Need Help Identifying 2 Resistors

[Jose Noway]

Hello,

Just heard a loud pop when trying to boot the computer. Opened the power supply and found two burnt out resistors. I've attached two pictures, so if you know what they are and where I could potentially buy them I would be very grateful.

Resistor 1

Resistor 2

 

[Someone Somewhere]

It's likely that the resistors weren't what failed. Something else blew and they were collateral.

I'd strongly suggest just getting a new power supply. There's dangerous voltages in them, and it's unlikely that you'll be able to fix it - probably popped a driver IC or FETs.

 

[galeener]

http://www.digikey.com/-/media/Images/Marketing/Resources/Calculators/resistor-color-chart.jpg?la=en-US&ts=72364a89-2139-476a-8a54-8d78dacd29ff
Repairing a psu is not something you just throw parts at you really need to be able to check the circuits and the components or you may miss something and blow your whole system or yourself up.

 

[Jose Noway]

Thanks, but not what I was asking. I'm aware of the risks. Still looking for the answer to the question.

 

[galeener]

If you can read the resistor color code I posted it will tell you the resistor values.

 

[Shaun o]

What you are looking at there, as said is not the problem.
Resistors are secondary stage parts, designed to reduce the flow of electricity down, or around a circuit.
As bad as they look it says that a higher voltage than expected in the circuit was applied.

That means, that either the cause of the burned resistors were due to faulty voltage regulation.
Or mosfet switching failure in a circuit, before the resistor.

A mosfet for example takes a lot less current or amp rating to turn it on so it can switch. but the voltage or amount of amps that come out of the other conducting side as a result are boosted and higher delivering from 10A up to 50 amperes of current.

If you have ever heard about story's of people being electrocuted and severely burned it is the Amp rating that does the damage burning people or killing them by stopping there heart.

Put simply it`s not worth it, and in any case the resulting attempt to fix the problem with replacing two resistors is more likely to result in an electrical fire. The fact that they are burned so bad tells you there is a major problem in the high voltage stage of the circuit.


Open the bin, drop it in !. For a win !.

Anyway.

Brown, Black Brown, Gold : = 100 Ohms with a 5% tolerance

Here use this, for the Ohms calculation of your resistors based on the band colors.

http://www.digikey.co.uk/en/resources/conversion-calculators/conversion-calculator-resistor-color-code-4-band

 

[helpstar]

Which power supply is it exactly? Brand and model please