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Help, trying to give a 16V rated fan 16V

post #1 of 3
Thread Starter 
my System Papst 120mm is 100CFM at 12v. its rated for a max of 16v though! so i tried giving it 15.3V with the 3.3V and -12V. the -12V rail has minimal amperage though, not even enough to give any hint of activity (barely enough to run a small 80mm fan, this monster consumes ~9W at 16V so it needs ~0.5A whereas the 80mm's needed .08 each (powered 2))
I REALIZE THE FOLLOWING WONT WORK..>SEE MY 2nd post. LOL I CANT BELIEVE I EVEN SAID THIS!!!
so i have a question: what if i hooked up two grounds to ground and 12v and 5v from a molex to the positive for a differential of 17V? would that work? meaning would that give 17V? i dont want to break the motor, but if it gives 17V i will try it as since its rated for 16v, it should be fine with this small overvolt
    
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CPUMotherboardGraphicsRAM
E6400 @ 3.6 GHz (450X8) GA P965 S3 7600GT 2GB OCZ Gold @ DDR 2 900 5-5-5-15 
Hard DriveOptical DriveMonitorPower
320GB Maxtor SATA2, 160 for XP, 160 for Slackware DVD+-RW EIDE 21" CRT by Sun Microsystems 680W Echostar 22A on 12V rail 
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Rosewill Black small Mid-T G5 
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post #2 of 3
NO... bad.
lol
you will wind up shorting out your PSU. You will be putting the two power supplies in parallel and what you want to do is put them in series. You can't put them in series either because it will require you to connect either the 5V or the 12V to one of the grounds.

Your best bet to overvolt fans is to get a cheepie 300W PSU and mod it.
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Monster Rig
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post #3 of 3
Thread Starter 
oh...DUH

god i am stupid zomg i knew that too thanks, of course the electricity will just run through the 12v wire then to the 5v and infinite current will be drawn there, causing a short circuit and possibly an explosion! :YAY:

so how about this: <formulates plan with pathetic cheezy evil laugh>
    
CPUMotherboardGraphicsRAM
E6400 @ 3.6 GHz (450X8) GA P965 S3 7600GT 2GB OCZ Gold @ DDR 2 900 5-5-5-15 
Hard DriveOptical DriveMonitorPower
320GB Maxtor SATA2, 160 for XP, 160 for Slackware DVD+-RW EIDE 21" CRT by Sun Microsystems 680W Echostar 22A on 12V rail 
CaseMouse
Rosewill Black small Mid-T G5 
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Reply
    
CPUMotherboardGraphicsRAM
E6400 @ 3.6 GHz (450X8) GA P965 S3 7600GT 2GB OCZ Gold @ DDR 2 900 5-5-5-15 
Hard DriveOptical DriveMonitorPower
320GB Maxtor SATA2, 160 for XP, 160 for Slackware DVD+-RW EIDE 21" CRT by Sun Microsystems 680W Echostar 22A on 12V rail 
CaseMouse
Rosewill Black small Mid-T G5 
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