Go Back   Computer Forums > General Computing > Hardware
Click Here to Login
Join Computer forums Today


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-24-2007, 10:18 AM   #1
In Runtime
 
Brian_Fenner's Avatar
 
Join Date: Nov 2005
Posts: 366
Question Desktop Issue - Please Help

Been out of town for a few days on vacation (Las Vegas) ..........come back and fire up my desktop and it's dead!
It won't power up at all.......no fan, no noise, nothing.

HP 7177C Desktop System
2GB RAM
Pent D

I took it apart and here is what I see..........
There is an LED on the rear of the PS that is blinking when plugged in (it should be on solid). I started disconnecting all power cables to various components and had everything disconnected except the MB and it still wouldn't power up.
If I disconnected the MB power cable connector then plug it back in with the power cord attached the PS LED would be solid and it would fire up. But if I left the MB cable connector attached and then disconnected the main power plug then plugged it back in the PS Led would again blink and it wouldn't fire.

ANY ideas?
Is the PS toasted or is it a MB issue?

Thanks for any help........
__________________

__________________
White Bear Lake, Minnesota
GoldWings Rule!
Brian_Fenner is offline   Reply With Quote
Old 12-24-2007, 10:23 AM   #2
Fully Optimized
 
cavemangrinder's Avatar
 
Join Date: Oct 2007
Location: USA
Posts: 1,540
Default Re: Desktop Issue - Please Help

I would say its a PSU issue as no fans spin and there is no noise such as the hdd starting up or anything.
__________________

cavemangrinder is offline   Reply With Quote
Old 12-24-2007, 10:26 AM   #3
muz
Golden Master
 
muz's Avatar
 
Join Date: Oct 2006
Posts: 6,928
Default Re: Desktop Issue - Please Help

try jumpstarting the psu with something like just a case fan plugged into it see what happens
if the psu wont jumpstart you need a new psu if it will could be the mobo

ps if you dont know how to jumppstart your psu just put a paperclip between the green wire and any black wire on the 20/24 pin adaptor
__________________
Desktop-AMD Athlon 64 X2 6000+-2GB Elixer DDR2 800 250gb+500gb+500gb+120gb
Laptop-Apple Macbook Pro 13" Intel core i5(2.3ghz) 4gb Ram 320gb hard drive
muz is offline   Reply With Quote
Old 12-24-2007, 10:27 AM   #4
Fully Optimized
 
esa193's Avatar
 
Join Date: Aug 2006
Posts: 4,210
Send a message via AIM to esa193
Default Re: Desktop Issue - Please Help

does your psu fan even turn on?
but moneys prob on the psu
__________________
antec 900, q6600, 4G, 500G, 160G, 9800gtx, 780i, 47in 1080ptv, 5.1 surround sound

MacArthur wrestling pwns!
esa193 is offline   Reply With Quote
Old 12-24-2007, 11:28 AM   #5
In Runtime
 
Brian_Fenner's Avatar
 
Join Date: Nov 2005
Posts: 366
Default Re: Desktop Issue - Please Help

I have the PSU out of the case now........plugging the power cord in the green light is on solid..........if I jumper the green/black the psu fan comes on.
The PSU light blinks and won't power when I have the large connector attached to the motherboard and the main power cord is disconnected then reconnected.
If I have the main power cord plugged in first then attach the cable to the motherboard everything is okay and it fires.

I can order a PSU as I hope that's what the problem is............but if it's the motherboard the desktop is scrap IMHO as it's then not worth the effort.

Any other ideas to confirm?
__________________
White Bear Lake, Minnesota
GoldWings Rule!
Brian_Fenner is offline   Reply With Quote
Old 12-24-2007, 12:06 PM   #6
Golden Master
 
freestyler105's Avatar
 
Join Date: Sep 2006
Posts: 7,883
Default Re: Desktop Issue - Please Help

The easiest thing to do would be to try another PSU in the computer, do you have a spare around anywhere?

Right now I'm thinking it's the PSU, but it's hard to tell for sure without some tests.
__________________
C2D E6600 | 4GB DDR2-800 | 9800GTX+ | Asus P5B-E | 150GB Raptor | 320GB 7200.10 | 750W Xigmatek PSU
freestyler105 is offline   Reply With Quote
Old 12-24-2007, 01:24 PM   #7
In Runtime
 
Brian_Fenner's Avatar
 
Join Date: Nov 2005
Posts: 366
Default Re: Desktop Issue - Please Help

Just ordered an exact replacement PSU for only $40..........
It's worth it to g ive it a try and see if this is the issue.

I'll report back what I find when I get the replacement.

Thanks guys........
__________________
White Bear Lake, Minnesota
GoldWings Rule!
Brian_Fenner is offline   Reply With Quote
Old 12-24-2007, 02:06 PM   #8
Fully Optimized
 
cavemangrinder's Avatar
 
Join Date: Oct 2007
Location: USA
Posts: 1,540
Default Re: Desktop Issue - Please Help

Cool beans
cavemangrinder is offline   Reply With Quote
Old 12-24-2007, 02:44 PM   #9
In Runtime
 
4fingerninja's Avatar
 
Join Date: Jul 2007
Posts: 467
Default Re: Desktop Issue - Please Help

its the psu i had the same problem and the led light doesnt stay lite
__________________
dual core pentium 2.8 1gig ddr2 667 160 hdd with xp,ubuntu, mac osx
macbook 2.0 duo 1 gig ddr2 667 osx 10.4.11
amd x2 5000 2 gig ddr2 800 500gb hdd 9600gt antec 300 xp
4fingerninja is offline   Reply With Quote
Old 12-26-2007, 08:45 PM   #10
In Runtime
 
Brian_Fenner's Avatar
 
Join Date: Nov 2005
Posts: 366
Default Re: Desktop Issue - Please Help

Just received the new PSU and installed it.............

That was it! Works like a champ!

Thanks........
__________________

__________________
White Bear Lake, Minnesota
GoldWings Rule!
Brian_Fenner is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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



All times are GMT -5. The time now is 07:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0