Posted: 12/6/2010 3:21:26 PM EDT
| In our business bone yard I found a large power supply for our main computer server. I was told that it didn't work becuase of a hardware or software problem. It wouldn't turn on and power the server. My question is, are these good for anything? Can the computer componets in it be bypased and just use the battery and inverter? |
| I bet that fucker has A) batteries and B) a charger/controller -I have made a few older, ie.-less complicated- ones work. Even took an old APC and made it work off or a car battery. What is the make/model of it? Someone (probably more knowledgeable than me) will probably know what you can do with it. If nothing else, you may can scavenge the batteries out of it and cobble together something useful. |
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if nothing else....it has a pure sine inverter in it.....  oh yeah...forgot about the good stuff  , but seriously that may be what is fubar in it...you have batteries, charger/controller, and PSI...umm and a shitload of wires and maybe if it is new enough a parallel/serial/ethernet/USB input to let the server know to 'gently' shutdown...hmmm
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Quoted:
In our business bone yard I found a large power supply for our main computer server. I was told that it didn't work becuase of a hardware or software problem. It wouldn't turn on and power the server. My question is, are these good for anything? Can the computer componets in it be bypased and just use the battery and inverter? Is is a internal power supply for a server or an external Uninterruptable Power Supply. If its a UPS and the only reason was a compatibility issue, it will work as is. What's the make and model..? There is an issue with newer high performance servers and some workstations with PFC (power factor corrected) power supplies and/or that contain redundant supplies. With PFC power supplies you can not use just a standard UPS. It must be a pur sine wave UPS. Not all are. |
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Could just as well be batteries. They get pitched all the time with only bad batteries. Drag it home and jury rig it with 12, 24, 26, or 48 volts (Don't throw the batteries out and drag it home and forgot to write down the voltage sent to the inverter like my dumbass did.) and see if it fires up.
Mine did after trying first 12v, 24v, and 36v all with low battery warnings. Added one more 12v source in series for 48v and BINGO it fired up.
This UPS on a regular Volt Ohm Meter reads only 108vac and I thought I had a dud. Seems my low price spread VOM doesn't read true RMS. Someone on here online trouble shot it for me and told me to plug in a lamp and it was full power. A better VOM with RMS said 117vac. |
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In our business bone yard I found a large power supply for our main computer server. I was told that it didn't work becuase of a hardware or software problem. It wouldn't turn on and power the server. My question is, are these good for anything? Can the computer componets in it be bypased and just use the battery and inverter? Post some pix and we all can make some informed opinions. 
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| Old Powerware UPS's do that by design. In an under volt situation they won't power the unit. Under powered computer equipment is more likely to suffer damage than equipment that looses power completely. Chances are the battery dates are from the 90's. Take the advice above and jumper in a car battery or two and put a load on it. I bet it comes up. |
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This is the power supply. What's it good for? http://www.flickr.com/photos/071559/5245322230 http://www.flickr.com/photos/071559/5245322290 Sorry but I can't post hot links or actual pictures. 
That's just a small UPS. If it works you can use it without modification. |
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Old Powerware UPS's do that by design. In an under volt situation they won't power the unit. Under powered computer equipment is more likely to suffer damage than equipment that looses power completely. Chances are the battery dates are from the 90's. Take the advice above and jumper in a car battery or two and put a load on it. I bet it comes up. The Powerware UPS's do that because they are online UPS's. Unlike APC UPS's, Powerwares always run on the battery and always charge the battery. That way, when the power goes out, there is no cutover from power to battery. Most UPS's have to make a near-instantaeous change from utility to battery power. Not enough to interrupt whatever they are supporting, but it happens. Supposed to be gentler on the hardware. OP, that APC 700 would be handy to have, but will not provide you with a lot of power. I believe the max load on those is like 350 watts. Anything over that and they will simply shut down. I have a couple of rack mount apc 700's and tried to get them to support my garage'd deep freeze. No joy. They are fine as long as the compressor doesnt kick on.  However, if you want a way to power some lights or such, those would be awesome. If you have a Sam's Club nearby, you can go purchase some 6v golf cart batteries for about $75 each and tie them to that UPS and have plenty of power for lights, especially if you are using cfl's. The rack mount 700's run on a 24v setup, though I think the free standing models run on 12v. Not 100% sure on that though. YMMV
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