HP Proliant ML350 G6 2 short beeps 3 times

[WafflesMcDuff]

I've got an HP Proliant ML350 G6. All green lights, nothing in iLO logs, IML, Diagnostics.

Yet for some reason every so often (haven't timed it but at least 10 minutes in between I'd guess) I get 3 series of 2 short beeps

Beep-beep, beep-beep, beep-beep

I'm using this as a home lab and it sits in my living room. Any ideas on how to diagnose this would be greatly appreciated,

[xdeetee]

2 short beeps
Floppy diskette or compact disc not detected

Check default boot order:

1. Floppy disk drive
2. Optical drive (DVD, CD-ROM)
3. Hard drive
4. USB device
5. Network adapter

Downgrade (1) and (2) or Change (3) to position (1) e.g.,

1. Hard drive
2. Optical drive (DVD, CD-ROM)
3. USB device
4. Floppy disk drive
5. Network adapter

OR

1. Optical drive (DVD, CD-ROM)
2. Hard drive