Cooltek 600W (CT-600) recapped...issues

[Ludran]

First of all I would like to say this is an excellent forum with a lot of great tips and tricks.

I recapped three psu´s late weekend.... two chieftec 360w and one cooltek 600w the chiefteks now work great with no issues but the cooltek is giving me lots of headache.

A little background about the cooltek bought it in the beginning of 2006

http://www.driverheaven.net/reviews/...600w/index.htm

http://www.sweclockers.com/articles_...id=570&page=10

http://www.cooltek.de/

It started after a couple of years to have cold boot-up problems running a dual core opteron system with a HD2900xt until it refused to boot it anymore
tried it in another system amd socket 754 with a Radeon 9600xt and it worked there until it started to spin the northbridge fan and the the other fans as well as the fan controller was flickering sending out 4.8V on the 12V line and 1.75V on the 5V line when the computer was in stand-by.

I decided to check it out and to my surprise in had Fuhjyyu caps on the secondary and those had swollen very bad so I recapped it using Rubicon and Teapos I know Teapos isn't preferable but it was what I had at hand

However it didn't do the trick and the symtoms remained it can't boot any systems... tried four of them from socket A to phenom II .

12V line still measures around 4.8V in standby and 5V line around 1.75V

Before recapping the lines were fluctuating +/- 0.1V without load but now they are stable but it still as useless.

I hope someone here has an ideas about what the fault might be

[370forlife]

Re: Cooltek 600W (CT-600) recapped...issues

Very Important...did you use ruby con or rubicon. Also, did you test the caps with a esr meter to make sure they were ok?

[Ludran]

Re: Cooltek 600W (CT-600) recapped...issues

it was Rubycon I used but mostly Teapos unfortunatly and I never checked them either since I don't have a esr meter but they are new have had them laying around for a few years.I know it´s utterly stupid but I was anxious to try it out I can't get hold of any good caps locally here so....but hell I could do the chinese touture of recapping it again and it would be easiest for me to order from Elfa in Sweden.

The 7 caps I changed were marked

4. 3300uF 10V.0511.vent EC105 Celcius diameter 10mm, pitch 5mm
1. 4700uF 16V.0511.vent EC105 Celcius diameter 13mm pitch 5mm
1. 1500uF 10V.CA08.vent 105celcius C(M) diameter 10mm
1. 1000uF 10V.0509.vent 105celcius diamter 8mm

to be changed to

4.Sanyo 10ME3300WX
Voltage rating: 10 V dc
Capacitance: 3300 uF
Tolerance: ±20 %
Max. ripple current: 2.77 A @ 100 kHz 105°C
ESR:
Impedance: 0.018 Ω @ 100 kHz
Dissipation factor: 0.23 @ 120 Hz
Diameter: 12.5 mm
Height: 25 mm
Pitch: 5 mm

1.Sanyo 16ME4700AX
Voltage rating: 16 V dc
Capacitance: 4700 uF
Tolerance: ±20 %
Max. ripple current: 2.55 A @ 100 kHz 105°C
ESR:
Impedance: 0.018 Ω @ 100 kHz
Dissipation factor: 0.24 @ 120 Hz
Diameter: 16 mm
Height: 35 mm
Pitch: 7.5 mm

1.Sanyo 10ME2200WX
Voltage rating: 10 V dc
Capacitance: 2200 uF
Tolerance: ±20 %
Max. ripple current: 2.36 A @ 100 kHz 105°C
ESR:
Impedance: 0.021 Ω @ 100 kHz
Dissipation factor: 0.21 @ 120 Hz
Diameter: 12.5 mm
Height: 25 mm
Pitch: 5 mm

1.Sanyo 10ME1000WX
Voltage rating: 10 V dc
Capacitance: 1000 uF
Tolerance: ±20 %
Max. ripple current: 1.43 A @ 100 kHz 105°C
ESR:
Impedance: 0.038 Ω @ 100 kHz
Dissipation factor: 0.19 @ 120 Hz
Diameter: 10 mm
Height: 16 mm
Pitch: 5 mm

thou the diameter of them might cause problems getting them there as well as the pitch on 4700uF since it's very crowded in there

I continue to check if elfa has any other suitable size wise