LSI 9211-8i causes RAM slot one to be disabled

[dbhnyc]

I have a Dell Vostro 3670 with a LSI 9211 in the PCIe slot. I have installed Truenas on and it is working fine except that RAM slot 1 is showing as empty in the BIOS. I have 2 - 8gb DIMMs installed.

I have swaped DIMMs and still no slot 1. If i remove the LSI card the bios shows both DIMMs. I have checked BIOS settings and don't see anything that would effect it.

I can live with 8gb if I have to but I am stumped why it is happening. I have done a bunch of searching on this but no dice.

Thanks for any help.

 

[contractcooker]

Modding a Dell Perc 6 / Dell H310 / Dell H710 (other LSI 1078 or 9223-8i based) SAS Raidcontroller

Last week I was working on my new fileserver. To ensure my data will be a bit safer I will use a RAID solution. In my storage I had a Dell ...

yannickdekoeijer.blogspot.com

 

[dbhnyc]

I moved the card to a different PC and had the same issue. I moved it back an all the memory now shows up.

I could be a seating issue or dirt/corrosion on the contacts. Or maybe a flaky card. I will keep an eye on it but so far so good.

Thanks

 

[HoneyBadger]

Modding a Dell Perc 6 / Dell H310 / Dell H710 (other LSI 1078 or 9223-8i based) SAS Raidcontroller

Last week I was working on my new fileserver. To ensure my data will be a bit safer I will use a RAID solution. In my storage I had a Dell ...

yannickdekoeijer.blogspot.com

Specifically, check the comment replies - several users report that taping over the B5/B6 SMBus pins allows their systems to see the full RAM capacity - see thumbnail below.



(Although that comment section needs to fry a bit of the Spam.)

 

[GBillR]

I had a similar issue with an Intel PCI-e ssd and my Supermicro X11 board. The solution was to reposition a jumper on the motherboard to disable the PCI-e slot's SMBus. Does your board support disabling the SMBus via a jumper or perhaps via BIOS?