Posted June 30, 2015 I have made a little cooling fan for my router cause it doesnt have one and it doesn't run at full speed. It is a 12V fan and USB only provides 5V. If i connected the 2 other wires from another 5V USB would it provide the an 10V therefore making it run faster? ALCATRAZ | CPU: i9 9900k @ 5GHz, Motherboard: Asus Prime Z390-A, RAM: Corsair Vengence LPX 32GB, GPU: Gigabyte 1070Ti Case: Zalman MS800 Plus, Storage: Corsair 2TB NVME | Crucial M550 128GB SSD | WD 640GB HDD, PSU: XFX Pro Series 1050w, Display: ASUS MG279Q, Cooling: Noctua NH-D15 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 probably try it Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 I have made a little cooling fan for my router cause it doesnt have one and it doesn't run at full speed. It is a 12V fan and USB only provides 5V. If i connected the 2 other wires from another 5V USB would it provide the an 10V therefore making it run faster? You would have to connect it in series but I'm not sure how much the USB ports would like that If I recall correctly it would short out the 5V USB line so it's not a good idea. It would be better off to go with a wall adapter or use a buck boost to increase the voltage to the 12V you require. Note most USB ports only supply around 0.5A. Updated Modding FAQ Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 The fan will run at 5V, even better as it will be very quiet. I'm pretty sure adding two 5v sources won't change the voltage. You will either gonna have to get a voltage booster or just run it at 5v EVGA SR-2 / 2x Intel Xeon X5675 4.4Ghz OC / 24GB EEC 1800Mhz OC/ AMD RX570 / Enermax Evoliution 1050W / Main RAID 0: 2x256GB 840EVO SSD / BackUp(1) Raid 5: 3x2TB WD HDD / BackUp(2) 8x2TB / Dell U2412M / Dell U2312HM Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Dont. The USB's have the same source.It would be like connecting it like this:Please dont short out your router..Get one of these instead, With this you can change the voltage to a balance where it isnt too loud and isnt too slow.http://www.amazon.com/Universal-Power-Adapter-Output-1-5-3-4-5-6-7-5-9-12/dp/B00GO8LJ6Q/ref=sr_1_4?ie=UTF8&qid=1435696386&sr=8-4&keywords=ac+dc+variable+power+supply&pebp=1435696399337&perid=14B9X042QMPQ8V5AT45J My Gaming PC|| CPU: Intel i5 4690@4.3Ghz || GPU: Dual ASUS gtx 1080 Strix. || RAM: 16gb (4x4gb) Kingston HyperX Genesis 1600Mhz. || Motherboard: MSI Z97S Krait edition. || OS: Win10 Pro ________________________________________________________________Trust me, Im an Engineer Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Author Dont. The USB's have the same source. It would be like connecting it like this: USB in series.png Please dont short out your router.. Get one of these instead, With this you can change the voltage to a balance where it isnt too loud and isnt too slow. http://www.amazon.com/Universal-Power-Adapter-Output-1-5-3-4-5-6-7-5-9-12/dp/B00GO8LJ6Q/ref=sr_1_4?ie=UTF8&qid=1435696386&sr=8-4&keywords=ac+dc+variable+power+supply&pebp=1435696399337&perid=14B9X042QMPQ8V5AT45J How could i change the voltage of the fan with connectors like those? Also the router is not connected at all to the fan. I have the fan seperate. ALCATRAZ | CPU: i9 9900k @ 5GHz, Motherboard: Asus Prime Z390-A, RAM: Corsair Vengence LPX 32GB, GPU: Gigabyte 1070Ti Case: Zalman MS800 Plus, Storage: Corsair 2TB NVME | Crucial M550 128GB SSD | WD 640GB HDD, PSU: XFX Pro Series 1050w, Display: ASUS MG279Q, Cooling: Noctua NH-D15 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Did it by myself for summer... Doesn't look great but it works... I used a normal USB cable, splitted it and used the red/black wires to power the fan. i7 6700k - 32GB DDR4-2133 - GTX 980 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Author Did it by myself for summer... Doesn't look great but it works... I used a normal USB cable, splitted it and used the red/black wires to power the fan. What cable is connected to the four pin connector? *Edit: I saw now But does it run very fast? Mine isnt blowing very much air. ALCATRAZ | CPU: i9 9900k @ 5GHz, Motherboard: Asus Prime Z390-A, RAM: Corsair Vengence LPX 32GB, GPU: Gigabyte 1070Ti Case: Zalman MS800 Plus, Storage: Corsair 2TB NVME | Crucial M550 128GB SSD | WD 640GB HDD, PSU: XFX Pro Series 1050w, Display: ASUS MG279Q, Cooling: Noctua NH-D15 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 How could i change the voltage of the fan with connectors like those? Also the router is not connected at all to the fan. I have the fan seperate. You should not put different power supplies in series nontheless, One of the supplies will take all the load. You just cut off the connectors or something, You are strapping a fan to your router so cutting off the cable 4-6cm from the connectors isnt very drastical. You could just solder it back on if you regret it. My Gaming PC|| CPU: Intel i5 4690@4.3Ghz || GPU: Dual ASUS gtx 1080 Strix. || RAM: 16gb (4x4gb) Kingston HyperX Genesis 1600Mhz. || Motherboard: MSI Z97S Krait edition. || OS: Win10 Pro ________________________________________________________________Trust me, Im an Engineer Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 (edited) How could i change the voltage of the fan with connectors like those? Also the router is not connected at all to the fan. I have the fan seperate. If you want the fan to run at full