Cheers and thanks. Off to the shop tomorrow for glue. They hide it away don't they haha

Hi guys, really quick one.
Currently having issues with beeping on my S5. It's intermittent and not really an issue apart from it may start to bother my flatmate next door.
I feel like putting tape over the speaker may suffice however I'm not really sure where it is actually located 
Anybody help me out? Not having any luck finding info online.
Cheers

Hi guys,
Fairly new to mining and first time posting.
In short I recently bought a second hand Antminer s5 as a cheap introduction to mining.
It worked, as far as I can tell, 100% for the first period I had it. However now it displays some red lights and a lot of hardware issues on my miner status screen.
It still mines and at times still hits 1.1TH (full capacity) but it can drop down to zero for a few hours at a time before kicking back into gear.
For example today it has averaged 300GH/s for the day and for the last hour about 950GH/s. So it still mines,just not at 100% efficiency or consistently.

So there is a red light behind the front left and back right PCI connectors (If you are standing facing the fan and ethernet slot) and also one on the green hashing board on the top side, it is situated by the Antminer logo, I believe it corresponds to D5.

Haven't had any luck online finding what the lights correspond to.

Pictures are attached.
Thanks for any help guys.

https://ibb.co/btKz4c
https://ibb.co/eKXfAH
https://ibb.co/nornPc

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(Moderator's note: This post was edited by frodocooper to remove inline image tags.)