msi pro z790-a max wifi. all disk disappeared Oon boot

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haim_gaddasi

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-Mother board: Z790-A-MAX-WIFI
-CPU: i7-13700K
-Memory: Kingston FURY Renegade Silver 32GB KF564C32RSK2-32
-Power supply: ASUS ROG-STRIX Modular
-Cooling: Thermalright PS120SE
Win10

I have the msi pro z790-a max wifi for a long time now but I rarly used it, last month I transfered my old computer to the "new" z790 and start working at the begging last week.
After a couple of days I tried adding to my current 32GB of memory anther 64GB, agter I installed the sticks the computer boot up diractly to bios and thats it.
I've checked the disk settings, I have RAID5 for boot made with 3 M2 SSD 500GB and 4 other disk and 2 DVD drives.
In the main bios page NONE of the drives is found, in the RAID conficuration ALL of the drives are found...
I tried meny times turning on and off the computer and it didn't work exepet one time and after rebooting it return back to fail detecting drives.
-Who did it happens?
-How to solve it?
-The most importent thing for me is saving my boot disk (I don't think I'll use that board agin), is RAID5 is in standard format? can I move the SSD to another system and it will be detected as a functional disk?
 
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adding some pictures
 

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you could check where did you get your old bootable hdd? is it from very old CSM system chipset?
as newer computer system is now using UEFI mode....

one way is to back up your important file and just reinstall Win11 in UEFI mode.

Note: Try to press F11 upon bootup and see which bootable device is available for selection.
 
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Sorry, I don't follow you.
pandaz said:
you could check where did you get your old bootable hdd? is it from very old CSM system chipset?
as newer computer system is now using UEFI mode....
Click to expand...
I have a RAID5 for boot made with 3 M2 SSD 500GB running win10, I've installed it 3 month ago.
pandaz said:
one way is to back up your important file and just reinstall Win11 in UEFI mode.
Click to expand...
Goof idea, but there a minor problem, I can't see the RAID5...
 
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if you originally installed the RAID 5 bootable system from another chipset MB then big chance the RAID cannot be recognize anymore...：（
 
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haim_gaddasi said:
I have a RAID5 for boot made with 3 M2 SSD 500GB running win10, I've installed it 3 month ago.
Click to expand...
I've installed fresh win10 on the RAID5.

Now, I'm having again a problem from the past. Board stack up on boot and that's it, it doesn't display nothing on the screen.
I'm building and using computers for over 30 years, I can't recall the last time I had so faulty/unreliable board.
 
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Another surprise. After many turn on/off the board cane back to live, I've added a SATA card.
Board still cant see any disks, is there a requirement in the BIOS to set boot from external SATA controller?
 
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I never recommend using a RAID anymore with modern SSDs, it only has the potential of causing trouble. Yes, RAID5 can protect you against a drive failure, but this is almost the least you need to worry about, if you select a good model that has been proven to be very reliable, for example a WD SN850X. On the other hand, with a RAID5, you are adding complexity, which statistically makes it less reliable, as you have more failure points in the BIOS / software. This is still a software-assisted BIOS RAID. So any problems with the BIOS, and you face a full rebuild of the RAID array. On a RAID5, even with M.2 PCIe SSDs, this can cost you many hours, potentially even days, depending on the RAID capacity. Because XOR rebuild process tends to happen on a slow pace. In a proper hardware RAID, you would have a dedicated processor and RAM purely for the RAID function and XOR acceleration. This would happen via discrete RAID controller add-on card or via special RAID hardware on the motherboard (RAID-on-chip, an ASIC), which would have a seperate RAID BIOS. On a common consumer motherboard, you will have no special RAID hardware, so the RAID5 would run on your CPU, potentially costing performance there, and nothing gained from any higher read speeds from the drives. So i really don't think it should be used with M.2 PCIe SSDs anymore. I'd just do regular backups if you are concerned about drive reliability.

I think it's normal that your drives are only shown when RAID mode is enabled. Can you show some screenshots/photos of the relevant BIOS pages? We need to find out what is going on, and carefully looking at the relevant settings is a good place to start.
 
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