I had this board up and running many years ago.  I had a power supply short out and totally lost the board.  Ordered a new one but before it came in I purchased locally a new X58 SLI FTW3 and thus I have not touched the older original X58 SLI for years.  Still installed the original Core i7 920/Dual Video Cards which was in during the power supply shorting totally out.  I put new memory in it and thought I would fire this system back up just today after all these years.  I get power/lights/fans but no beeps or codes.  I've removed the battery and totally cleared the BIOS but still same thing.  I would say that the processor is dead the day it shorted out but would like to hear it from someone else other then just me since I'm a bit out of date on being an expert on this.  I can buy a new one but do respect your comments before I just go grab a new one.. maybe a i7 960 Extreme or something better.  So, keep in mind that power supply shorted for what ever reason and let the smoke out of it kind of short!  Would you think the motherboard would have not only been the only thing to fry?

Sajin, thanks for the help here.  Just took a look and actually forgot about the display inside.  I just fired her up and seen 1F, C1, 25, F3, 68.... after 30 seconds it settles on F3 then 68.  It continues to run and never shuts off.  Just no beeps or screen at all.

Thanks.  On it now.
 

#1 Remove all ram from system.
#2 Try a different stick of ram in dimm slot #2. Second gray dimm slot closest to cpu. 
#3 If you get the same 68 code try moving the same stick to farthest gray dimm slot.

Done.  Same results with the other DIMM.  From 2nd and 3rd slots.  FYI.  I let it run longer this time in both slots then I initially did.  I said it does not power down.  It does and then restarts itself.  I didn't give it enough time initially.  However, same codes..
 
 

standby

Based on what you have said I would recommend testing another cpu.

No problem. Please report back when you get the other cpu installed. 

If you have the EVGA FTW3 there are hexcore xeons x5660 that will run in that board.
I have 2 FTW3 and run x5660 CPUs, they overclock to 4ghz fairly easy , BCLK unlocked
They are selling on ebay for 32$. That is a lot of CPU for 32$
There are w3680 hexcores that are multiplier and BCLK unlocked like the 980x they are selling for 80$
Buy from a parts recycler, these CPUs are server pulls.
 
If you want cheaper there are x5620 quad cores for around 10$ or less, server pulls

Intel Xeon X5660 Hex 6 Core 2.80GHz 12MB 5.86GT/s LGA 1366 Server CPU SLBV6 'ON IT's WAY". 

I am not 100% sure what other board you have, but the xeons do not run natively on all EVGA boards.
FTW3, Classified3 and SLI3, some other boards with a REV 1.2
maybe you can post the exact model number on the sticker on the board, not the ser#
3x SLI ftw is not ringing a bell for me, there was a, SLI3, and a, 3 way SLI
If by chance it does not work on the board, you can just put the xeon in the FTW3 and the 920 back where it was.
Keep us posted.
PS:
Sorry to hear of your health issues.
Thank you for your service to the country. Freedom is not free.