I boret a power supply for my new PC, I yet conect my new case. to try the new fan, whit out my motherboar, but nathing apen, no ligth no fan, do you thing my power is bad o sure I have to conetc to my boar?
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Re: POWER SUPPLY FOR pc
The simplest would be to connect the power supply to a motherboard since this is where the on/off switch is also connected. The power supply needs to be triggered on before it will operate. Plugging in power from the mains is not enough.
Alternately in most PC power supplies, you can try force triggering to turn it on with just your fan and lights connected. This is done by shorting the Green (or Gray in some) wire to the GND (black) wire on the biggest connector.
In most modern power supply designs, it needs a load across the +5V rail
(latch on) to operate otherwise it will power on but then immediately switch off
when it senses that there is no load connected. Sometimes this can be defeated by shorting the Orange (Power Good) wire to the Red (+5) wire.
A word of caution, some old Dell power supply as well as a few other brands do not follow the standard wiring color coding
Hope that this be of some help/idea. Pls post back how things worked out or should you need additional information.
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There must be a problem with your power switch on your computer casing, or motherboard or power supply.
Detach your power supply and try this, to check if your power supply really works. If the auxiliary fan will turn, your power supply is good
Testing your power supply and motherboard as seen on photo
If the cpu cooling fan and power supply did not turn the fan, but you have checked already the power supply that is working then you can conclude that your motherboard is need to be replace. But the power supply and motherboard and working, meaning to say your computer casing need to be replace or try fixing the contact of the switches attach to your casing.
Choosing a good power supply depends on a few factors; The amount of power your PC and all it's internal/external connected devices need. The way your PC-casing is built (for airflow).
First it's important to know if you have added any internal/external hardware to the pc since you bought it (hard drives, video cards, usb devices, memory etc.). If this is the case then you definitely need to upgrade, but reading the second and third factors I mention below will shed more light on that.
Second (if possible) you need to check the voltage levels on your current Power Supply via you PC's BIOS or by using a program like Speedfan. If any of the voltages show a reading below what they are supposed to deliver, it means you need a higher amperage on your next Power Supply for that particular line. There are three lines to check (12+, 3.3+ and Core voltage). Usually Power Supplies have a Table with voltages on their sides and on the package. Refer to the one of current Power Supply to see how much amperage your new Power Supply needs to have.
Third it's important your new Power Supply has the fans positioned in the right spots. If your always make sure the air is blowing out of the casing. If it has a small fan on the back, it most likely blows outwards (sucking air from inside your PC case though the Power Supply). If it has a big fan on the top side, it's most likely designed to blow out of the top of the PC case. If it has a fan on the bottom side, it's most likely designed to **** air from the inside the PC casing and blow it through the Power Supply. However it may also be designed to blow out the side of smaller PC casings, in which case the Power Supply is position in front of the motherboard.
Fourth is kind of the-rule-of-the-thumb, always (if possible) buy a brand Power Supply. Generic/Standard Power Supplies do not nearly achieve as much power/lifetime/quality as a brand Power Supply. I recommend a Cooler Master, for their silent but powerful coolers.
Fifth but definitely not a lesser one. Check what connections your PC need. Count the amount of pins connected to your motherboard (usually either 20 or 20+4 pins). Most modern Power Supplies cover most of the connection types. But you don't want to come home with a new Power Supply that isn't going to support your old IDE drives or something.
You could help us help you by providing us with a list of Hardware your computer contains. I can search your PC type and read the specifications, but they don't show what you put extra in/on your machine.
I would recommend rechecking your connection to the motherboard. All wires from the power supply to board and making sure the front panel switch connection are correct. Also, make sure the power supply is compatible to the motherboare. even though a 20-Pin ps will connect to a 24-Pin board, it still does not work. Good Luck
Hello, Firstly, remove the RAM and turn on the system, if you hear the beep sound continuously that means everything is perfect expect RAM. Clean the track of RAM at both sides by pencil eraser completely. Also clean the port of RAM.
Secondly reinstall the CPU with CPU FAN and also clean the FAN.
Third one is that remove all the add-on's card and than turn on the system.
The power supply comes with a fan. Therefore I guess you need to replace a bad fan. Remove the power-supply case.
Note which direction the fan spins. There is an arrow on the plastic fan case. You will note that one side of the fan is open. Be sure to put the new fan so it faces the exactly the same way. Remove the screws holding the bad fan and cut the wires leaving enough room on them to solder on to the new fan.
Your replacement is usually a normal 80mm, 12 volt case fan that provides ventilation in most PC cases.
Connect the two wires to the new fan by soldering the red wire to the red wire and black to black. Use shrink tubing or tape to insulate the connections.
A second option is to replace the entire power supply with a new one (containing a new fan). Then there is no soldering involved. If you look carefully enough, you will find them cheaply on line.