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U778K I am looking for the info on dell vostro 1510 U778K motherboard schematic. I have 3 dead boards, no power when press power button green sometimes yellow LED on network jack flashes. Need info on where to get schematic diagram of this board or what IC/transistor to replace to get them back working. Thank you

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The first thing I would do is to make sure your power supply is good. I have found that sometimes they will make some of the lights come on, but they may have 12V and not 5V or whatever. I bought a small thing you plug the power supplies into, and then the lights light up to show you if the power supply is supplying what it should. Once you are sure the power supply is good, (don't assume) if they still don't work, I would visually check the boards. I have found many times the small capacitors go bad. After replacing them, the boards worked fine. Usually they will have the top cracked open or bubbled up. If you are up on electronics, as I guess you are if you know how to read a schematic, soldering in new ones is a simple matter. I also remove the CPU, clean the bottom surface off, and put a small amount of CPU grease on and reinstall the CPU. Be sure to check all the pins, as they are pretty small and easy to bend one over.

Posted on Jan 03, 2018

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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SOURCE: Intel D845WN motherboard

www.premioinc.com/pc/manuals/mb/845si/845si.pdf page 95.

Posted on Oct 06, 2007

map9966
  • 2351 Answers

SOURCE: motherboard

To download you're manual for the D815EEA2, please click the link below.
ftp://download.intel.com/support/motherboards/desktop/D815EEA2/EA2FV_English.pdf
You need to go to page 85.
7482c11.jpg Starting at Pin 1 (Hard drive LED) is positive + & pin 3 is ground -. Next, Power LED, Pin 2 is + & pin 4 is ground - .
Letter C, is for the reset switch, Pin 5 is + & pin 7 is - .
Power on/off switch, pin 6 is + & pin 8 is - .
The letter I is used for the internal speaker. The positive pin number 16 & ground pin number 10, letter G

Good Luck!
Have more questions? Please feel free to ask.
Mike

Posted on Jun 02, 2008

wayneard
  • 1901 Answers

SOURCE: I need the front panel pinout for an Emachine T2984 motherboard

Here is the pinout for several Intel MB's with 845GV Chipset.

b083e02.jpg

Posted on Mar 18, 2009

  • 31 Answers

SOURCE: wiring diagram

might be this one: ftp://download.intel.com/support/motherboards/desktop/se440bx2/72163201.pdf

Posted on Apr 01, 2009

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