0
My dell pc Power Supply uses 220V and my country standard too. And i chage the Voltage from 220v to 110 V at the back of PSU. And suddenly makes sound and smokes after that its stops working. chance to repair the power supply unit Or buy new?
0
My dell pc Power Supply uses 220V and my country standard too. And i chage the Voltage from 220v to 110 V at the back of PSU. And suddenly makes sound and smokes after that its stops working. chance to repair the power supply unit Or buy new?
1
Yea, definitely time to get a new PSU. Hopefully that was the only thing damaged, but you won't be able to tell until you get a working PSU in there.
Fingers crossed.
1
You've destroyed your PSU. Time to buy a new one.
By switching the input selector from 240V -> 110V, you were telling the PSU "The input voltage is only 110V now."
Except it wasn't 110V. You're still in a country with a 220V supply, so you effectively gave it twice the voltage it was expecting.
Hence the smoke.
On the plus side, at least now you know what that switch does!
1
Its probably cheaper to buy a new PSU because of labour costs, but if you live in a country where labour is cheap you may be able to get it repaired more cheaply. No one can answer this definitively
At a wild guess there is a capacitor that went bang. If you replace the capacitor you could be fine, but playing inside a PSU is supposed to be a bad idea... (In other words lots of people recommend against it)
3It's a desktop. Laptops don't have voltage input selectors on them. – Mr Ethernet – 2019-08-07T20:31:38.463
@wrecclesham of-course (doh!) – davidgo – 2019-08-07T20:35:48.200
it may be an idea to remove that pic. Some people might not realise that that kind of damage is not realistic, and this photo is not "real" (ie a power supply cant just burst into flames like that) – davidgo – 2019-08-07T20:50:28.933
It was a great pic though! – Mr Ethernet – 2019-08-07T20:51:51.307
PSUs can catch fire. It's not common but there are numerous documented instances of it happening: https://linustechtips.com/main/topic/982932-evga-psu-lit-my-house-on-fire-/
– Mr Ethernet – 2019-08-07T21:07:45.340Clicked on link. Was disappointed. Ni evidencr if PSU burning. (not really a surprise. Metal does not burn) – davidgo – 2019-08-07T21:30:43.277
It isn't the metal chassis that catches fire but the components, which mostly consist of non-metal elements. The poster even stated: "Insurance took the entire set up as evidence, fire inspectors confirmed it was the power supply. Is this common?? " Forensic investigators confirmed it was the power supply. If something is capable of smoking, it's capable of burning at a high enough temperature. This is why server room fire suppression systems exist. – Mr Ethernet – 2019-08-07T21:53:07.843
1Should be labeled the auto destruct switch! – Moab – 2019-08-07T22:25:08.540
@wrecclesham Absolutely a PSU/computer can be the catalist to start a fire. – davidgo – 2019-08-07T22:33:30.780