Please help me locate motherboard documentation and diagram

Question

I have purchased a Lenovo IdeaCentre K320-30192GU. For some strange reason, none of the manuals and none of the info on the Lenovo support site make any reference whatsoever to the motherboard. After a long session with the tech person at Lenovo support I was told that no information could be given to me that wasn't already on that site. (I have never owned a computer for which this information was not available.)  I would like to know the motherboard's ID and a documentation source. Some posts made reference to an app that would identify the processor, but this is not what I want. Any help would be very much appreciated.

Answer 1

Nevermind, I thought(hoped) there were going to be some videos, but I think it may mean:
the text from the disclosure triangles.  I feel dumb, oh well...
ES2 Tutorial:  Creating Sounds
ES2 Sound Design from Scratch, Filter Settings, Digiwaves 
Creating Fat ES2 Sounds with Oscillator Detuning and Unison Mode
Creating Detuned Monophonic Sounds and Effects with the ES2
Creating Clean Single-Oscillator Bass Sounds with the ES2
Creating Distorted Analog Basses with the ES2
Using FM Intensity and Frequency to Create ES2 Sounds
Controlling ES2 FM Intensity with an Envelope and FM Scaling
Using FM Drive and Filter FM to Change the Color of ES2 Sounds
Creating FM Sounds with Digiwaves in the ES2
Creating FM Sounds with Wavetables in the ES2
Creating Distorted ES2 FM Sounds with Monophonic Unison
Creating FM Sounds with Unusual Spectra in the ES2
Setting Pulse Width Modulations with Oscillator 2 in the ES2
Creating ES2 String Sounds with Pulse Width Modulation
Creating Sounds with Ring Modulation in the ES2
Creating Sounds with Oscillator Synchronization in the ES2
Getting Started with Vector Synthesis in the ES2
Using the Planar Pad for Vector Synthesis in the ES2
Using Vector Synthesis Loops in the ES2
Creating ES2 Bass Drum Sounds with a Self-Oscillating Filter and the Vector Envelope
Creating Percussive ES2 Synthesizer and Bass Sounds with Two Filter Decay Phases