techPowerUp! Forums - View Single Post - Problem after connecting case fan to 5V from PSU

Derek12 · Sep 9, 2011, 08:22 PM

I found, in my "junk box" a wall wart universal power supply with a selectable voltage output of 3, 4.5, 6, 7.5, 9, and 12V at 900mA and I though to use it as a "fan controller" so now I could adjust the fan speed and making the idea more reliable.

I plug that universal PSU on my strip and I connect the fan to its output, then I will be able to modify the voltage and therefore the speed, I will try to implement it soon

The only issue is that the fan cables must go out of the case to connect to that PSU so it could be a bit botched job lol

System Name:	Custom Built \| Netbook Samsung N145P
Processor:	Intel Celeron G530 \| Intel Atom N455 1.6 GHz
Motherboard:	Gigabyte GA-H61M-S2-B3
Cooling:	Stock heatsink/fan
Memory:	2 GB Kingston 1333 DDR3 \| 1 GB DDR3
Video Card:	POV Nvidia Geforce GT520 \| Intel GMA 3150
Hard Disk:	Toshiba MK3265GSX 320GB \| WD Scorpio Blue WD2500BEVT
Optical Drive:	None
CRT/LCD Model:	-
Case:	A old one
Sound Card:	VIA
PSU:	Generic 500W
Software:	Windows 7 64-bit, Windows 8 DP \| Windows 7 64-bit/Xubuntu 12.10 64-bit

Sep 9, 2011, 08:22 PM	#64
Derek12 Join Date: Jan 2010 Posts: 925 (0.76/day) Thanks: 480 Thanked 142 Times in 134 Posts System Specs	I found, in my "junk box" a wall wart universal power supply with a selectable voltage output of 3, 4.5, 6, 7.5, 9, and 12V at 900mA and I though to use it as a "fan controller" so now I could adjust the fan speed and making the idea more reliable. I plug that universal PSU on my strip and I connect the fan to its output, then I will be able to modify the voltage and therefore the speed, I will try to implement it soon The only issue is that the fan cables must go out of the case to connect to that PSU so it could be a bit botched job lol