I have two SR2's.  The first was RIMA'd back to EVGA recently for this reoccurent problem.

I didnt want to wait for the board to come back and wanted to be sure of a 100% new MOB so I bought a new one, put it in yesterday.

I have the same problem as before, new MOB didnt help just took a alot of work to swap out.

Problem is an LSI 9269-8i RAID controller card PCIe x8, in slot nubmer one (one card 6990 in slot 7, others disabled).  When the MOB starts up it never sees the RADI card, it doesnt show, gets stuck on something like " cant find boot device instert and press any key to continue"  But if I plug a SSD into the MOB can can run Windows just fine.
 
I disassembled any RAID option in SR2 BIOS, I turned off e/SATA and set whats left to AHCI.   By the way, the boot priority never shows anything but the CD ROM drive and a USB device, never sees the card. 

The RAID card uses an LSI program for pre-boot configuration called  "WebBIOS"  you can press cntrl + H on start up and it will allow you to configure the drives before getting to the OS.  I tried this but can never access the card's BIOS or control software of any kind.
 
Used a spare SSD directly into the board and ran Windows.  Once running cant find the RAID card in the Windows device panel.  While in windows useing the spare SSD, I tried using the LSI configure program called MegaRAID, that program is unable to find the LSI card as well.

Tha card heats up, and gets power, I'm using all the MOB plugs and have tested them w/meter and reseated them.  THe MOB is brand new, no shorts works with a SSD plugged directly into the board.

Tried the RAID card in another computer, hit Ctrl + H and could get into Web BIOS, so the card may be ok.

Tried slot two in SR2 no better.

When this computer was running in the past (on my RMA'd  SR2 ) the RAID card worked in slot one best (actually only) and was fine.  For a while on the original MOB I ran Windows, used the Windows GUI software from LSI to configure and run RAID zero drives, no plroblems.  I have not touched the previously working drives or their poer supply.  It quit working after I rebuilt the case.  I RMA'd that board and bought this new one....no deal.
 
 

it's not the LSI card that is the problem, it is the mobo bios

that's the thing with evga bios and lsi raid cards, sometimes they work, and sometimes for months on end they do not, evga and lsi do not play nice together always at all

Installation:
=============
Use MegaCLI to flash the SAS controllers. MegaCLI can be downloaded from the support and download
section of www.lsi.com.
Command syntax: MegaCli -adpfwflash -f mr2108fw.rom -a0 
 =============
Start - Run - navigate to megaCLi folder and run above command syntax (remember to change "mr2108fw.rom" to your file name.

I gave up on the LSI card and removed it.  IT gets hot and I decided that it must have gotten too hot or what ever and died.  I gave up on it after a year.
 
I bought a new Arecea card last week, it's an ARC-1880ix-12  ($800)
 
I put it into slot one and also tried two, again the SR-2 MOB will not see it!  The red lights are on all slots.  The new Areca card gets hot, it beeps a few brief times during the MOB start up but all lights are off once Win7 has started via a separate 60GB drive plugged into a SATAII slot (which always works fine)
 
The SATA III are disabled, the eSATA are disabled.  The PCIE slot boot priority is set to match the Acera card's slot (usually the first)
 
SR-2 firmware is A56 newest.
 
So, I decided I'll install the driver disk on the little 60 Gb SSD drive plugged into the MOB and see what happens.  It installs the web browser version of the Acera.  I ran the windows Areca set up program and it cant detect the controller.
 
I have tried pressing F6 and Tab during start up but can never get into the Areca BIOS set up program.  I went to the SR-2 BIOS and dissabled the quick boot and allowed it to show all the processese as it runs through them, I never see the expected Areca prompts.
 
What a pain, what is wrong with this board?  this is the second brand new MOB for this problem.  Other people on this board arre running this card.

Well, I tried A49. I tried to disabled everything in the BIOS possible until it would not start and then backed off.  EVGA said in a help ticket that they don't guarantee RAID cards will work (thanks), and they suggested I remove all devices possible "to see if you may be running out of option ROM space".  All I've got plugget in is the Areca in slot one and a 6990 in slot 7.
 
They way its built, it is diffifult to switch slots, but I could do it if I had to test it.  Does anyone think it really matters? 

the sr2 doesnt support anything, i went from revodrives to lsi to intel. Its been almost 2 months and I cant get this thing running.