Mac Pro early 2009 click on startup

codyrock2001

macrumors newbie
Original poster
Feb 26, 2015
2
0
I'm sure this has been posted before but I haven't been able to find any solid answer. I have a Mac pro early 2009 2.66 quad. This is my first Mac pro and I just picked it up. It seems to make a click when I push the power button. But nothing seems to wrong per se. Everything starts up fine. Although when it went to sleep I woke it up and made the same single click. It's seems as though it draws a good amount of power for a very short time on initial start or restart. Any thoughts/ideas on the matter are appreciated.
 

codyrock2001

macrumors newbie
Original poster
Feb 26, 2015
2
0
this is perfectly normal, all classic Mac Pros make this little click sound when being powered on.
Ok so the sound is just a relay or something of the like clicking? Also the power draw is alright then? Is there any signs when the power supply's go bad?
 

mikeboss

macrumors 65816
Aug 13, 2009
1,274
451
switzerland
yes, the click is coming from the relay in the powersupply. also, a short spike in the power drawn when starting up is normal. every computer does that, especially if it sports a powerful powersupply.
 

Macsonic

macrumors 65816
Sep 6, 2009
1,473
17
Earth
Ok so the sound is just a relay or something of the like clicking? Also the power draw is alright then? Is there any signs when the power supply's go bad?
Congrats on your classic Mac Pro. Would also advised that you get a UPS to protect the power supply from power spikes from electricity fluctuations. Your power supply is around 980 watts. The UPS model should be adequate to manage the power requirements of your Mac Pro.

Edit: Best to turn off internet during thunderstorms and lightning.
 
Last edited:

Tucom

macrumors 65816
Jul 29, 2006
1,175
247
Congrats on your classic Mac Pro. Would also advised that you get a UPS to protect the power supply from power spikes from lightning or thunderstorms and electricity fluctuations. Your power supply is around 980 watts. The UPS model should be adequate to manage the power requirements of your Mac Pro.
No surge protector can protect from lightning strikes or thunderstorms. This is irrelevant advice. UPS are good for blackouts however and fluctuations, but in the many, many years that I've been building, fixing, and using computers a good surge protector is all I've ever needed.
 

Macsonic

macrumors 65816
Sep 6, 2009
1,473
17
Earth
No surge protector can protect from lightning strikes or thunderstorms. This is irrelevant advice. UPS are good for blackouts however and fluctuations, but in the many, many years that I've been building, fixing, and using computers a good surge protector is all I've ever needed.
You're probably correct that the built in surge protector in the UPS may not be a guarantee it protects against lightnings. Best way is when there's a thunderstorm while using the internet, best to turn off the internet to avoid possible risk in damage to the logicboard. A Mac technician advised me it would be safer to turn off the internet.

http://stormhighway.com/surge_protectors_ups_lightning_protection_myth.php
 

Tucom

macrumors 65816
Jul 29, 2006
1,175
247
You're probably correct that the built in surge protector in the UPS may not be a guarantee it protects against lightnings. Best way is when there's a thunderstorm while using the internet, best to turn off the internet to avoid possible risk in damage to the logicboard. A Mac technician advised me it would be safer to turn off the internet.

http://stormhighway.com/surge_protectors_ups_lightning_protection_myth.php
Haha good thing I use WiFi :p

Thanks for the info