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Thread ID: 64137 2005-12-04 22:58:00 psu or ? drcspy (146) Press F1
Post ID Timestamp Content User
410228 2005-12-05 05:29:00 A surge which takes out a modem, or even parts on the MB usually comes through the modem. :D

The PSU might die from a power surge. But it will usually just die. A big surge can zap the input diodes. A shorted main capacitor might pop the diodes, but more likely just the internal fuse. A shorted switching transistor can't hurt the computer, because that causes no output. Transformers don't transform DC.
Graham L (2)
410229 2005-12-05 05:42:00 re#9......................NO ONE KNOWS EVERYTHING...........and while I'm a good tech i dont know how to ascertain wether the fault lies within the psu or was caused by external sources.........so 'bartsdadhomer'............that' wasn't a nice comment and I dont appreciate it ..............NOT FUNNY...........

and in case you haveint noticed it's not very often i do ask for advice............i'd suggest about 99.99% of my, over 1000 posts are GIVING advice....

Godfather.......how could you possibly tell if a device failed due to age, a manufacturing fault or an overvoltage caused by a momentary "surge"...........errrrrrr well exactly....that's what I wanted to know..........i DID ask if there was ANY way of ascertaining wether the fault was external or internal and you have cleared that up..........ta

and grahamL thanks for that extra bit of info too yes good logic.......
drcspy (146)
410230 2005-12-05 06:11:00 A surge which takes out a modem, or even parts on the MB usually comes through the modem. :D

I've only had one situation where there was proof a surge caused problems.
I replaced 6 computers from one street a couple of years ago, I didn't even salvage enough hardware to make one up out of the 6 and it sure as hell didn't come through a modem
She was a good one though, fried a couple of tv's, washing machines etc
local power company admitted liability and paid up
bartsdadhomer (80)
410231 2005-12-05 06:18:00 had a similar situation where a powersurge was without doubt the guilty party due to the fact that in a certain small town it killed almost EVERY electrical/electronic appliance in the town.......includin puters........ drcspy (146)
410232 2005-12-05 09:26:00 Good PSUs (well, the ones I buy) are designed to survive a surge and don't fry the rest of your computer when one occurs. MikeS (756)
410233 2005-12-05 22:07:00 psu karked it ........dunno why....no other damage..... drcspy (146)
410234 2005-12-05 22:54:00 Remember, if you poke around inside you will void any warranty. ...

Just a gentle reminder, you do not invalidate your warranty just because you work inside your computer. there has to be a connection between your actions and the failure for that to happen, ans simply opening the case isn't adequate cause to refuse a warranty claim.

Damage the MB by putting RAM in the wrong way round, or modify the CPU/video chip cooling and you might have problems if those items fail, but consumer law is on your side if there is any attempt to avoid meeting warranty obligations for unrelated failures just because you added some RAM or installed a DVD writer etc.

Know your rights.

Cheers

Billy 8-{)
Billy T (70)
410235 2005-12-05 23:08:00 yeh thats correct.........altho some systems have a sticker on them saying that if you have opened the case then the warranty will revert to a 'limited' one.........anyway in this situation it wasn't relevant i'd built this system myself........anyway my supplier replaced the psu without question... drcspy (146)
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