Hi my problem is i have a dell gx270 ive looked at the power supply connector that plugs into the motherboard and its a standard atx power supply my problem is the new power supply Iv looked at has a white -5 volts wire in pin 18 and mine dont . I have read that older power supplys used the white wire in pin 18 .so if i removed it will this be a problem. My guess is its just a -5v cable and removing it will be fine lol.........................boo0oom..... but id like to have it confirmed by someone who knows about this sort of thing thanks in advance for any help