12v to 7v molex converter

[mdcrab]

Wasn't sure if these existed, but did a Google and found they are avail at Directron.

Probably easy to splice some wires, but if you are lazy like me or just want to check out difference, these might be the ticket. $3.99 ea or 5 for $15.

12v to 7v converter

 

[InlineFive]

7v isn't all that great as it feeds unused voltage back into the PSU using the 5v? line. Mine started whining really badly when I did this. It's much safer to run it at either 12v or 5v.

 

[Dman877]

Originally posted by: PorBleemo
7v isn't all that great as it feeds unused voltage back into the PSU using the 5v? line. Mine started whining really badly when I did this. It's much safer to run it at either 12v or 5v.

You get 7v by crossing 12v with 5v. It doesn't "feed unused voltage back to the psu." Voltage is a potential across two points.

 

[NewBlackDak]

Correct, but people have complained of problems on PSUs where all the rails are seperate.

Just add a 470K? resistor to the positive lead of your fan tail.

 

[Mday]

Originally posted by: Dman877

Originally posted by: PorBleemo
7v isn't all that great as it feeds unused voltage back into the PSU using the 5v? line. Mine started whining really badly when I did this. It's much safer to run it at either 12v or 5v.

You get 7v by crossing 12v with 5v. It doesn't "feed unused voltage back to the psu." Voltage is a potential across two points.

Yup. The problems is more with the current. Of course, the 5 V should support higher currents than the 12 V. This is typical of the ATX specification.