First of all I had no idea where to publish this since I have no idea what is causing this problem, graphic card, motherboard or power supply.
I'm sure this is not a coil whine issue because the sound is different and also is indifferent of what I'm doing. This is not a game machine, is a working machine. The noise is constant but you'll noticed in the video that every minute the sound is very clear and identical to a HDD.
I do not have a HDD in this machine. I have 2 SSDs so the noise is not coming from there.
Clearly the noise is coming from where the graphics are but then again, it can also coming from the CPU or the PSU.
My PC components are as follow:
Asus P7P55 WS
Intel i5 760 2.80GHz
G.Skill DDR3-1333 PC3 - 12Gb
Samsung SSD 840 EVO 120Gb
OCZ Vertex2 120Gb
I have 3 Nvidia Quadro NVS 290 graphic cards which I have connected 6 monitors.
Everything has been working fine for the last 5 years till last month where I started to noticed some horizontal lines on my main monitor.
I than noticed that those lines become more noticeable every time that noise is higher, which made me assume this would be graphic card related. But I already tried to only have 1 card connected, change cards between the several PCIe slots and the result is always the same, the noise and the lines in the main monitor.
So the problem cannot be graphic card related because it would mean that all 3 cards got damaged at the same time.
So now I'm thinking could this be PSU related, CPU related, the motherboard itself that might be damaged?
I made a video where you can can see and hear what I'm talking about.
The horizontal lines are not that visible but it's possible to noticed them. I also show the second monitor where the lines cannot be seen (it's only the main one) mas again, filling a screen with your cellphone is not the beat choice.
When I move to the tower, notice minute 2:12, 3:13 and 4:12 where clearly we can hear that sound similar to a HDD working. The sound can be heard during the entire time I'm shooting the tower but at those seconds the sound becomes different, louder.
http://www.screencast.com/t/y3wbKv1JWl
This weekend I'm going to disconnect everything, clean all, change thermal paste to see if changes something but the connection between the sound and the horizontal lines in the screen is what concerns me.
Thanks.