[Volvo]

I have in my hands, a Delta AFB0712MB.
It is the stock fan from a Socket 478 cooler - this came from an old Compaq system.

The fan exhibits no sign of failed bearings - when hand-spun it doesn't vibrate or rattle.
But when plugged in to a power supply or motherboard, it just won't start.
What are the chances that a broken wire (internally) could be the casue of this?
I'm not about to rip open the motor sticker because in the event that this fan is salvageable, I'll find a use for it.
So is there any other way to get to the cause of this problem?

 

[ehume]

Make sure the red wire in the fan cable matches up with the red wire in the psu cable. If you're not careful it's easy to mess up the polarity.

 

[Volvo]

I got that right.
I tested it with like 8 different fan connectors.
Can't be wrong

 

[Behemoth777]

Sounds like it might have burnt up internally. The only way to find out is to tear up the sticker and see whats under there.

But, rule of thumb: If a fan doesn't spin up when you try it on 8 different connectors, it's most likely dead.