Power Supply Fail: Switched Voltage Switch when PC was on.

[Lealta]

Hi, I was managing my cables in my PC yesterday and I didn't know what that red-ish pink-ish switch was at the back of the power supply. The switch said 230, and when I switched it over the PC stopped working.

I was wondering what happened here, and if I can possibly fix this. I don't currently have enough money for another PSU.

The PSU is a ENERMAX 250w EG265p-VB power supply, my components are listed below:

CPU: Intel® Core™2 Duo Processor E7500 2.93Ghz

RAM: 4gb Kingston RAM (2x2 sticks)

GPU: Sapphire Radeon HD 7750 2gb DDR3 clocked at 900mhz

Motherboard: Unknown, but Intel build with s775 and it has 2 RAM slots.

Thank you for reading my post.

 

[hunter315]

Whats the line voltage in your region? Since it said 230 before you flipped it and it stopped working I'm guessing you are in a 230V region in which case you just blasted the primary side of the power supply.

Older PSUs had a switch on the back to set them to 115V or 230V, if you set it to 115V it engages a voltage doubler circuit so that everything from that point forward can be the same, the problem is that if you set it to 115 when you are on 230V you now have 460V at a point that was only meant for 230V which pretty much immediately nukes the power supply.

Time to get yourself a new supply, get one that was actually made in the last 10 years, it should have 80+ certification and Active PFC, the Active PFC has the side benefit of automatically adjusting to the input voltage so the little red switch should not be found on any modern supplies.

 

[Lealta]

Whats the line voltage in your region? Since it said 230 before you flipped it and it stopped working I'm guessing you are in a 230V region in which case you just blasted the primary side of the power supply.

Older PSUs had a switch on the back to set them to 115V or 230V, if you set it to 115V it engages a voltage doubler circuit so that everything from that point forward can be the same, the problem is that if you set it to 115 when you are on 230V you now have 460V at a point that was only meant for 230V which pretty much immediately nukes the power supply.

Time to get yourself a new supply, get one that was actually made in the last 10 years, it should have 80+ certification and Active PFC, the Active PFC has the side benefit of automatically adjusting to the input voltage so the little red switch should not be found on any modern supplies.

Yes, I switched the switch from 230v to 115v. I might get a Cooler Master 400w PSU for $60 as I have practically no money at all, here it is: http://www.pbtech.co.nz/index.php?z=p&p=PSUCLM0400&name=COOLER-MASTER-Elite-Power-400W-OEM-20+4-pin--4+4-p

 

[hunter315]

Wow, NZ prices and availability suck.....

That PSU is a really old design and I would never recommend it, butttt everything else is at least 50% more :/ I don't like your options, but the first good PSU in your region is ~$100 so you make do with what you can get unless you can get something in from Australia.