speed all the time this will be perfect: http://www.amazon.com/Wall-Adapter-Power-Supply-12VDC/dp/B006GEPUYA For a Buck boost that will let you cary vary the voltages or use the 5V USB line and boost it to 12V: http://www.amazon.com/Switching-Regulator-Converter-Adjustable-Stabilizers/dp/B00BYTEHQO/ref=pd_sim_23_3?ie=UTF8&refRID=056GQ8PPZR9XWNC35HG5 Edited June 30, 2015 by W-L Updated Modding FAQ Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 @Subduck: Just a normal USB cable with a conventional USB power supply. Not really fast, but enough for me (and I'm pretty sure for a router too) i7 6700k - 32GB DDR4-2133 - GTX 980 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Author If you want the fan to run at full speed all the time this will be perfect: http://www.amazon.com/Wall-Adapter-Power-Supply-12VDC/dp/B006GEPUYA That is exactly what i needed! And it looks like I also have one. Thanks mate! ALCATRAZ | CPU: i9 9900k @ 5GHz, Motherboard: Asus Prime Z390-A, RAM: Corsair Vengence LPX 32GB, GPU: Gigabyte 1070Ti Case: Zalman MS800 Plus, Storage: Corsair 2TB NVME | Crucial M550 128GB SSD | WD 640GB HDD, PSU: XFX Pro Series 1050w, Display: ASUS MG279Q, Cooling: Noctua NH-D15 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 That is exactly what i needed! And it looks like I also have one. Thanks mate! Just double check with a multimeter since some of the non-regulated ones even though it says 12V runs at a higher range of ~13-16V. Updated Modding FAQ Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Author Just double check with a multimeter since some of the non-regulated ones even though it says 12V runs at a higher range of ~13-16V. Will do. ALCATRAZ | CPU: i9 9900k @ 5GHz, Motherboard: Asus Prime Z390-A, RAM: Corsair Vengence LPX 32GB, GPU: Gigabyte 1070Ti Case: Zalman MS800 Plus, Storage: Corsair 2TB NVME | Crucial M550 128GB SSD | WD 640GB HDD, PSU: XFX Pro Series 1050w, Display: ASUS MG279Q, Cooling: Noctua NH-D15 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted June 30, 2015 Or you could use 2 USB ports to almost double the speed of the fan... i7 6700k - 32GB DDR4-2133 - GTX 980 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 1, 2015 Author Or you could use 2 USB ports to almost double the speed of the fan... I dont have a 3 pin connector on the end. And im not sure which wire is red or black because the wires aren't colour coded. When i got it working first time i think it was luck Or something broke and now it is not working. http://prntscr.com/7ngo34 ALCATRAZ | CPU: i9 9900k @ 5GHz, Motherboard: Asus Prime Z390-A, RAM: Corsair Vengence LPX 32GB, GPU: Gigabyte 1070Ti Case: Zalman MS800 Plus, Storage: Corsair 2TB NVME | Crucial M550 128GB SSD | WD 640GB HDD, PSU: XFX Pro Series 1050w, Display: ASUS MG279Q, Cooling: Noctua NH-D15 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted July 1, 2015 Just try until it spins! In a USB cable there's normally 3 or 4 cables: Data (normally green and white) and Power (red and black). Either it spins or not. (With some some fans it spins backwards if you get it wrong. Usually it doesn't work when the two cables touch each other. I used needles to solve this problem. With photos: i7 6700k - 32GB DDR4-2133 - GTX 980 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2015 Or you could use 2 USB ports to almost double the speed of the fan...can you show us how you managed to attach 2 USB ports? can you explain it to for the noob? Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2015 I just tied the red wire of the first cable together with the black wire of the second cable and used the remaining wires... i7 6700k - 32GB DDR4-2133 - GTX 980 Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2015 can you show us how you managed to attach 2 USB ports? can you explain it to for the noob? Welcome to the Forums! I highly don't recommend to connect it in series it shorts out the 5V USB power line with itself from the PSU, most boards have a short circuit protection circuit built in to make it work but it's not ideal. A better solution is to use a buck boost converter to raise the voltage. Updated Modding FAQ Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2015 Welcome to the Forums! I highly don't recommend to connect it in series it shorts out the 5V USB power line with itself from the PSU, most boards have a short circuit protection circuit built in to make it work but it's not ideal. A better solution is to use a buck boost converter to raise the voltage. thank you well I tried attaching 2 USB cables in series but the fan speed was still the same (slow) plus I even tried single USB connection with my phone charger but still the fan speed was same and I can't order/afford such converter in my country (Pakistan) BTW I experimenting on Cooler Master Sickle Flow X (2000 RPM), I want it to run at full speed via USB for my laptop cooling solution Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
Posted August 10, 2015 -SNIP- The buck boost converters aren't very expensive from Asia, but if you have 12V wall adapter that would work just as good and let you connect more fans than a USB port since most are only capable of 0.5-1Amp. Updated Modding FAQ Link to comment Share on other sites More sharing options... Link to post Share on other sites More sharing options...
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