SOLVED Water damage killed motherboard/ram. How to proceed

[stoffix]

So, as the title says I've been unlucky, and came home to a water damaged server. (IPMI was the only thing still working.)
It looks like a few water drops has landed on the top DIMM,
burnt a few of the pins and continued through the DIMM down on the next one and the next one after that again.
Here's a photo of the ram if you want to see some of the damage:


The hardware is a supermicro X9SCM-IIF with 32GB ECC ram. I don't recall which cpu is installed.
There's also an HBA card and 12 WD-raid disks configured as 1 pool consisting of two vdevs of raidz2. + 2 SSDs in a mirror for boot.

I tried removing the visually faulty ram, and all 12 storage disks but the server is stil dead.
Soo, ok. Whats happened has happened, and I've been lazy with backups so now I pay the price.

I've measured the output from the PSU which seems good, and ordered a new mb, new cpu and new ram.
Do you think my data is possible to restore, or completely lost?
Anyways I'll have to wait for the new parts to find out.
What would be the best way to approach this?

 

[Jailer]

Hook your HBA and disks up to a known working motherboard and see if they are still good. If they didn't get water damaged along with the other components the chances are pretty good that they are fine.

 

[stoffix]

Good to hear, I was thinking about simply rebuilding the server with a new motherboard, running memtest and then try to boot Freenas. That would accomplish the same no?
I guess I should run a scrub as well if everything is not lost?

 

[Redcoat]

I lost two servers back in August from water damage as the local fire crews dealt with a fire that destroyed our house. Both servers were dead afterwards - their power supplies lost one or more outputs. The 4 HDD's and their pool data from my FreeNAS Mini were fine installed in their new system, I'll find out about the six in my Dell C2100 shortly when all the parts are here to build its replacement later this week. Visually the C2100's drives were much "cleaner" post-fire than those from the Mini so I'm hopeful.
I hope to hear good news from your testing with a known good system. Good Luck!

 

[stoffix]

That's positive to hear! I hope your other data is ok as well, and I'll make sure to let you know how it works out for me :)

 

[stoffix]

So I've got my server rebuilt, and as far as I can tell all the data is intact :D

Code:

root@filtjener:~ # zpool status
  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0 days 00:00:16 with 0 errors on Sun Jan 26 05:52:24 2020
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          mirror-0  ONLINE       0     0     0
            ada1p2  ONLINE       0     0     0
            ada0p2  ONLINE       0     0     0

errors: No known data errors

  pool: volume1
 state: ONLINE
  scan: scrub repaired 0 in 0 days 08:29:28 with 0 errors on Sun Jan 26 14:26:04 2020
config:

        NAME                                            STATE     READ WRITE CKSUM
        volume1                                         ONLINE       0     0     0
          raidz2-0                                      ONLINE       0     0     0
            gptid/2d272bd8-fa90-11e2-a1dd-002590ad21a8  ONLINE       0     0     0
            gptid/2d79d4b2-fa90-11e2-a1dd-002590ad21a8  ONLINE       0     0     0
            gptid/1ea16d1e-d873-11e7-896b-002590ad21a8  ONLINE       0     0     0
            gptid/2e254b45-fa90-11e2-a1dd-002590ad21a8  ONLINE       0     0     0
            gptid/2e7a6140-fa90-11e2-a1dd-002590ad21a8  ONLINE       0     0     0
            gptid/2ed24c2a-fa90-11e2-a1dd-002590ad21a8  ONLINE       0     0     0
          raidz2-1                                      ONLINE       0     0     0
            gptid/aba0cf9f-0a4c-11ea-be9e-002590ad21a8  ONLINE       0     0     0
            gptid/ac79e218-0a4c-11ea-be9e-002590ad21a8  ONLINE       0     0     0
            gptid/ad7989b9-0a4c-11ea-be9e-002590ad21a8  ONLINE       0     0     0
            gptid/ae823656-0a4c-11ea-be9e-002590ad21a8  ONLINE       0     0     0
            gptid/af897ed0-0a4c-11ea-be9e-002590ad21a8  ONLINE       0     0     0
            gptid/b09455a3-0a4c-11ea-be9e-002590ad21a8  ONLINE       0     0     0

errors: No known data errors

@Redcoat What's your status?

 

[Redcoat]

Good news both sides, I guess - my 6 disks were OK. The new system they are in has been spontaneously rebooting for reasons yet unknown so I'm hunting that down at present - not out of the woods on that one yet.