Q: Xserve2,1 2x2.8 quad core - fans running full speed
I recently acquired an old Xserve (Xserve2,1 2x2.8 quad core), it ran ok the few times I tested it (just on a bench, booting it up to different drives/systems).
However, it now seems to have some serious problem that involves the fans coming on at full speed as soon as it is plugged in.
It doesn't get to the stage of being booted, as soon as it is plugged in the fans in the power supplies come on as normal (slowly). At this point all the lights are on for the ethernet ports on the rear (but there are no cables plugged in), the ethernet port indicators on the front are on and the lock indicator is on (but the machine is not locked). After a few seconds the power supply fans start running at full speed, then a few seconds later the main fan array starts running at full speed - sounds like a jet taking off!
The power button is unresponsive - the machine won't attempt to boot. The only way to stop it is to pull the power cables.
If I open the machine up and attach the power cables I can see that the red LEDs beside the RAM also all light up.
I tried pulling the RAM and re-seating it, but this had no effect.
Posted on Jan 1, 2016 10:37 AM