voltage upping?
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voltage upping?
posted on Wed Mar 26, 2003 9:31 pm
is there an easy/safe way to increase voltage on a line? so I could put MORE voltage through a fan?
- SpotTheCat
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posted on Fri Mar 28, 2003 11:51 am
Since there is a method for getting 5V, it sounds like, with two molex connectors you could get 17V by adding 12 to 5. The fan will probably take it, I have run fans on 18 V and I think most fans that are 12V will function at 17V ok. I don't know, though, if that would do any damage to the power supply. Maybe one of the electrical engineers here can comment on that.
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- JimiH
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posted on Wed Apr 02, 2003 4:46 pm
no, I have a few industrial aluminum ones that range from 12-35 voltsJimiH wrote:Since there is a method for getting 5V, it sounds like, with two molex connectors you could get 17V by adding 12 to 5. The fan will probably take it, I have run fans on 18 V and I think most fans that are 12V will function at 17V ok. I don't know, though, if that would do any damage to the power supply. Maybe one of the electrical engineers here can comment on that.
I want to up it a bit, as it spins very slowly at 12
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posted on Thu Apr 03, 2003 12:04 am
JimiH wrote:Since there is a method for getting 5V, it sounds like, with two molex connectors you could get 17V by adding 12 to 5. The fan will probably take it, I have run fans on 18 V and I think most fans that are 12V will function at 17V ok. I don't know, though, if that would do any damage to the power supply. Maybe one of the electrical engineers here can comment on that.
The difference between the two rails is what you'd get. You'd need -12 and 5 or 12 and -5 to get 17V.
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- yarbo
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posted on Fri Apr 04, 2003 7:36 pm
there is no -12 or -5 outside of the ATX connector.yarbo wrote:JimiH wrote:Since there is a method for getting 5V, it sounds like, with two molex connectors you could get 17V by adding 12 to 5. The fan will probably take it, I have run fans on 18 V and I think most fans that are 12V will function at 17V ok. I don't know, though, if that would do any damage to the power supply. Maybe one of the electrical engineers here can comment on that.
The difference between the two rails is what you'd get. You'd need -12 and 5 or 12 and -5 to get 17V.
I was thinking like this:
+12 volt, connected to ground of external 5 volt source, hot side of battery connected to + fan, ground of fan hooked up to PS ground.
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