What could be causing my power supplies to go?

[Jeffwo]

Ok...just installed my 3rd power supply (This one was a 300w Enlight, 1st one was a Tiger, 2nd an Enermax) The other 2 ran for awhile and just quit. This one fried upon 1st flip of the 'on' switch.

I can't find anything that could be causing a short (mobo touching case, etc).

Where should I start to correct this problem?

Rig consists of a generic case, Epox 8k7a momo w/1G T-bird, 256 Mushkin PS 2100 DDR ram.

Thanks in advance,
Jeff

 

[pspada]

Perhaps you need to go to a 350w?

 

[Jeffwo]

Originally posted by: pspada
Perhaps you need to go to a 350w?

Do the power supplies shoot because they are rated too low for this mobo/cpu?

Jeff

 

[dml54]

Had the same problem with a Duron and 250w PS's. Once I got a 300w it was fine

 

[EeyoreX]

I am going to go out on a limb here and say that 300 watts to power that system is more than enough. Unless there are a million-and-one lights, a watercooling setup and you rigged your PSU to power the lights in your office too. I can't even imagine that setup needing 300 watts, much less more than that...

I would start by looking at the possability of bad power from the outlets. If two of them "just quit" after a "while" and this one "fried" that seems more indicative of a larger problem.

\Dan

 

[Jeffwo]

Originally posted by: EeyoreX
I am going to go out on a limb here and say that 300 watts to power that system is more than enough. Unless there are a million-and-one lights, a watercooling setup and you rigged your PSU to power the lights in your office too. I can't even imagine that setup needing 300 watts, much less more than that...

I would start by looking at the possability of bad power from the outlets. If two of them "just quit" after a "while" and this one "fried" that seems more indicative of a larger problem.

\Dan

I don't have anything extra on that power supply.

I also have another computer(which has had no problems) running on the same surge protector with it so I doubt it is the power from the outlet.

Anyway, I am getting a 350 watt power supply at the moment and a different case. Maybe this will take care of whatever it is.

Could it be the standoffs behind the mobo causing it? I have never used standoffs but I had to with this case.

Thanks,
Jeff

 

[Baronz]

Originally posted by: EeyoreX
I am going to go out on a limb here and say that 300 watts to power that system is more than enough. Unless there are a million-and-one lights, a watercooling setup and you rigged your PSU to power the lights in your office too. I can't even imagine that setup needing 300 watts, much less more than that...

I would start by looking at the possability of bad power from the outlets. If two of them "just quit" after a "while" and this one "fried" that seems more indicative of a larger problem.

\Dan

I agree.

I'm running an XP2400@3200 + all the goodies on a cheapo old 300w PSU, and I have an XP1600 on an 8k7a on a 240 watt PSU from an old pentium 2 400mhz.

Check your surge protectors and such...perhaps you have a crazy electrical system?

Definatly not the PSU wattage though.

if something is shorting, the PSU either shuts off immediatly or won't turn on at all, so i doubt it would be something like that.

 

[EeyoreX]

Standoffs should not be the problem. I have standoffs in all the computers I have ever built (they were needed). Generally, however, if there were to be a problem with the standoffs, my experiences has been that the PC would not power on. I can't see how that would damage the PSU. Much less three of them. Maybe something is unusual in your case, but I still can't see that setup needed more than 300 (quality) watts of PSU.

\Dan