Bad PSU shutting down my PC

[rogerazambuja]

Hi guys. I'm having a problem with my C3 Tech PSU 750W (brazilian "name" of Corsair TX750). My PC sometimes shut down randomly and sometimes it doesn't even power up. I figured out that the PSU is the problem.
Then I read some people saying that using a hair dryer on my PSU for a few minutes maybe could solve the problem and it did! But, it just works sometimes (now for example, I'm typing from my PC with this faulty PSU). But sometimes I use the hair dryer but the PC just works for a few second or minutes then shuts down.
I have already tried turn the PSU on without the PC (bridging 3-4 pins) and the problem persists.
My question is, knowing these simptons, could it be some faulty capacitor (visually there is no blown capacitor)?

[stj]

Re: Bad PSU shutting down my PC

sounds like caps, possibly the smaller ones

can you post foto's ?

[rogerazambuja]

Re: Bad PSU shutting down my PC

sounds like caps, possibly the smaller ones

can you post foto's ?

The smaller ones are very difficult to reach because of wires and the transistor's heat sink. They don't look like blown caps, but I will take a picture tomorrow.

[c_hegge]

Re: Bad PSU shutting down my PC

If it really is the same as the TX750, then it will have 100% Japanese caps, which are unlikely to be the problem.

[stj]

Re: Bad PSU shutting down my PC

general foto's to see the layout will be fine.

[rogerazambuja]

Re: Bad PSU shutting down my PC

If it really is the same as the TX750, then it will have 100% Japanese caps, which are unlikely to be the problem.

According to a brazilian website, it is. Here is some pictures of this PSU:

If you need real pictures from my PSU, let me know. These one are from the website: http://www.clubedohardware.com.br/ar...h-psh750v/1580

[shovenose]

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.

[stj]

Re: Bad PSU shutting down my PC

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

[Per Hansson]

Re: Bad PSU shutting down my PC

Please post pictures of your actual PSU in some different angels

[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.

[stj]

Re: Bad PSU shutting down my PC

you mean angles.

[shovenose]

Re: Bad PSU shutting down my PC

you mean angles.

no it is holy power supply

[c_hegge]

Re: Bad PSU shutting down my PC

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

[RJARRRPCGP]

Re: Bad PSU shutting down my PC

Guardian angels being on the lookout.

[rogerazambuja]

Re: Bad PSU shutting down my PC

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

I will... soon...

[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.

[goodpsusearch]

Re: Bad PSU shutting down my PC

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

[stj]

Re: Bad PSU shutting down my PC

TEAPO caps.

you park in your house?

[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

[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.