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hardware raid 1 appears 2 disks in N40L after upgrading to win10


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I have a HP MicroServer N40L:


Windows 7 in 120G SSD as boot drive;

TWO identical 4TB disks with hardware RAID 1 set up;

Only ONE 4TB disk can be seen in Windows 7.


It's been working perfectly for almost 8 yrs.


Recently i upgraded to Windows 10 and then strange things happened:

1. Two 4TB disks cannot be recoganised in Win10, i have to treat them like a new disk, to re-format them, which is strange, but it's ok luckily i backed up everything;




2. After re-formated them and RAID 1 set up again, TWO 4TB disks appears in Windows 10. Isn't one supposed to be hidden?!


It seems like N40L Raid 1 is not working on Windows 10? Do I need a new raid driver? but i couldn't find one.


Is anyone using N40L with Win10 and hardware Raid 1? Please help!


Edited by ZZzzGeorge
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it seems that hardware raid is not supported in win10, or i couldn't find the driver.


Anyway I installed windows server 2016 and solved the issue

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  • 2 months later...

I have HP ProLiant MicroServer Gen7 N40L.


BIOS version 2013.10.01 (A) (15 NOV 2013).


RAID Option ROM version 3.2.1549.33.


I had 2x 2TB WD Green disks, configured in RAID1, which were seen as one disk in Windows 7.


I replaced Windows 7 with Windows 10 and had to upgrade BIOS from original version to version 2013.10.01 (A) (15 NOV 2013) in order to fix network card problem (Windows 10 could see NIC but complained that Ethernet cable was not connected even if it was plugged in). I read that same NIC problem was found on Windows Server 2012.


Detailed description of BIOS upgrade is here:



 SP64420.exe (2.6 MB) can be downloaded from here: https://cloudrun.co.uk/server/bios-for-hp-proliant-microserver-g7-n54l/


After that I added 2x 4TB WD RED disks, configured them as RAID1 in RAID BIOS and ended up with the same problem that Windows 10 saw them as two separate disks in Disk Management console.


I downloaded AMDXpert_V32154010_XPVISTAWIN7.zip and installed RAIDXpert version 3.2.1540.10.


The file is available here: https://www.driverguide.com/driver/detail.php?driverid=1800617


Then I downloaded AMD RAID driver WHQL_SB8xx_RAID_2K8_3.2.1540.75.zip from here: https://vhrms.tistory.com/217


I replaced AMD RAID driver version 3.7.1540.43 (added automatically during Windows 10 installation) with 3.2.1540.75.


I restarted the server, again configured RAID1 in RAID BIOS for 2x 4TB WD RED disks, opened RAIDXpert application (using “admin” for both login and password) and saw 2x 4TB WD RED disks, configured into one RAIS1 disk.


I opened Disk Management console, also saw one 4TB disk there, initialized it with GPT and quickly formatted with NTFS.


It was long tricky journey but I managed finally.


Some screenshots attached.











Edited by southfort
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