I unplugged my power sw wire, hdd led, and power led of my emachines t6520 ive tried everything but the computer will not turn on the motherboard does not have any symbols to indicate pos or neg . . . . | +g g +b b x g g g x | +r r bl bl +bl g= green b=black r=red g=green bl =blue the ones that are with + are colors on the motherboard that have a + going through them

Most Motherboards are made to only accept certain plugs in that specific spot! If you are trying to add something new like a new Fan or LED, or HHD and you need power you would have to use a 4 prong plug off the power supply, If your power supply does not have any more available plugs, Amazon.com or Newegg.com sells splitters!

Good Luck and Best Wishes!

it should be printed on the motherboard itself. if not, go google emachine t6520 front panel connections.

their should be some abrevations like pwr led, pwr sw, hdd led by some metal pins in one of the corner of the motherboard

The manual for your computer is available from emachines, p.168 shows the info you need (replacing the front I/O panel)
http://downloads.emachines.com/userguides/8511279_eM_NG3_chassis_HW_ref_en.pdf

The good news is that you can't harm the computer by connecting the wires wrong and the bad news is they just won't work the way they are supposed too if not connected properly. The LED's must have the correct polarity to work.
In general, if you look real close (as in magnifying glass and flash light) you will see the ID for each set of pins is printed on the motherboard (pwr,rst,HDD,pwr sw,speaker) Just match what it says on the motherboard to what it says on the wires. Don't worry if you get the polarity wrong. If a light doesn't work just swap the two wires. The colored wires should be positve (+), though. The reset (rst) and power switch (pwr sw) wires don't require polarity.
These instructions are for most computers in general, YMMV.

There are may motherboards, but most have writing on them as to what is suppose to plug where. For example, for the power switch, the lettering might be "Pwr" or "Power" or "Pwr sw". The pins are usually together and should fit the plug on the end of the wire.

check on the motherboard there should be a small prints on it near control panel.

see to the front panel section on mother board possibly on the right hand side of bottom u can see the label there to connect hdd led

these normally go at the front of the motherboard if you are looking at it where the power supply box cables are at the back. There are litlte pins that these fit onto that will say on the motherboard Hdd led etc... in small writing.

hope this helps

On the system board, on the left edge next to the primary IDE connector, there is a 9 pin header.
I usually get a magnify glass and look down on the header . From right to left,you will see PWR led pins closer to the edge of the motherboard.and the Power BTN next to it.(the side of the pins that has 4 pins on it)
Then on the other side, you will see the pins for the HDLED across from the PWR led. Then the Reset pins across the PWR BTN.

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe


I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309

Need to look in the manual to find where they go. Don't just try at random or something will fry.