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New HomeBuilt computer brakes outlets after use

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Last response: in Systems
February 10, 2011 1:01:50 AM

I finished building my computer roughly 1 month ago, and plugged everything into my electrical outlet adapter. I started it up without problems, but when i put it into sleep mode it shut down without warning, and would not power up again unless I moved it to a different slot on the adapter. It is almost as if I had blown a fuse except just in that one slot. Funnily enough, other appliances still work in the "blown" slots. I noticed that the adapter i was using was slightly old, so I replaced it with a newer one, and this time plugged my computer directly into the wall. Now it works in neither of the two outlets I need it to (haven't tried others), and I am afraid to "blow" more sockets. Anyone know anything about this, or maybe where else I could ask around?

Here's my PSU from Bestbuy:

Thermaltake - 600W TR2 ATX Power Supply
Model: W0388RU | SKU: 9827268

More about : homebuilt computer brakes outlets

February 10, 2011 2:34:21 AM

Hi, I hope I can help, but you will need to troubleshoot this to locate the problem area.
I am an electrician, but whatever you do is at your own risk, I am not an IT pro :) 
It sounds like the problem is isolated to your PC & cord. The wall outlets are hardy, and you would have known if you damaged it, the circuit breaker would have tripped, and/or spark, pop, burn marks and odor. Same goes for the power strip (although they are less hardy by far)

First suspect: Power Cord

The wires in the connected ends are prone to fraying and result in intermittent failures. Unlikely in a month old product, but you never know. If you have an old pc around, swap the cord. Or drop $10 on something like the above.

If you want to rule out any outlet as suspect, buy a Plug tester
This will immediately let you know the status of your outlets.

To test the powercord, you need a Multimeter
Again, at your own risk, detatch the pc cord from the PSU and connect it to a wall outlet. Set the meter to AC 120v, and plug the 2 leads of the multimeter into the 2 "top" L&R holes of your pc cord. If you live in the U.S. you should see 115~125 volts.

If it's not the cord, then you know it is downstream in the PSU, or something in your PC, and hopefully someone else might know of a cause in those areas.

Your power supply has a 5 year warranty parts/labor, so if it's there you're covered at least. Goodluck, hope this helped.


February 10, 2011 2:40:58 AM

Oh, I got so carried away I forgot about the sleep mode comment. If that is a recuring symptom, that may be significant. (I don't know) Perhaps it is not the switching to a new outlet that allows it to power up, but the act of disconnecting from the outlet is resetting something, either hardware or software.
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February 10, 2011 2:54:27 PM

As long as you are using a good plug I don't think it is the outlet I think it is some device not walking up from sleep mode, I would disable devices one at a time till you find the one not responded to the sleep command I have also seen issues with Sleep trying to occure when system is in hibernate so first diable that and work with just sleep.
February 10, 2011 6:26:15 PM

Why does the computer no longer turned on when plugged into that specific outlet then? Also, I happen to have 2 extra power cords for my PSU, which I can't find... and an analog multimeter from an old science project also missing... When I find them, I'll reply again, but other then tha, he sleep problem was reoccurring until I switched from an adapter to a main outlet, since then I have had no problems except this one (about 7 days). And this problem did not happen while the computer was in sleep mode.