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I have a 400 watt but as soon as i plug anything into it it beeps untill i unhook it

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This sounds like too much load for the converter, test with lighter load items...

Posted on Oct 04, 2010

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I want to use the apc 650 pro to run on my 900 watt generator.I will be pulling about 400 watts,will this smooth out the voltage from my generator to my radio? Is there anything I must do to use the apc in...


the battery back-up will smooth out the voltage, You will definitely need a battery in or else it will beep nonstop and drive you batty! the APC should have surge protected outlets already built into it. And since you will be using it outside of a computer environment, im guessing on a worksite, there will be nothing extra you need to do besides plugging it in. I would suggest plugging it into a stable voltage for the first hour or so to allow it to charge the battery.

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What power wattage is good for this MB P5N32-SLI SE Delux Motherboard Which power supply


depends on what else you have got plugged in, I would get a minimun of a 400 watt from a good manufacturer, so you will have a good supply of power over the main rails, most cheap 400 watt supply's cant sustain any where near 400 watts
have a google for power supply reviews

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Overloaded my inverter -now only works when hooked to car battery


It sounds like the fuse that protects you cigarette lighter is blown.

After you have replaced the fuse, check the voltage again. 0.015vdc would not have powered anything that in manufactured to operate on 12vdc.

When powering anything over about 250W, I would suggest connecting directly to the battery to avoid overloading the lighter circuit.

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Protection light blinks and beeping


it has been through an overload (hence the protection light) and needs its breaker to be reset (look for a poped out button and push it back in) or it needs a new fuse (replace ONLY WITH THE EXACT SAME MODEL OF FUSE or it will either blow too early or too late (or not at all) when there is a surge.

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Old power supply no good. bought this dynex 400 watt atx cpu power supply and need to know how to connect wires as there are some plugs that can go in multiple spots.


as long as you have the 20 or 24 plug in and the 4pin square plug in plus the hard drive dvd floppy fans i donot no your motherboard or graphic card so i cannot say anymore only next time write down your conections before removing power supply or get manual for your pc

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The computer wont do anything at all when I press the power button I have checked the power adapter and it's ok I plugged it in on another computer and did fine the 3 prongs it plugs into are there an


If you are getting nothing, no beeps, nothing spinning (drives, fans) then you most likely have a bad power supply. I would also take this time to inspect the motherboard (mobo for short). It should not have any capacitors (they look like tiny soda cans) that are bulging at the top, swollen at the top or leaking any kind of fluid. They should be perfectly flat. If your motherboard looks good then I would get a new power supply. You will want to take out your other power supply and look for the output watts. It will probably be in the range of 150 to 300. You must buy a power supply that has more than what you take out, never less. If you have put in a bigger video card or have a lot of cards that you have added to the system you will want to increase the power supply over 400 watts.

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1 Answer

Motor trend 2400 watt inverter has 147 VAC from both hot and Neut


Assuming you are testing alternating current and not direct current that sounds quite normal. Plug with confidence. You are using equipment designed for 110v-120v and you're getting 113.8v where it matters most. Higher voltage to ground is nothing unusual, that's just how this inverter is designed.

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New pc won't boot


Continuous Beeping: Memory or video problem This is usually caused by a problem with the system memory, or possibly the video card. The memory is more likely--the system complains long and loud if it can't find any usable memory, as there is no way to even start the boot process when this is the case. The motherboard itself could also be the problem. hope this helps

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