Had been running this pi for 24x7 for about a year now and it has been running fine until I realized that it was down just now when I went to do some checking.
Heard some noises too and now I can't seem to get it back up (noise + PWR lit + dim ACT light only).
Model: Raspberry Pi B
OS: Raspbian
Things attached to the pi: LAN cable, SD Card
Video to demonstrate the noise that the pi makes: https://drive.google.com/file/d/0BwiJswXag8O4dkNKbmlmRVBKOW8/view?usp=sharing
Note: I'm using Powerbank to power the pi up just for the sake of taking the video, normally it is attached to a better power supply.
Symptoms:
1. Red PWR light
2. dim ACT light
3. Noise made as per video above
Things that I've tried:
1. Changing the Power Supply(tried from my original source to genuine Pineng Powerbank to Nokia's official charger to Xiaomi's official charger to the charger that was shipped with the pi)
2. SD Card (it was working on the other pi and the other sd card that I've put into from the other pi doesn't work)
3. LAN cable
4. HDMI - No output
5. Composite - No output
6. Heating it up (https://www.youtube.com/watch?v=AwF6v-4NFdg)
7. Holding the sdcard slot to ensure that the issue isn't with the sd card slot
8. R-Pi Troubleshooting - eLinux.org (the "Red power LED is on, green LED does not flash, nothing on display" part)
