post #11 of 11
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Quote:
Originally Posted by Phaedrus2129 View Post
People occasionally short +12V and +5V to get +7V, and while I frown on this, it does work if used very sparingly.

On the other hand, combining +12V and -12V to get +24V is a bad, bad, BAD idea. Because the -12V is not generated in the same way as the other outputs on a power supply. Rather it's generated by an IC from the +12V rail. This IC generally cannot handle more than 0.5A of -12V current. A fan will very easily exceed this and blow the IC, which will in most PSUs cause the secondary control IC to call foul and not allow the PSU to operate (even if everything else still works). Thus the PSU will be effectively bricked.
Thank you, good to learn new things. Thats why I love OCN
    
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CPUMotherboardGraphicsRAM
Intel i7 4770K ASUS MAXIMUS VI HERO Gigabyte G1 Gaming GTX 980 Ti G-Skill TridentX 2400 
Hard DriveOptical DriveCoolingOS
850 PRO 256GB None Corsair H100i Windows 7 Ultimate 64-bit 
MonitorMonitorKeyboardPower
PG279Q U2414H G710+ Corsair AX750 
CaseMouseMouse PadAudio
Corsair 750D SteelSeries Sensei XTRFY DT990 Pro 250Ohms 
  hide details  
Reply