VALKYRIE Posted January 15, 2015 Share Posted January 15, 2015 Hello, I always wanted a case with full vertical airflow and the Silverstone Fortress FT02 have basically such sort of airflow but the I/O motherboard connectors of that case are at the top, and I wanted the I/O motherboard connectors to be closer to the bottom, this is the reason I took the Cooler-master Centurion CM590 and rotated 90 degrees the whole case to get the I/O connectors at the bottom. The other important modification was the ventilation inside the PSU to follow the same ascendant airflow of the case itself. To achieve that I just turned upside down the San-Ace 80x15mm fan of my PSU, finally I want to explain that the aim of this modification is to get a case featuring low "Impedance" and therefore nearly all grills, mesh, filters and other obstacles to the airflow have been removed to achieve the maximum available airflow speed, below I attached some photos. http://www.arx-group.com/airflow1.html http://www.electronics-cooling.com/2003/05/how-much-heat-can-be-extracted-from-a-heat-sink/ http://www.em.avnet.com/en-us/design/technical-articles/Pages/Articles/Managing-Thermal-Dissipation-Tradeoffs-and-Constraints.aspx Case: Centurion CM590 MB: EVGA X79 FTW CPU: 4820K GPU: Galaxy GTX770 RAM/DIMM: Crucial VLP 2X8Gb Ballistix DDR3-1600-1.35V PSU: Power & Cooling Silencer 910W HHD: HGST 2.5" Z7K500 Travel-star 7mm Case fans: Noise-blocker PK3. PSU fan: Sanyo-Denki 80x80x15mm Link to comment Share on other sites More sharing options...
VALKYRIE Posted January 15, 2015 Author Share Posted January 15, 2015 I cannot change the the profile settings, yes I can change and save the changes, but nothing is changing, can a moderator help me please? Link to comment Share on other sites More sharing options...
knud Posted January 16, 2015 Share Posted January 16, 2015 Please send me a PM and I'll help. (ALso let me know, what you want changed) Link to comment Share on other sites More sharing options...
VALKYRIE Posted January 18, 2015 Author Share Posted January 18, 2015 PSU modification: Hello, one very important modification for this project was the modification of the airflow inside the power supply. The original ATX power supply airflow has a fundamental flaw because was designed many years ago to pull warm air from inside the case. To sort out this problem I just reverse upside-down the 80mm fan to allow the PSU to suck fresh air from outside the case. An extra modification made to reduce significantly the well known noise problem of the 80mm fans was to install a thin San-ace 80x80x15mm fan which has been made with low pitch blades. Also because of the higher efficiency PSU, the amount of cooling airflow needed by the PSU has been reduced. With this three modifications plus the fact that now the PSU is standing vertically at the bottom of the case, I have been able to achieve a fresh working and extremely quiet PSU. Below some images for better understanding the PSU reversed airflow Notice: Because the PSU is vertically standing at the bottom of the case, the PCB inside the PSU is also in vertical position receiving vertical airflow, which is the best known way to cool down a PCB. http://www.arx-group.com/airflow1.html Link to comment Share on other sites More sharing options...
VALKYRIE Posted January 22, 2015 Author Share Posted January 22, 2015 Motherboard Tray Modification: Hello, A few details about the motherboard tray modification. Because the location of the cut-out to pass the PSU cables behind the mobo tray was not adecuate for my 18 cm long PSU, I decided to re-build the whole mobo-tray moving the cut-out to pass the cables and by the way using 2mm thick steel, below are shown some photos of the new and the original tray. I decided to use rubber stand-offs instead of the metal version because after turning the screws the metal stand-offs have a tendency to punch through the fibre glass. Link to comment Share on other sites More sharing options...
ST.o.CH Posted January 22, 2015 Share Posted January 22, 2015 That mb tray is looking good, keep on the good work. Link to comment Share on other sites More sharing options...
VALKYRIE Posted January 24, 2015 Author Share Posted January 24, 2015 Top Twins Exhaust 140mm Fans and Bracket: Hello for the top 140mm exhaust fans I for the moment have chosen two (2) Noise-blocker PK3, but some Yate-Loon D14SH-12 PWM are there already waiting for an eventual replacement, the Noctua 140mm 3000RPM Industrial fans draw 0,6-0,7 Amps each and if connected both simultaneously to the same motherboard connector which allow for (let say) 1 Amp max, I think something can be damaged. I build a bracket for this twins 140mm exhaust fans which use seven of the available 5,25" front bays. I did this bracket because the original CM brackets available for this case only support 120mm fans, below some photos of the bracket with the 140mm fans and the red nose/spinners. Link to comment Share on other sites More sharing options...
VALKYRIE Posted January 24, 2015 Author Share Posted January 24, 2015 Hello, please can a moderator help?, I only can now attach 8KB of photos which is nothing , this allow of just a small photo as shown above Link to comment Share on other sites More sharing options...
knud Posted January 26, 2015 Share Posted January 26, 2015 You can now attach pictures up to 2MB. Please try again. Link to comment Share on other sites More sharing options...
VALKYRIE Posted January 26, 2015 Author Share Posted January 26, 2015 Thank you , now is working Link to comment Share on other sites More sharing options...
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