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Random power drops - faulty unit?

post #1 of 16
Thread Starter 
On my sig rig, I have a 700w zalman 80+ pwr supply. For a while it's been whining a bit. You can hear it if you get down with your ear. It's been cleaned with air and has a dust filter, so I'm guessing it's capacitor whine or coil whine. I'm going to guess its about 2 1/2-3 yrs old.

EDIT: looked it up, to check on warranty - power supply was bought 08/09/08 - so just over 4 years old and out of warranty (or course).


That was just annoying.

Now, the machine seems to be turning off by itself, but never when I'm using it. I'll come back to it and it'll be at a log in screen with a system event showing a failure to shut down after a loss of power (or how ever windows states that). Looking back through event logs, it seems to happen about once a day at random intervals and it's been going on for over a week.

Now, nothing else in the house shows a power loss. No clocks doing the 12:00 flash, etc.

So, I'm guessing power supply starting to go? rolleyes.gif

Thoughts?

I think if so, I'll replace with another 700-800w since I'm not running that much in it (and its a small matx case).

Side question, does anyone know of a power supply that using bitfenix or other custom cables plugin strait into the unit (i.e. not as extensions)? I know Corsair has some, but they are mad pricey. And in a small matx case, don't have room to hide the extensions + normal cables. Thanks.
Edited by beldecca - 9/12/12 at 10:52am
post #2 of 16
Anything that fits in an mATX case can run on a 550W power supply. Just sayin'.



Anyway after four years it's not unlikely that this particular unit is starting to go, it was just mid-range.
post #3 of 16
Thread Starter 
Quote:
Originally Posted by Phaedrus2129 View Post

Anything that fits in an mATX case can run on a 550W power supply. Just sayin'.
Anyway after four years it's not unlikely that this particular unit is starting to go, it was just mid-range.

With it's age, that's kinda what I was thinking.

Found this for a good price after rebate - with free shipping (prime) $110 / $95 after rebate
SilverStone ST60F-P - 600W Silver 80+ Bronze PFC Power Supply

http://www.amazon.com/SilverStone-ATX12V-EPS12V-Silver-ST60F-P/dp/B003RRY9RS/ref=sr_1_1?s=electronics&ie=UTF8&qid=1347582324&sr=1-1&keywords=ST60F-P

Can use the short cable kit if I decide to in the future. Might be a help.
Looking at the sig rig I have listed, do people think the Silverstone 600w would be enough?
(i5-2500k, 7950, 3xSSD, 1xHD)
post #4 of 16
Quote:
Originally Posted by beldecca View Post

With it's age, that's kinda what I was thinking.
Found this for a good price after rebate - with free shipping (prime) $110 / $95 after rebate
SilverStone ST60F-P - 600W Silver 80+ Bronze PFC Power Supply
http://www.amazon.com/SilverStone-ATX12V-EPS12V-Silver-ST60F-P/dp/B003RRY9RS/ref=sr_1_1?s=electronics&ie=UTF8&qid=1347582324&sr=1-1&keywords=ST60F-P
Can use the short cable kit if I decide to in the future. Might be a help.
Looking at the sig rig I have listed, do people think the Silverstone 600w would be enough?
(i5-2500k, 7950, 3xSSD, 1xHD)

thats kinda meh these days these are better units for the price

capstone

550

and the seasonic 550

550 seasonic
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post #5 of 16
Thread Starter 
Thanks for the ideas. I noticed both of these are even 50 watts smaller yet than the 600w (and much smaller than my original 750w)

I would prefer a full modular if at all possible - the TJ08-E doesn't leave a lot of room for cables.

By chance, I;d also like to see if I can find it on Amazon / Prime - not ideal, but can be a lot cheaper for over night shipping biggrin.gif.

If I go with newegg, I likely go with the 650w seasonic
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088
(even comes with a free case tongue.gif )
Edited by beldecca - 9/13/12 at 6:39pm
post #6 of 16
Quote:
Originally Posted by beldecca View Post

Thanks for the ideas. I noticed both of these are even 50 watts smaller yet than the 600w (and much smaller than my original 750w)
I would prefer a full modular if at all possible - the TJ08-E doesn't leave a lot of room for cables.
By chance, I;d also like to see if I can find it on Amazon / Prime - not ideal, but can be a lot cheaper for over night shipping biggrin.gif.
If I go with newegg, I likely go with the 650w seasonic
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151088
(even comes with a free case tongue.gif )

they maybe smaller but have more usable power in the 12v rail then the silverstone
Edited by obsidian86 - 9/14/12 at 3:43am
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post #7 of 16
Thread Starter 
Given. 42A vs 45A on the 12v rail. I think I might put a little more into it and get something a bit better / stay full modular.
But I do appreciate the input / ideas. Do you think Seasonic is much better than, say a Corsair AX?

So I'm curious where people think my need is in amps / watts on the 12v rail for the system?
If possible it would help to think of it in min amps & recommended amps. Thanks.
post #8 of 16
Quote:
Originally Posted by beldecca View Post

Given. 42A vs 45A on the 12v rail. I think I might put a little more into it and get something a bit better / stay full modular.
But I do appreciate the input / ideas. Do you think Seasonic is much better than, say a Corsair AX?
So I'm curious where people think my need is in amps / watts on the 12v rail for the system?
If possible it would help to think of it in min amps & recommended amps. Thanks.
corsair ax 650 to 850 is seasonic
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post #9 of 16
Thread Starter 
I'm going to re-bump my thread. I'm wondering if it really is my power supply that is at fault. The machine has never dropped out when I'm running it. Even hard, multiple hour gaming - that should be the times greatest draw. It seems to only happen when I'm away from my machine, so I'm wondering if it has something to do with sleep or hibernation (which both seems to be turned off). It hasn't happened for over 4 days now. But still, looking back in event viewer, I show 15 occurrences of "event ID 41" - loss of power. Any new thoughts or is the idea still along the lines of power supply? Other things I should look into? Thanks again.
post #10 of 16
Re-seat all of the power connectors.
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