I'm a frequent visitor of your website and I'm not really new to this silencing "fetish" of ours, but this will be my first post on the SPCR forum.
So I will start right away with the presentation of my new rig. Took me about 2-3 months to choose the parts, buy them and do the thermal and acoustic tuning.
With these parts I found a good balance between performance, powerdraw and heat developpement
Corsair HX-520W PowerSupply
Athlon X2 4850e (2,5GHz; TDP: 45W)
Asus M3A32-MVP Deluxe
2*2GB OCZ DDR2-RAM PC8000
Sapphire Ati Radeon HD4850 Toxic (Factory OC)
Terratec Aureon PCI SoundCard
ThermalRight HR-01 Plus
ThermalRight HR-03 GT
4* Nexus fans (3 B/W + 1 Orange)
1* Noctua NF-S12-800
3* Zalman FanMate2
WD VelociRaptor 320GB (inside of Scythe QuietDrive)
WD Scorpio 250GB 2,5" (inside of Scythe QuietDrive 2,5") in the bottom drive bay
The fan mounted on the HR-01 is running at +/-900rpm and the exhaust fans are running at the Fanmate minumum (+/-750rpm reported by the BIOS). The Intake fan is running at +/-780rpm and is blowing directly onto the graphic card.
As you can see the CPU + GPU are cooled in a more or less passive way. I installed some cardboard to optimize the airflow and extract the hot air from the CPU and GPU directly.
BTW: I did some experiments with the ducting and that's the configuration that gave me the best results.
Now let's get ready for the temps:
case: 31 C
CPU: 35 C
GPU: 40 C
Full Load (1 CPu Burn-in + Unigine 3D Tropics Demo):
Case: 33 C
CPU: 47 C
GPU: 69 C + 55 C environment
In this case I'm glad I chose the 45W CPU. The exhaust at the top would have to handle much more heat otherwise.
Since I don't have any testing equipement I will give you my general impressions.
When the Computer is running in my quiet room (2-3am in the morning), I can hear a slight airflow "hum" when sitting at my desk. But the whole rig is inaudible when I'm about 2m away.
During the day when sitting at my desk I can barely notice the rig, the little noise it makes is almost drowning in the light flickering of my Samsung 24" LCD.
Therefore the new rig is not silent, but very quiet.
Some other pics:
I did a bit of modding on the front: I cut open intake vents to get more fresh air onto the GPU
And here the whole desk:
And yes, it is our friend Tux on my desk
Feel free to leave any comment or to make any suggestion