Brand New MPX3V Adapter for Dell Optiplex 390 250W Power Supply Unit PSU

How to Select the correct DELL MPX3V Servers Adapter
Before purchasing DELL MPX3V Servers you need to make sure make the replacement for MPX3V Adapters will give you the correct voltage,suitable current output and the right "tips". Most Servers users travel, for tdose travel to Australia, Europe or US they require Servers adapters that take 100-240 voltage input and output 16 voltage or 19 voltage.
You should Follow 2 easy steps to pick the right Servers adapters.
1. Finding the right "output voltage" and "current output"
To find out the voltage & current, turn your Servers over and look for a label, sticker or writing which shows the voltage and current.You can also find these shown on your original DELL AC Adapter MPX3V if you have it.
voltage [volts V]- it has to be the same as voltage value specified on your Servers.Different Servers were designed to consume power varied by equipments such as CD-Rom, LCD size, CPU maker and CPU speed. You require to use the "matching voltage" . Only use the Replacement For DELL MPX3V Charger output the matching voltage of your Servers. You can easily locate your Servers voltage. Mostly, voltage is printed on your Servers. You also can check your Servers manual.
Current output[ampere A] -it has to be the same or higher than the value specified on your Servers.The Amps may be higher but they cannot by lower. If you are purchasing a universal DELL MPX3V Servers Adapter or Car Charger you will need to work out the Watts of your original DELL MPX3V Servers adapter and select the universal DELL MPX3V Adapter or Car Charger with the same Watts or next highest Wattage. You can work out the Wattage by multiplying the Voltage by the Amps i.e 16V X 4A = 64 Watts. There is no 64 Watt DELL MPX3V AC Adapter so you will need to select the next step up which is the 70 Watt or higher Watt DELL MPX3V Power Adapter.(NOTE: If the wattage requirement for your Servers is lower than the 64W of the adapter, it will not damage your Servers, your Servers will only take the amount of power it requires. I.E. If your Servers needs 50W, then either the 60W or 90W will work OK. If your Servers needs 80W then you will need the 90W one as the 75W one will not be powerful enough.)
2. Finding the right "tips"
Different Serverss have different connectors. You need the right tip for your Servers. This is very simply to find. Basically, laptop AC adapters comprise of 2 ends. One end is male power outlet. You use this end to plug into wall power outlet. The other end is called "TIP" which you will plug this tip into the "DC IN" in your Servers.
Your Servers won't work on the wrong tip. You can only use the " matching Tips"
Warning : DO NOT try to force it in.

How to replace a power supply?

Computer contain sensitive electronic components that are easily damaged by static electricity and excessive shock. When handling the power supply and other components, ensure you are properly grounded using an anti-static mat or similar device. If anti-static equipment is not available, ground yourself by touching the exterior of the computer case or another large metal surface before handling any peripherals.

1. Installation of a power supply requires some mechanical skill and requires that you open your computer case to disconnect and reconnect wires. If you are unfamiliar with this kind of work, consider bringing your computer and replacement power supply to your local computer store for help.

   If you are replacing an old power supply in your computer, ensure the computer is shut down and disconnect the power cord from back of the old supply.

2. Open your computer case. In most designs, the case is opened by removing two or three screws at the rear of the case and than sliding the covering panel back ward until it comes free. If your case is a tower type, ensure that you remove the panel that will expose the top of the computer's motherboard. This is generally the left side panel. There are many different case designs, however, so if you are unsure of how to open your particular case, consult the user manual for your case or contact your local computer store for help.

3. Open the computer case. In order to access the housing, you may need to remove some of your components, such as the CPU fan. This will depend on your case layout.

   With the computer case open, review the connectors being used from your old power supply. If you are building a new computer, review the connectors that you will need to use. Check the type of connector on your motherboard and use either 20 or 24 pin ATX power connector on the power supply as appropriate.

4. Disconnect the old power supply connections from inside your computer. Hard disk drive, CD drive and floppy disk drive connectors disconnect by pulling on the connector. The motherboard connector has a clip that must be pressed while pulling on the connector to release it. A rocking motion while pulling will aid in getting the connectors loose. Never pull on the wires of a connector to unplug it.

   Mount the power supply. Most housings allow you to slide the power supply in, and it will usually only fit one way. Make sure that any fans on the power supply are not blocked, and that you can screw it in from the back with all four screws. If you can't, then the power supply may be inserted incorrectly.

   Mount the power supply securely with all four screws before moving on. You can use standard ATX case screws if the power supply didn't come with any.

5. Plug in the connectors. Once the power supply is secured, you can start wiring the interior of the computer. Take your time to ensure that no component is forgotten, and to place the wires in a way that doesn't interfere with system fans or cooling. You will likely have more connectors that places to connect to; try to tuck these extra cables out of the way.

   Connect the 20/24 pin connector to the motherboard. This is the largest connector on the power supply. Most modern motherboards require the 24-pin connector, while older motherboards will only use the first 20 pins. Some power supplies have a detachable 4-pin connector to make connecting old motherboards easier.

   Connect the 12V power to the motherboard. Older motherboards use a 4-pin connector, while newer ones use an 8-pin. This powers the processor, and should be clearly marked on the cable or in your power supply's documentation.

   Connect your graphics card. Mid- and high-end graphics cards will require one or multiple 6- and 8-pin connectors. These will be marked as PCI-E connectors.

   Connect your drives. Most drives use SATA power connectors, which are thin plugs. If you have older drives, then you will need to connect via Molex connectors, which are 4 horizontal pins. There are adapters to turn Molex connectors into SATA for older power supplies.

6. Close your case. Once everything is connected, you can close of the case and plug your monitor and peripherals back in. Plug the power supply into the wall and ensure that the switch on the back is set to on.

7. Turn on your computer. If everything is connected and powered properly, the fan on the power supply should turn on and your computer will boot like it normally would. If you hear a beep and nothing happens, then something inside is not connected correctly, or the power supply is not providing enough power to your components.

Note:Please be sure about DC accurate output (such as : Voltage 250W, Power 250W) or DC connector type or size (such as : 175mm*85mm*65mm) before ordering.

Caution : Please don’t waste your money time to purchase the low class or copy Adapter/Charger for your valuable Servers. You should choose a high-quality replacement AC adapter/charger by a regular manufacturer or be used original AC adapter/charger , Otherwise it may cause to harm battery and your valuable Servers also.

Charger-batteries.com is a professional manufacturer of alternative AC adapters/chargers. All AC adapters/chargers are of high quality and have no defects in materials and workmanship. We offer 1 year warranty and 30 days money back guarantee. You can buy with confidence.

Safeguard: AC Adapter is the vital device for your valuable Servers. So, please be careful to buy this device from the market before ensuring the accurate output DC capacity (mAh) which is mentioned back side of your Servers. Inaccurate voltage and current (mAh) supply may cause of Servers’s performance and unstable voltage current (mAh) will damage your Servers’s motherboard, battery life and other integrated electronics parts. For this reason, when you choose an adapter for your Servers that meets all of the three requirements : (i) Accurate output voltage and current, (ii) Exact DC connector/tip size and (iii)Appropriate polarity.

FREE REPLACEMENT

During the warranty period, if the MPX3V adapter replacement is completely dead, we will replace the adapter for you.

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