Go Back   Steam Users' Forums > Steam Discussions > Hardware and Operating Systems

Reply
 
Thread Tools Display Modes
Old 08-11-2010, 12:46 PM   #1
Rizzy_786
 
 
 
Join Date: Jun 2010
Reputation: 77
Posts: 547
Unhappy PC won't turn on!. help please.

it's a used pc. it was working fine when i got it a few days ago but it just won't power up now. i put a new 400w (previously 250w) PSU in it. still won't power up.
what could the problem be?.
Rizzy_786 is offline  
Reply With Quote
Old 08-11-2010, 12:51 PM   #2
nabokovfan87
 
 
 
Join Date: Jun 2008
Reputation: 308
Posts: 1,430
Bad psu could be, I had one issue where the pc had the reset button held down (that was fun to figure out), check the wall connection, you might have tripped the circuit, and lastly reset the bios by:

1. Removing the cmos battery from the motherboard
2. Unplug PSU from wall
3. Wait 1 minute
4. Replace battery, plug in wall, and reboot.

If that doesn't work, report back.
nabokovfan87 is offline   Reply With Quote
Old 08-11-2010, 12:57 PM   #3
KamiofLunacy
 
 
 
Join Date: Jul 2010
Reputation: 230
Posts: 1,336
Are you getting a beep code/error code of any kind when you attempt to power the computer on?
KamiofLunacy is offline   Reply With Quote
Old 08-11-2010, 12:58 PM   #4
Rizzy_786
 
 
 
Join Date: Jun 2010
Reputation: 77
Posts: 547
Thanx i'll try now. and no Kamio.

EDIT: didnt work. nothing happens :S. pc isn't getting power for some reason.

Last edited by Rizzy_786: 08-11-2010 at 01:05 PM.
Rizzy_786 is offline   Reply With Quote
Old 08-11-2010, 01:08 PM   #5
Ciaos
 
Join Date: Apr 2009
Reputation: 907
Posts: 6,116
You sure you connected the front panel PowerSW correctly?
Ciaos is offline   Reply With Quote
Old 08-11-2010, 01:08 PM   #6
jiminator
 
Join Date: Feb 2009
Reputation: 389
Posts: 3,393
there are two pins on the motherboard that have to be shorted in order to see it turn on. they connect to two case wires that may be marked with something like pwr or pwsw or so on.

at a bare minimum hitting the switch or shorting the pins should cause the fans to spin. if you get nothing, well, you have a problem.
jiminator is offline   Reply With Quote
Old 08-11-2010, 01:14 PM   #7
Rizzy_786
 
 
 
Join Date: Jun 2010
Reputation: 77
Posts: 547
i found the fan & power button pins. the wires are plugged in correctly but still won't turn on. before the problem i could see a green light on the PSU turn on but not now.
how can this be fixed?.

Last edited by Rizzy_786: 08-11-2010 at 01:17 PM.
Rizzy_786 is offline   Reply With Quote
Old 08-11-2010, 02:05 PM   #8
weedo
 
 
 
Join Date: Jul 2005
Reputation: 245
Posts: 6,873
No light on the PSU, could be a faulty power cable or a blown fuse in the plug, use a different cable.
weedo is offline   Reply With Quote
Old 08-11-2010, 02:15 PM   #9
Rizzy_786
 
 
 
Join Date: Jun 2010
Reputation: 77
Posts: 547
okay.

EDIT:no luck

Last edited by Rizzy_786: 08-11-2010 at 02:17 PM.
Rizzy_786 is offline   Reply With Quote
Old 08-11-2010, 02:56 PM   #10
rotNdude
 
rotNdude's Avatar
 
Volunteer Moderator
Join Date: Dec 2004
Reputation: 10750
Posts: 46,733
Post the system specs.
rotNdude is offline   Reply With Quote
Old 08-11-2010, 03:06 PM   #11
Rizzy_786
 
 
 
Join Date: Jun 2010
Reputation: 77
Posts: 547
i dont really know much about the specs. i barely used it. all i know is it has a Intel celeron D processor, 1gb ram & an intel gma gpu.
do you need to know anything else?. i could find out.
Rizzy_786 is offline   Reply With Quote
Old 08-11-2010, 04:05 PM   #12
seseorang
 
Join Date: Feb 2010
Reputation: 748
Posts: 7,385
Does the PSU work in another computer?
What are your system specifications you are using this PSU for, and what are the specifications on the new PSU?
What plugs have you plugged into the board?
seseorang is offline   Reply With Quote
Old 08-12-2010, 12:11 AM   #13
Bad_Motha
 
Banned
Join Date: Sep 2008
Reputation: 3208
Posts: 13,394
I wouldn't try the suspected bad power supply on another machine just yet.
Instead, try a different (known working) power supply on your machine that isn't booting up and see if that works first.
Bad_Motha is offline   Reply With Quote
Old 08-12-2010, 08:07 AM   #14
Rizzy_786
 
 
 
Join Date: Jun 2010
Reputation: 77
Posts: 547
i've tried 2 working PSUs but the mobo isn't getting powered up. all i did before the pc stopped working was try to add more ram (didn't work) & add a gpu because it had a crap intel gpu.
could it be a problem with the mobo?.
Rizzy_786 is offline   Reply With Quote
Old 08-12-2010, 08:14 AM   #15
Bad_Motha
 
Banned
Join Date: Sep 2008
Reputation: 3208
Posts: 13,394
Hopefully the board didn't just die from "static-charge" when adding RAM/GPU.
For test purposes, try re-installing your old GPU and 1 stick of RAM, then see if it boots up. Also for the test, disconnect your HDD power & data, just incase it does boot, doesn't start loading up Windows.

If your GPU has a power cable, be sure to connect that.
Bad_Motha is offline   Reply With Quote
Reply

Go Back   Steam Users' Forums > Steam Discussions > Hardware and Operating Systems


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 Off
HTML code is Off



All times are GMT -7. The time now is 06:22 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Site Content Copyright Valve Corporation 1998-2014, All Rights Reserved.