PSU Fan Replacement

[GouStoulos]

Hello.

Yes i am aware how dangerous it is, to *** arround with psu's.

I have an old Thermaltak TR2 550Watt Psu. It still runs like a dream, and i had no problems with it. 

Yesterday i decided to clean it for the first time, after so many years. I got the dust out, and i decided to replace the fan aswell(it was making some funny noises).

I replaced it with a spare one i had laying arround, and it looks to be fine. But i have a question. The old fan was a 0.5A fan, and the ''new'' is only 0.21A. 

Is there going to be a problem? I didnt notice any kind of overheating, even on heavy loads

 

edit: i also have a 0.3A fan laying arround. Should i use this one?

[pwn_intended]

The amperage on the fan won't matter if it's lower than the original, and shouldn't matter even if its higher by a bit either. PSU's don't heat up THAT much (compared to CPU and GPU) so pretty much any fan should have enough airflow to keep it within safe operating temperature.

[TheRandomness]

Don't open the PSU if it's been on in the past week. 

[Quaker]

The amperage of the fan isn't necessarily of importance. The older fan may just be less power efficient than the new one. However, the amperage could indicate that the older fan is capable of higher air flow (CFM) that the newer one. As long as you have enough airflow to keep the power supply from overheating, there's no problem, but .....

 

P.S. with regard to opening power supplies:

While the PSU is still mounted in the case and connected normally, unplug the supply from the "mains" (wall) and then press the power button on the computer. This should discharge any residual voltage and make it safe to work on.

[GouStoulos]

Thanks for the replies guys.

Yes i know how to discharge a power suply  i would use a resistor to discharge the big caps, if i was about to remove the board. But i didnt anyway. I just opened the box, replaced the fan, blew the dust out, and close it back.

The psu runs, as it was running before. The air coming from the exhaust is nice and cool(for a psu under heavy load), but the housing is kinda warm. I read that this is normal. To be fair, room temperature is about 34 to 35 degrees.

@Quaker, the old one is capable of 97cfm, and the new one is capable of 58cfm(got those numbers from google)

So, its ok to replace a psu fan with a lower current one? 

[STRMfrmXMN]

1 hour ago, GouStoulos said:

Hello.

Yes i am aware how dangerous it is, to *** arround with psu's.

I have an old Thermaltak TR2 550Watt Psu. It still runs like a dream, and i had no problems with it. 

Yesterday i decided to clean it for the first time, after so many years. I got the dust out, and i decided to replace the fan aswell(it was making some funny noises).

I replaced it with a spare one i had laying arround, and it looks to be fine. But i have a question. The old fan was a 0.5A fan, and the ''new'' is only 0.21A. 

Is there going to be a problem? I didnt notice any kind of overheating, even on heavy loads

 

edit: i also have a 0.3A fan laying arround. Should i use this one?

The Thermaltake TR2, despite you saying you have never had problems with it, is a disastrously terrible PSU. Definitely not worth replacing the fan on. Just get a quieter PSU like an EVGA G2.

[GouStoulos]

i know, but i cant afford anything right now.

i will be getting a thermaltake toughpower 700watt(4x18A 12v rails), used from a friend(price is very good) in about 2 or 3 weeks. 

its a bit of overkill for my system, but its nice to have some spare power

i just could not handle the old fan anymore,  so i replaced it

thanks for all the help guys