8 Beeps at random what's going on?

[Gecco]

My Pc started to beep 8 times.

Everything works, temps are fine and it boots to windows. Beeps happen at random approx 30 min to 1 HR apart.

PC specs in signature.

It's driving me nuts. At first I thought it was coming from our car or digital clocks in the house but as soon as I turn my pc off the beeping stops.

Doesn't seem to come from the speaker either as that is a lot louder...

 

[Gecco]

Nothing changed, updated chipset drivers last week.

Motherboard is 4 years old.

Switched the PC off at the power supply for 10 seconds. 20 minutes in so far no beeps

Edit: 24hrs No more beeping. Just hope whatever it was is not a sign of hardware failure

Google search suggested a GPU memory issue...