Re: Corsair cx600 psu & ASRock B450Pro4 mobo wont start

Hi

Just looked up the Bulk Cap, its a ...

Samxon
270uf
400v
85°c
LP(M)
Dia 25mm
Hight 40mm
Lead spacing 10mm

Can you recommend good series for this Capacitor ?

Assuming the same makes as before are all good.

Thanks

PS Is there somewhere that explains what series caps you should chose ?
Also I assume which make is down to knowledge of what makes are good.

Re: Corsair cx600 psu & ASRock B450Pro4 mobo wont start

Hi Momaka,

Thanks for all that info :-)

I'm going to change the PSU's 5vsb cap and the bulk cap then make sure the Mobo is good.
(see post #3)

Will keep you all updated :-)

Re: Corsair cx600 psu & ASRock B450Pro4 mobo wont start

Hi Momaka,

The Corsair CX600 PSU is over 8 years old, spent at least 4 years in a bit coin mining rig (on 24/7) before I bought it second hand. Then I have used it in a media center also on 24/7.

I have opened it up and found a very very slightly domed Samxon 2200uf 10v GF(M) ZDD 105°C8.
I fairly sure this is the smoothing cap on the 5vsb. + pin connects directly to the purple 5vsb wire - pin goes to transformer terminal.

Can't find these anywhere is there a replacement for...

Re: Corsair cx600 psu & ASRock B450Pro4 mobo wont start

Hi JNP-3R

Thanks for your reply,

I did try grounding PS_ON with the 24 pin and 12v 8pin cpu plugged in and the +5vsb fluctuates between 1.1v & 1.9v.

Re: Help with a Strange Resistor please!

Hi

This looks to me like a MILL Standard Resister
If so its a 4 band resister.
the 5th band just means "military Solderable leads"

Band 1 Red 2
Band 2 Yellow 4
Band 3 Silver X0.01 Multiplier
Band 4 Gold 5% tolerance

0.24 ohms @ 5%

hope this helps

HI I have a PC using a Corsair cx600 psu & ASRock B450 Pro4 mother board that won't power on after a shutdown (replaced a dead drive in a raid array) Not the boot drive.

With most things unplugged, including the 24 pin ATX connector, but not the ATX12v to cpu, I have +5.01V on the +5vsb pin 9 from the PSU. When I plug the 24 pin back in to the mobo, the +5vsb fluctuates between 1.1v & 1.9v.

Not sure where to go from here ?

Is the PSU at fault or is the mobo causing the problem

Look forward to any help :-)

If I plug the 24...

Re: New Members - please post your introductions here

Hi I'm Danny or Ibod. I've been interested in electronics since a very young age (9).

I started with a Phillips Electronics Kit as a 9th birthday present. Even before then I would take things apart ( hopefully ) to see how they worked. Mostly they still worked after my investigations.

I have worked in many trades including as a workshop TV engineer for Phillips in my 20s. Most of my life I have managed to fix most things that break.

Now I'm in my 60s and still want to fix anything...