PSU Voltage readings?

By MountainRider
Mar 22, 2007
  1. Just acquired dead beep. PSU voltages seem all within tolerance EXCEPT PURPLE = 6.82v ! Can anyone tell me what this wire feeds?
    Is it safe to put another processor in to see if that is why computer is dead?
    Any/all help is appreciated.
    Thanks in advance...
  2. Nodsu

    Nodsu TS Rookie Posts: 5,837   +6

    The purple wire supplies the +5V standby voltage that feeds the motherboard (and other devices) even when the system is "powered off".

    That near-7V could easily fry circuitry, so I would advise against connecting that PSU to anything.

    Maybe someone flicked the 110/220V switch? :p
  3. MountainRider

    MountainRider TS Rookie Topic Starter

    Voltage switch

    Well....looked at Voltage selector on PSU ... it is set solidly at 115
    Thanks...either need to change PSU first and then test w/ another CPU or just R+R MOBO,CPU,and PSU all at once
    Thanks again
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