What Does this Beeping Sound Mean? My DELL XPS System Crashed During a 75 min GT3 Race at Road America in iRacing

I was in a 75min GT3 race in iRacing, when about an hour into the race my DELL computer seemed to lock up... The screen went black and horrible sounds came from the speakers.

Nothing was happening, so I tried to do a CTRL+ALT+DEL but still that didn't work either.  So had to press the power button on top.

Then it was making these beeping sounds. Does anyone know what it means?

It wasn't a particularly hot day to cause the computer to overheat, but who knows? It's never beeped at me like this before.

My computer is a DELL XPS, I think about 4 years old now.

Intel I7

8 GB RAM

2 TB HDD

Radion 5000 Series GFX

Thanks in advance for any tips or advice.

My Return to PC Sim Racing

I spent some time recently playing around in Race 07 (with all it's expansions), I thought this would be a good way to ease me back into PC Sim Racing having not really driven them for the last few years...  Here's how it went...