Wire came loose on pavilion xe 734 that supplie power to hard dir
Where does group of wires attach to mother board that are black/red, green/black, yellow/black? this wire grouping will supply power to hard drive. the pin holes are 3 then a white solid blank the 5 holes. on the pin casing it says power sw./led
Re: wire came loose on pavilion xe 734 that supplie power...
First of all these wires don't supply power to HDD. These wires are for indicator LEDs on the front
panel of the cabinet. One wire `power sw' is to switch on the system from the power button on front panel. `power led' wire is of the power led on the front panel. All these wires will be connected to the cluster of pins on one corner of the mother board. If you can see it will be indicated & printed near the cluster of pins on the mbd, that which pair of pins is meant for what connector. Try to correlate the names on connector with the print on the mbd.
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IT SOUNDS AS IF YOUR NOT GETTING THE WIRES ON THE MOTHERBOARD IN THEIR PROPER PLACES. DO YOU HAVE THE BOOK THAT CAME WITH THE MOTHERBOARD, MOST BOARDS N EED ONE WIRE TO GO TO A SEPARATE SET OF POWER PINS AND THEN ONE GOES TO THE SWITCH. THEY ARE IN DIFFERENT PLACES. ALL POWER SUPPLIES HAVE DIFFERENT WIRES, THE WIRE THAT SAYS PWR GOES TO THE 2PINS ON THE BOARD THAT ALSO SAY PWR, AND THE SWITCH PINS ARE PART OF THE LONG ROW OF PINS WHERE THE SPEAKER AND RESET ETC. ARE LOCATED. YOU COULD PROBABLY FIND A SCHEMATIC OF YOUR BOARD ONLINE IF YOU HAVE YOUR BOARD MODEL NUMBERS.
info found at http://downloadmirror.intel.com/19707/eng/DQ67SW_ProductGuide01_English.pdf
Front Panel Header Pin info for DQ67SW. They should be color coded too.
1 Hard disk LED + orange
2 Power LED+ green
3 Hard disk LED - orange
4 Power LED- green
5 Reset Switch - blue
6 Power switch + red
7 Reset switch + blue
8 Power switch - red
9 Power Out (do not use)
10 No pin
When connecting individual wires from your chassis front panel to the front panel
header, be sure to observe the connection polarity. Positive wires are usually solid
color and negative wires are usually white or striped.
There is also an alternative pin header if you have a power wire that uses a 3 pin connector instead of a 2 pin connector. It is the 3 pins just past pin 9, and it should be missing the pin in the middle of the 3 pin block. The pin closest to pin 9 is the power led + and the furthest from pin 9 is the power led -.
if you need clarification, check out page 50 of the manual posted above at intel.com
Most obvious problem would be the power supply. The green LED only indicates that the 5V rails os working enough to power the on/off circuit on the motherboard. First disconnect everything except the mother board from power supply. Then try switching on again. If this does not work, then disconnect the power connectors from the motherboard. ON the big power connector (P1) there should be a green wire with two black wires either side. This is the power on sensor wire. Use a paper clip or similar bit if wire to short out the green wire with one of the black wires. This should start the power supply and the fan in the PSU should spin. If this does not work then the PSU is definately faulty. If it switches on when there is no load connected then it is probably only slightly faulty (not able to provide sufficient current). Since the green LED is coming on, my guess is that you have bad capacitors in the PSU (they will probably have domed tops instead of flat). Try a power supply from another PC if possible.
If this is in a computer and the computer does nothing at all when you push the power button you might want to check the power supply. This can be manually done on an ATX power supply both 20 and 24 pin connections. First you remove the main system power cable from the mother board " big rectangle one " and locate the green wire. After you have found it use a paper clip bent in a U and touch the green wire and ANY black wire " all blacks are ground " This will turn on a power supply if its good. If your power supply fails to start i would look into buying a new one.
Hi Dear, well, you can get 1v dc or 1.5v dc from any pc motherboard but I'll never recommend you to do that. You can use Black and Red wire combination to get 5v dc or Black and Yellow wire combination to get 12v dc from motherboard's power supply. 3 LEDs in series can b use for 5v dc input.
Hi Paul, see page 8 number 15 for location. Than see page 19, System Panel Header in your manual. The basic wire color's for positive are red, blue, green & can also be light blue, light green, light red. Negative wires are usually white or black. Case wire colors do vary from case to case. To see pin one shown on page 19, (positive + for hard drive led = HDLED+). Bottom row farthest pin to the left of set. Pin two is above pin one. Pin two is, PLED+ (known as power led). Pin 3 is to the right of pin one & is HDLED- (Hard drive led, negative). Pin 4 is above pin 3 & is also PLED-, (Negative for power led). ECT!
If your new case has an internal speaker (Used for P.O.S.T, power on self test). This would connect to, Chassis Speaker Header located on page 8, number 16. Again, normally only two wires are used across the 4-pin connector. (One at each end of the connector).
The yellow wire carry 12 volt while the red one is 5 volt. But to check the voltage you have to unplugged all the four wires connectors (yelow, black, black red) and measure them one by one. If you say that they don't have any voltage on them then you have a faulty power supply. Replace it to solve the problem. But if during unplugged your have the correct voltage read then it could be one of your device faulty. Normally your CD-ROM drive or floppy drive or HDD.
remove ur power supply socket from the mother board short the pin green and black in the connector if the smps start no problen with the power supply then the problems lies with ur mother board wiring or fault in your mother board if your mother board has secondry power fix it correctly to mother board sock et with has 4 pin if its not working cousult a chiplel engineer the fault lies in the power supply of the motherboard