Q: The computer in question is my HTPC, who sat idly runs only a few feet from my head morning. I was not used but it was switched on and logged on to WindowsXP Pro. I heard what sounded like it turns itself off, but it was loud and disruptive of normal functioning enough for me to hum the computer notice.
Now is not at all. Not even an LED, not even a fan starts to spin up, nothing. I press the button and there is not even a click when it tries to run on.
I checked the mobo and all components for blown capacitors or a tell-tale signs of what went wrong. The mobo / cpu / ram came from a desktop that Ive had for about 5 years. Things were pretty slow but I recently attributed to a failing hard drive. There was no visible evidence of what caused the problem on the mobo / cpu / ram / components, so I moved to another spots.
I probably opened up the power and did notice some white glue-like substance that was sortve across the board and I suspect that the perpetrator may be. I do not know if power supplies have a sort of bright white paste that is applied to certain parts. The only reason I suspect it might not be the cause, because only in different places, do not arise from a separate source.
As of now I still have no power even with all parts of the peripeheral taken off of the power . Any suggestions on what this could cause? Any ideas for troubleshooting?
I can not just get my hands on a new diet so I would like to decide before I start buying and try to see what it restores.
Best Answer: There are several reasons for the laptop not turning on. Like the light turns blue when the adapter is connected. First thing – take out the battery and disconnect the adapter,now press the power button of the laptop for 10 seconds. Now try turning on the laptop with adapter only and battery only and check if it works. If it works then it was caused by static charge generated on the machine, which has been released now.
Next check if the CD drive tray comes out by pressing the button of the drive. If tray comes out quite possible the Hard drive may have issue, or the display. If it does not quite possible the motherboard may have gone bad. Also if the laptop turns on after leaving it off for sometime, then the possible cause may be overheating or hard drive issue.
I hope this helps!
Re:Tried with a new PSU and it works. Thanks for the help guys.
Re:Originally posted by: guy
That white goo is silicone adhesive and is used to stabilize the board population during final assembly, shipping and handling.
Could be any number of things. Is the PSU 5 years old? What brand/model is it?
Are any of the little aluminum capacitor covers domed or show the slightest about of a brown spot?
oh i'm really sorry i never actually saw your question (firefox caching issue on this computer). I was just posting an update in hopes that it would help with a solution.
The PSU is a Silverstone 400W (don't have model# present, sorry) that I've only owned for 8 months.
There are no bulging/leaking/mal-formed caps or indications of electrical component breakdown issues anywhere on the board or in the power supply.
I am going to grab a PSU and try that and see if it fixes the problem. Once again, sorry guy, didn't mean to offend you.
Re:If you shorted the green wire to a black ground wire and it didn't turn on, then the thing is shot. There is almost no chance that the PSU isn't dead. The failure sounded like a PSU problem to me, and the only way a PSU wouldn't turn on but still be functional would be if one of the components shorted out and the PSU took a hit. Then it would need to be turned off and rest for an hour or so, then it should work again.
Re:I asked three questions in a civil manner, in an attempt to offer real help.
I get one answer. I'm outta here.
Re:I've got lots of spare parts in the basement for such occurances. I assume that don't have a spare power supply to put in the machine or you would have done it. But with trying it shorted and not starting, I would be confident enough to purchase another power supply.
Re:Update; The PSU is only about 8 months old. I found a tutorial on line that allows you to jump the +5Vdc to the GND to "switch" the PSU on. I tried that and the fan did not start spinning so I'm assuming at this point that it's the PSU. Are there any other tests that I can do to confirm this is true? Is that an exceptable method to use for this situation?
Re:That white goo is silicone adhesive and is used to stabilize the board population during final assembly, shipping and handling.
Could be any number of things. Is the PSU 5 years old? What brand/model is it?
Are any of the little aluminum capacitor covers domed or show the slightest about of a brown spot?
0 Comments.