Replacing PSU Fuses

[3TH3R34L]

My PSU on my muck around computer decided to die over the weekend :bang head

I found that the fuse had blown.

Does anyone know what voltage of fuse can be used to replace it, all i have is 12 volt car fuses and im sure i have 250v in teh florecent lights in the garage ( also i have one 250v in my fish tank that could be taken away ).

i'm sure 12 volt would just blow up if i tried using them..so will 250v do?


if i hadn't explained this enough i blame it on the 16 hour lan party...

Cheers,
3TH3R34L

[DuctJet]

You can take the old fuse to Radio Shack or Fry's an let them match it up with the old fuse :D

[Aphex_Tom_9]

if you want, you can just bypass the fuse altogether...it's dangerous though. i did it once.

[3TH3R34L]

You can take the old fuse to Radio Shack or Fry's an let them match it up with the old fuse :D

...I could do that..but that would involve flying to america :eh?:

any other ideas?

i can tell you for sure that it is the fuse that has blown and not any other part, because i tested it with my hands ( DO NOT EVER TOUCH ANY ELECTRICAL PART THAT COULD POSSIBLY HOLD 230V OF ELCTRICITY :bang head - as i found out 230v does do some weird stuff to your heart..)

i could do a trial and error thing..the first time i actually got a so called " pro " to try and replace the fuse ( unfortunately it has happend before due to excessive overclocking ) and he ended up sending the power directly into the HDD and looped it straight back to the psu...BIG no no...

[3TH3R34L]

if you want, you can just bypass the fuse altogether...it's dangerous though. i did it once.

yeah i did think of that, it would be extremely simple to do... how did it work..dangerous..sounds fun ;) how well does it work and i guess the psu will just die if something such as a power surge happened.

[Electron Chaser]

Yes a 250V fuse would work fine. Just make sure it rated to handle the amp load of the one you are replacing. You should be able to read the numbers off the fuse it should be imprinted on the metal caps. In addition there are several types of fuses in that body style. Fast-Acting, Slo-Blow etc. Try to match it up as close as possible. If you give me the numbers off of it I could probably cross reference one for you.

[3TH3R34L]

I found out it is a fast acting 250v fuse, so i will go to an electronic store and buy one..for now im using a paperclip to bypass the fuse and complete the circuit.

Thankyou Very much for your help and opinions

Cheers,
3TH3R34L

[Anjow]

I replaced the fuse in one of mine with a 5A 250v one, which I think worked. I say I think, because it blew up (with an explosion and everything) when I plugged it in to test it. That was probably because I tried to modify it though.

[3TH3R34L]

lol, it happened to me once upon a time... but that was due to cable problems ( cable went from psu into the cdrom and back to the psu, causing the electricity to meet in the fuse.

[moz_21]

if you want, you can just bypass the fuse altogether...it's dangerous though. i did it once.

I did it too. PS blew a mosfet... and I didn't know... so then it blew something else... oops :o

[SavageBasher]

If the fuse had blown then that means there is a fault in the power supply somewhere.

[ghettocomp]

If the fuse had blown then that means there is a fault in the power supply somewhere.

I am in aggreement with SavageBasher, if the fuse has blown then something went wrong. It may not be apparent right now, but wait it may rear its ugly head and eat your mobo alive later :(

[Electron Chaser]

I would replace the fuse then set a jumper to start the PSU through the ATX connector and bench test it. And get a meter to read all the voltages before you hook it back up again to your rig.

[Aphex_Tom_9]

If the fuse had blown then that means there is a fault in the power supply somewhere.
...or you managed to short one of the heatsinks to the case of the psu or a ground...

[3TH3R34L]

i did a voltage test on absolutely evrything testable in my psu today and found no problems, everything looks good, but if ones psu where to just die...that would get someone wondering if there weren't any problems.

[SavageBasher]

Which power supply is it?

[3TH3R34L]

Its just a standard one you get with the pc ( i got it with my $100 P2 )

but on the PSU it has the brand named "NECH"

i think it is a 200w but i am not sure..i'm just lucky this isn't my only pc.

[larrymoencurly]

It's probably 250W, fast-blow, and 8-9 amps (but if you live in a country where the line voltage is 220-240VAC, then the fuse should be 4-5 amps).

If you replace the fuse and it blows again, then probably the high voltage transistors have shorted.

[Sancho]

Yeah I bypassed the fuse in one of my old comps and it lasted ~2 years before the thing finally roasted itself, taking most of the computer with it.