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PC Shuts Down
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angeliscar
Newbie
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6. February 2011 @ 01:18 |
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Can anyone tell me what is causing my Desktop PC to shutdown immediately after powering it up. The scenario was that upon powering up, the PC attempted to boot, then shut down. Then I tried again & the fans run, but nothing else happens. I then have to hold down the power button to force it to shut down. I did notice that the green light on the power supply unit turns off as soon as the pc's power button is pressed. Any ideas?
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ddp
Moderator
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6. February 2011 @ 14:43 |
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try another psu. can you get into the bios?
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ps355528
Senior Member
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6. February 2011 @ 15:26 |
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caps.. very common.. especially if it quits before any beeps
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angeliscar
Newbie
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6. February 2011 @ 16:09 |
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Originally posted by ddp:
try another psu. can you get into the bios?
No I can not get into the bios, but I am considering getting a new PSU. Thanks.
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angeliscar
Newbie
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7. February 2011 @ 18:05 |
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Originally posted by ps355528:
caps.. very common.. especially if it quits before any beeps
Hi- Can you please explain. I'm not sure what you mean by "caps.. very common..". THX
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ddp
Moderator
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7. February 2011 @ 22:28 |
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caps as in capacitors. they are those silver top cans on the motherboard & power supply that if domed or leaking brown stuff can do all kinds of problems for computers.
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angeliscar
Newbie
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8. February 2011 @ 19:45 |
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Originally posted by ddp:
caps as in capacitors. they are those silver top cans on the motherboard & power supply that if domed or leaking brown stuff can do all kinds of problems for computers.
Okay, now I understand. Thanks for clearing that up.
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ddp
Moderator
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8. February 2011 @ 22:31 |
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no problem.
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angeliscar
Newbie
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12. February 2011 @ 21:54 |
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Originally posted by ddp:
caps as in capacitors. they are those silver top cans on the motherboard & power supply that if domed or leaking brown stuff can do all kinds of problems for computers.
Upon opening tower, the mother board has a few of the same caps gone bad. Is it worth the trouble to replace caps or is it time to replace a five year old desktop?
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cnorb
Newbie
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12. February 2011 @ 21:59 |
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What is psu?
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angeliscar
Newbie
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12. February 2011 @ 22:07 |
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Power Supply Unit.
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ddp
Moderator
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12. February 2011 @ 22:36 |
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angeliscar, depends on you as i've done both on motherboards & power supplies.
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angeliscar
Newbie
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12. February 2011 @ 22:40 |
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I have ordered some Rubycon MCZ caps. I guess I'm up to the challenge. Thanks for the words of encouragement.
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ddp
Moderator
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12. February 2011 @ 22:44 |
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how are you going to do it, cut the cans apart & solder to the leads or desolder old caps & solder new caps in place of old?
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angeliscar
Newbie
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12. February 2011 @ 22:53 |
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I am going to heat the old solder, pull the old ones out, replace & resolder the new ones. I will desolder only if I have too.
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ddp
Moderator
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12. February 2011 @ 23:08 |
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watch the ground planes on the motherboard that the 1 side of the capacitor is attached to as it absorbs a lot of heat before the solder melts. make certain new cap is oriented same way as old 1 was as in positive to positive & negative to negative.
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angeliscar
Newbie
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12. February 2011 @ 23:17 |
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Originally posted by ddp:
watch the ground planes on the motherboard that the 1 side of the capacitor is attached to as it absorbs a lot of heat before the solder melts. make certain new cap is oriented same way as old 1 was as in positive to positive & negative to negative.
I will certainly keep that in mind. I will practice on a scrap board first. Thanks again.
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ddp
Moderator
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13. February 2011 @ 12:43 |
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no problem.
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