Hi,
My old FreeNAS build was based on a SuperMicro X7DVL-E Motherboard. The board will no longer boot / post and I believe from the symptoms it may be something to do with the CPU.
LE5 (Yellow) is on and LE4 (Green) is on. According to the X7DVL-E Manual this suggests that the CPU is initialising, however I don’t exactly know what that means.
The CPU fan is not spinning. I tried a different case fan in all of the fan connectors on the motherboard (including CPU 1 Fan connector) and it worked fine. The CPU fan on the CPU Heatsink, is a four pin fan (Yellow, Black, Blue, Green). Iv’e taken it off and tried to fire it up using a 12v supply from a 12v ATX PSU. I connected the yellow and black to a red and black and got nothing. I was however able to power a different 4 pin fan using the same method. Could one of the other pins act as a fail safe sensor to tell the motherboard whether the fan is working or not and based on the feedback, prevent the board from fully powering up?
On page 2-12 it mentions an overheating and fan fail LED. I guess I should connect an LED and see what it says.
I’d get a fan working, if it isn’t detected the system may not boot for fear of overheating. I think you can just plug a regular 3 pin fan into the header for testing.
I’d also replace the memory battery for the BIOS, funny things happen when those get low.
Have you looked in the IPMI to see if there are issues, or is this old enough that it doesn’t have an IPMI? It’s been a few years since I had something this old and can’t remember when they started using the IPMI (I think it was X8 boards).
This really is not worth your time to debug. X8, X9 and even X10 hardware can be had almost for free. Time to upgrade.
I’ve already picked up a replacement X11SSH-LN4F, just like to find out why things don’t work and fix em 
Any idea what the fan part number is, buying another with a HeatSink is a waste of money and they are very expensive.
Intel E30325-001
Something’s failed on the board. It’s very old. This happens.
Likely on the old board you just have a bad fan. Swap it with a test (or replacement) one that works with the same pin count. The IPMI will likely tell you if it is the fan and will also tell you if everything else is okay like power supply voltages and other fans in the system. The board I don’t think will boot if a fan is bad as it is a server board.
Supermicro makes heatsinks for their server boards that have fans on them (active cooling) that will fit most of their chassis. You can usually find them fairly cheap.
Sorry I’d never heard of IPMI before, how can you access it if the board does not boot?
If it has IPMI, you point a java capable browser at its address and log in, but it will be very basic compared to the x11 board you just bought. But I’m not sure if that old board even has IPMI and all my x7 boards have gone to the recycler.