Re: Power-outage

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On 07/06/11 1:41 PM, Ljubomir Ljubojevic wrote:
> I would/will only use 12V power for direct connection from UPS battery
> to ATX connector. It reduces conversion losses and power draw.

if by ATX connector, you mean the one on the motherboard, a standard ATX 
mainboard requires REGULATED 12 volts, as well as 5V and 3.3V and 
-5(legacy) and -12(legacy).  Your 12V battery is more like 14V when its 
fully charged and connected to a trickle charger, and down around 11.5V 
when its under load and mostly depleted.    If you wanted to run a 
mainboard on this sort of power, you would need a specially designed 
mainboard with built in DC-DC supplies, or you would need a DC-DC 
multi-voltage ATX compatible power supply (such as previously mentioned 
on this thread)


-- 
john r pierce                            N 37, W 122
santa cruz ca                         mid-left coast

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