UPS not sustaining computer

[Red Squirrel]

Weird, I have the same problem with a belkin 200W ups, it won't sustain anything, not even a energy efficient lightbulb (about 20 watts of electricity). Can power surges screw up the UPS's internals? Not sure about yours but mine does not shut because the battery dies, it just shuts off, but the battery is 100% charged.

So I bought a 600W ups, and so far so good, powering a workstation and server.

 

[apoppin]

since you have TWO upses, use the big one for the computer and the other for the peripherials including your LCD . . . make SURE you don't have anything like a laser printer plugged into your UPS [missing the surge protector by mistake]

 

[Lord Zado]

Are you sure you plugged it into the right outlet on the UPS? Most UPS's have only a few outlets with battery back up, while the others are just normal outlets.

 

[sharkeeper]

Have the unit checked out. It may be off frequency.

You can do this yourself. Plug in an A/C powered clock into you unit and while the clock is running on A/C set the second hand to the correct time signal. (We use 15.00000 MHz) Unplug the UPS and wait an hour. The time deviation will show + or - your frequency. It should be as close to 60Hz as possible.

There is a pot to adjust this in APC units. (ones I worked on anyways)

Another kind of strange way to do this is with an aquarium pump and a speaker connected to a signal genny OR you can use your computer with a generated 60Hz tone. Put the pump (vibrator type) near the woofer cone while it is playing 60Hz and listen for the lack of zero beat. Tune the frequency for zero beat. I've found some units running as high as 72 Hz and when they are zero beat tuned the Dranetz always says 60.0 +/- .2 Hz so this is pretty damn accurate.

60Hz test source

 

[dnoyeb]

You can only check non-solid state clocks like that. If its a clock that uses a crystal, that test wont work. Send the damn thing back.

 

[Googer]

Originally posted by: Zepper
Switching PSUs shouldn't need sine wave. I wouldn't be buying tagan on the basis of a few good reviews on fanboy sites anyways. The fanboy reviews of PSUs are generally about as reliable as a crack ho...

.bh.

That is in correct, some models that have the auto voltage select and automaticly choose between 110 and 220 need a true sine wave UPS (like the Smart UPS Line from APC) or they will not funtion properly.

I am not doing a fanboy review here, but if you contact PC Power and Cooling to tell them of your issue they can build a PSU that is compatable with your UPS (i.e. they disable the auto-senceing funtion or make it for use in 110 mode only). It's just one of the many customizations they do.