I have an Early 2008 MacPro and would like to connect it to a new UPS Battery Backup. The current one that I have gets overloaded by the Mac when there is heavy processer usage.
I was wondering if anyone could tell me what kind of UPS to get that will not overload when the Mac is connected.
Thanks!
Mac Pro, Mac OS X (10.7.2), Early 2008 Quad 2.8Ghz, 14 GB Ram
Capacity is the question, and age.
I have a 750 VA that is 3 (4?) years old that runs two tower systems (PC and Linux, plus a 22 in monitor) when I run those. It never seems "overloaded".
But age and enough instances of blackout for using the batteries may have weakened it.
A decent 900 or 1000 VA unit still runs only just above $100 in my neighborhood. Ans ONLY APC ... not CyberPower.
Capacity is the question, and age.
I have a 750 VA that is 3 (4?) years old that runs two tower systems (PC and Linux, plus a 22 in monitor) when I run those. It never seems "overloaded".
But age and enough instances of blackout for using the batteries may have weakened it.
A decent 900 or 1000 VA unit still runs only just above $100 in my neighborhood. Ans ONLY APC ... not CyberPower.
I didn't think a UPS would "overload" when the power is on and its not running off the battery. But when my Mac pro does something thats very processer intensive, such as 3D rendering, the UPS would start beeping and the "overload" light would come on.
Can you tell me if the following model's specs would be sufficient?
Its an APC
Output:
Output Capacity: 600VA / 360 Watts
There's a interesting discusions about UPS's for mac pros over in the MacRumor's forums:
And this was found doing a google search for "ups for mac pro".
A 750 VA model (http://www.microcenter.com/single_product_results.phtml?product_id=0278611) might be better, if your current model is 600VA. I subscribe to the idea that buying *just a little bit more* can be a good idea if you plan to keep something in place for 3-4 years. As is, the 750 VA I showed (I have that one) suggests I "add no more devices" at about 60% load.
Or a 1000VA ... http://www.microcenter.com/single_product_results.phtml?product_id=0329843
Or a 1300VA ... http://www.microcenter.com/single_product_results.phtml?product_id=0317217
Your call on how much money to spend as "time enough to shutdown cleanly".
Actually the UPS I had it connceted to was 450VA, obviously not enough.
How can I figure out what I need? Is there an Application or something to figure out the max power draw of my computer?
Did you read the discussion X423424X suggested? It lists some "rate each component" methods.
I would take the advice of that discussion (they *are* real MacPro users) and buy 1000-1300 VA just to be done with it and get on with other things. But you can read that discussion and try the component-by-component analysis.
UPS Battery Backup
