Bad PSU shutting down my PC

[rogerazambuja]

Re: Bad PSU shutting down my PC

If the PC is reseting during load, and heating the PSU temporarily fixes the issue, then capacitors are the most probable culprit. Just replace the capacitors on the secondary side with equvalent long life ones with at least 105°C rating. Manufacturer put a bunch of wires over them blocking the airflow and overheating them, causing them to prematurely fail.

Not necessarily during load, it happens usually a few minutes after boot. I will test the capacitors on the secondary side soon. Unfortunately I don't have a capacimeter, but I will try to borrow one.

Seems like the platform in Chieftec I recently wrote article 'bout http://www.hardwareinsights.com/wp/r...c-cft-750-14c/ Bad caps…

Looking the pictures I would say it is the same PSU.

[Behemot]

Re: Bad PSU shutting down my PC

Seems like the platform in Chieftec I recently wrote article 'bout http://www.hardwareinsights.com/wp/r...c-cft-750-14c/ Bad caps…

[AkumAone]

Re: Bad PSU shutting down my PC

If the PC is reseting during load, and heating the PSU temporarily fixes the issue, then capacitors are the most probable culprit. Just replace the capacitors on the secondary side with equvalent long life ones with at least 105°C rating. Manufacturer put a bunch of wires over them blocking the airflow and overheating them, causing them to prematurely fail.

[Pentium4]

Re: Bad PSU shutting down my PC

Yeah I would still look for bad caps. It sounds like that's what the issue is. Teapo has a high likelihood of failing without showing symptoms.

[rogerazambuja]

Re: Bad PSU shutting down my PC

After 4 days away home, I turned on my PC yesterday and after several hours running it didn't turn off. I didn't use a hair dryer on PSU, I only turned it on and no problems until now.
Maybe after 4 days of resting my PSU fixed itself
Should I still look for bad caps on it?

Edit: It did shut down a few minutes after I post here.

[mikail13]

Re: Bad PSU shutting down my PC

i have a same issue.
My pc is shutting down suddenly.it's the PSU issue. That's obvious.i 've tested.

There is no blown caps in it.

but i desolder biggest couple of caps.

They must be 820 mF.
one is 720mF other 650 mF.

are they reason of shutting?

[ep9es]

Re: Bad PSU shutting down my PC

Nope

But an esr meter is an excellent investment. You can find on ebay at very low price.

I search ESR meter tester:
http://www.ebay.com/sch/Electrical-T...tester&_sop=12


Any suggestions?



Thanks


.

[goodpsusearch]

Re: Bad PSU shutting down my PC

Nope

But an esr meter is an excellent investment. You can find on ebay at very low price.

[rogerazambuja]

Re: Bad PSU shutting down my PC

Take an esr/capacitance meter and test every single cap of this psu.

I just have a simple digital multimeter. Is there a way to test caps with it?

TEAPO caps.

you park in your house?

That is a garage, lol

[stj]

Re: Bad PSU shutting down my PC

TEAPO caps.

you park in your house?

[goodpsusearch]

Re: Bad PSU shutting down my PC

Take an esr/capacitance meter and test every single cap of this psu.

[rogerazambuja]

Re: Bad PSU shutting down my PC

Here are some pictures of my PSU:

There are some caps under the heat sink and wires, they all seems good to me. I will try to take a picture of them but will gonna be a little bit hard to do it.

[rogerazambuja]

Re: Bad PSU shutting down my PC

haha. Thou shalt post pictures of thy own power supply.

I will... soon...

[RJARRRPCGP]

Re: Bad PSU shutting down my PC

Guardian angels being on the lookout.

[c_hegge]

Re: Bad PSU shutting down my PC

haha. Thou shalt post pictures of thy own power supply.

[shovenose]

Re: Bad PSU shutting down my PC

you mean angles.

no it is holy power supply

[stj]

Re: Bad PSU shutting down my PC

you mean angles.

[rogerazambuja]

Re: Bad PSU shutting down my PC

according to that review, when translated, it uses Samxon caps in the secondary, based on a CWT design.

Yes, my bad. This PSU is maded by CWT, based on a CWT design.

Please post pictures of your actual PSU in some different angels

I will, as soon as it shut down again. It is working right now, after I used a hair dryer on it for a 3-4 minutes. But I did try to turn on my PC before without using hair dryer and it turned off after 5 minutes.

[Per Hansson]

Re: Bad PSU shutting down my PC

Please post pictures of your actual PSU in some different angels

[stj]

Re: Bad PSU shutting down my PC

and i see koshin and fukyu and a single ncc on the pfc board.