Power problems. - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > Hardware Repairs and Troubleshooting
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 10-25-2007, 06:14 PM   #1 (permalink)
Newb Techie
 
Join Date: Oct 2007
Posts: 2
Default Power problems.

Hi guys/gals those more knowledgeable then I.

Guess what I am NOOB and need help. I'm sure you are not use to this.

Well I have an acer AST180-UD400B that has been a great computer until recently when one night i shut it down and it wouldn't turn on the next morning.

I had a buddy of mine test the power supply and it was found to be bad.
To my surprise acer was more then happy to send me a new one at no charge. So i went to install it today and the same thing happened. Just wont turn on.

What i have noticed is that if i don't plug in the 4 wire connector {2 Yellow wires with black stripes 2 Solid black wires} to the left of the cpu/processor the unit will power up, the dvd rom kicks in and it triggers the fans but the video doesn't kick on.


So now finally then question.
Whats broke?
Should i shoot it?
Do i now own a 20lb paper weight?
__________________

VistaIsPunishment is offline  
Old 10-25-2007, 06:37 PM   #2 (permalink)
Master Techie
 
eyeCpc's Avatar
 
Join Date: Apr 2007
Posts: 2,074
Default Re: Power problems.

Without the 12v cpu feed the system won't boot. But the description may not be a bad supply but a need to only lightly replug the four wire molex back in until the retaining clip clicks inplace. Sometimes you'll find a loose contact in the plug on some supplies. Try that before assuming a board fault.
__________________

eyeCpc is offline  
Old 10-25-2007, 06:51 PM   #3 (permalink)
Newb Techie
 
Join Date: Oct 2007
Posts: 2
Default Re: Power problems.

Quote:
Originally Posted by eyeCpc View Post
Without the 12v cpu feed the system won't boot. But the description may not be a bad supply but a need to only lightly replug the four wire molex back in until the retaining clip clicks inplace. Sometimes you'll find a loose contact in the plug on some supplies. Try that before assuming a board fault.

Yea i went threw every wire one by one to make sure all were making proper contact. I am assuming you are telling me the 4 wire plug to the left of the processor are the power/ground feed for the CPU.

I have already replaced the power supply and i am having the exact same issue.
As long as the 4 wire plug is installed the system does nothing.
VistaIsPunishment is offline  
Old 10-25-2007, 07:38 PM   #4 (permalink)
Master Techie
 
eyeCpc's Avatar
 
Join Date: Apr 2007
Posts: 2,074
Default Re: Power problems.

When the first supply went it may have done something to the board as well. The a cap in the supply could have seen a direct short to ground or send a good surge into the board to see something there damagied.

A cap on the board could have also simply went on you. One thing to try there is a good visual imspection of the board itself to see any discoloration or bulged out leaking caps are found. That would verify a board problem. Get in there with a small flash light and even a pocket magnifier to have a look.
eyeCpc is offline  
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
POST Troubleshooting Guide SYL\X/3K Hardware Repairs and Troubleshooting 7 03-07-2009 11:24 AM
Power button problems B-rock Laptops and Notebooks 6 10-08-2007 05:10 PM
New power supply and my computer problems. Deadpixel New Systems | Building and Buying 0 09-26-2007 10:06 PM
Xbox 360 Racing Wheel Power Supply Problems Osiris Microsoft XBox 0 08-23-2007 07:24 PM
compuer power problems....please help! MrAnonymous Hardware Repairs and Troubleshooting 3 08-04-2007 01:46 PM



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:46 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.