T7910 no hard drives found error

Hello,

just to rule out a possible issue point, how long ago was the cmos battery changed ?

Hi, Thank you for your quick response. 

I didn't change it for more than 5 years.  But I did replace the battery when I had this no hard drives found issue.  And the issue is still there.

@Hubsuite​ Have you tried moving the card to a different slot ? ( to rule out that the slot developed a problem )

moving LSI SAS card to a different slot?  

@Hubsuite​ ignore, my bad

Cards in general can fail, but I think it happens more often in GPU's.

I'd try How to Perform a BIOS or CMOS Reset and Clear the NVRAM on Dell Computers

If that doesn't work, then try replacing the LSI SAS card.

@bradthetechnut​ is not a card, is integrated on the motherboard

It's integrated LSI SAS and the whole motherboard may need to be upgraded if it's LSI SAS controller issue.  

Or a substitute card could be added 

https://www.ebay.com/itm/134490164220 

by example

Thank you.  Checked the link it's "9300-8i LSI SAS3008 8-Port 12Gb PCIe IT mode ZFS FreeNAS unRAID US".  Is anyway I can check the compatibity with additional controller in my Dell T7910 model?

Well, dell indicated the  LSI MegaRAID® SAS 9341-8i 12Gb/s SAS (6Gb/s SATA) PCIe controller  as the optional in their own catalog , at the time

I suspect any 9300 -8i and 9300-16i will work, and probably any other variation in the 93xx range

Thank you.  I will order one and give it a try.  Hopefully no any data loss. 

if you go with the same chip ( so one based on a 3008 ) probably will be the safest choice

@mazzinia_​ 

Thanks for the correction. 

@mazzinia_​ Thank you