Problem with my power supply

JustinK · 01-20-2008, 02:53 AM

I have an Antec Phantom 500.

I turned my computer off last night and when I woke up in the morning, I turn on my computer and it turns on for about a split second and then it turns off, (this is probably the capacitor discharging). Also The fan of my CPU turns on as well.

I connected the power supply to another system and it happened exactly the same thing.

Now this is what happened, I opened the power supply and took it out of the whole case, just to check if there was anything burned but all components looked fine so I left it open for about a day, afterwards I connected it again just to give it one last try and it WORKED! I used my computer up until 2am. However at 10am I woke up, turned it on and the same problem occurred again....

Anyone knows what component/s in the power supply might be causing this.

Thanks

**speedster123** · 01-20-2008, 06:19 AM

welcome
it is not safe to dis-assemble a power supply
the electrical charge may remain in the caps for quite a time

what predetermined temp to you choose for the psu fan to come on?
with its passive cooling, the user chooses the temp for the fan to start.

JustinK · 01-20-2008, 08:47 AM

I have always had it set to number 1.

**linderman** · 01-20-2008, 06:13 PM

I strongly advise against trying to "fix' a defective unit

many years ago we played with just such an adventure, we replaced some leaking caps that caused the PSU to auto shutdown, along with a failed fan

the repaired PSU ran perfectly for days, then one day we got a wiff of that familiar hot electrical smell then it burst into flames.

let me tell you first hand, all those plastic coated wires and plastic case pieces burn as well as gasoline. we were lucky enough to throw the whole computer thru the window where it burned very nicely.

could well have burned the building to the ground.

that was my last PSU repair ........ we only fixed the symptom of the PSU failure (leaking caps) we did not fix the culprit that was over volting the caps!! >>>>>>>>>>>>the risk is not worth the modest price of a new unit!

01-20-2008, 02:53 AM	#1 (permalink)
JustinK Registered User Join Date: Jan 2008 Posts: 4 OS: xp	Problem with my power supply I have an Antec Phantom 500. I turned my computer off last night and when I woke up in the morning, I turn on my computer and it turns on for about a split second and then it turns off, (this is probably the capacitor discharging). Also The fan of my CPU turns on as well. I connected the power supply to another system and it happened exactly the same thing. Now this is what happened, I opened the power supply and took it out of the whole case, just to check if there was anything burned but all components looked fine so I left it open for about a day, afterwards I connected it again just to give it one last try and it WORKED! I used my computer up until 2am. However at 10am I woke up, turned it on and the same problem occurred again.... Anyone knows what component/s in the power supply might be causing this. Thanks

01-20-2008, 06:19 AM	#2 (permalink)
speedster123 Mentor Join Date: Oct 2006 Location: United States-New York Posts: 3,911 OS: xp pro My System	Re: Problem with my power supply welcome it is not safe to dis-assemble a power supply the electrical charge may remain in the caps for quite a time what predetermined temp to you choose for the psu fan to come on? with its passive cooling, the user chooses the temp for the fan to start. __________________ Infection Detection and Removal Thermal Grease Instructions Bench Test

01-20-2008, 08:47 AM	#3 (permalink)
JustinK Registered User Join Date: Jan 2008 Posts: 4 OS: xp	Re: Problem with my power supply I have always had it set to number 1.

01-20-2008, 06:13 PM	#4 (permalink)
linderman Moderator, Hardware Team Join Date: May 2005 Posts: 14,056 OS: win 2000 pro / Win XP pro My System	Re: Problem with my power supply I strongly advise against trying to "fix' a defective unit many years ago we played with just such an adventure, we replaced some leaking caps that caused the PSU to auto shutdown, along with a failed fan the repaired PSU ran perfectly for days, then one day we got a wiff of that familiar hot electrical smell then it burst into flames. let me tell you first hand, all those plastic coated wires and plastic case pieces burn as well as gasoline. we were lucky enough to throw the whole computer thru the window where it burned very nicely. could well have burned the building to the ground. that was my last PSU repair ........ we only fixed the symptom of the PSU failure (leaking caps) we did not fix the culprit that was over volting the caps!! >>>>>>>>>>>>the risk is not worth the modest price of a new unit! __________________ If you cant be polite and friendly; then please be silent. Last edited by linderman : 01-20-2008 at 06:16 PM.