of course after that the RAID card said it's a non-member disk, which meant I had to re-do the RAID array and lose all data on it.

This is really annoying... It's definitely not the drive's fault, because I observed the same behavior with the SATA drives previously and it's not the SATA cables, because those have been replaced as well. This leaves either the motherboard or the RAID card.

[Minsekt]

have you tried a modded bios yet? i belive theyve updated the raid controller module too. maybe that will fix it? people reported the same problems and the modded bios has fixed this in the past. heres the latest modded bios https://rog.asus.com/forum/showthread.php?83583-2001-uefi-bios-mod

i havent tried it before as im not using that much drives and never felt the need for the modded bios.