Thanx for all the input! I am aware of the good results of large, slow-moving fans, which are indeed almost inaudible. But I am striving for fully fanless, just as is described here: http://www.computeraudiophile.com/content/497-computer-audiophile-pocket-server-c-p-s-v3-zuma/ This is an audio-pc wh...

Yes, lesson learned!

Now I have another question, related to this.

What is your experience with fully fanless systems? Can in your experience a good motherboard and good memory operate without defects for years without _any_ airflow?

Ok, I learned the following: in order for the BIOS to startup you need at least 1 ram module inserted, without ram the system/BIOS cannot start up and thus will give no graphics output. It turns out 1 of my 2 ram modules is faulty. With the faulty module inserted the system/BIOS cannot startup. The ...

Yes, I have done all possible troubleshooting, afaik. I did the following: disconnect everything except cpu connect the mainboard to a working Seasonic G-550 psu connect a chassisfan This results in a lit SB_PWR led on the mainboard (but apparently this always lights up when it detects at least 5V)....

I have built a Caps zuma audio-pc based on Intel 4670T cpu + Asus H87M-E mainboard + Streacom FS5ws case + Streacom nano150 psu. For reference, it looks similar to this: http://www.computeraudiophile.com/content/497-computer-audiophile-pocket-server-c-p-s-v3-zuma/ This combination worked fine for mo...