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Helpful ReplyHot!Power problems after unplugging PC

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Locutus494
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2018/07/09 13:43:47 (permalink)
I went on vacation this last week and unplugged my computer to protect it from surges, save power, etc. When I returned home and tried to use it today, it will not power up correctly. All I did was shut off the switch on the PSU and unplug the power strip it's plugged into from the wall (I didn't open it up or move it at all), and it sat unplugged for six days. When I plugged it back in and turned on the PSU, the lights on the motherboard just flash fast and cut out constantly, not the steady cycle they usually do when the computer is plugged in but powered off. Nothing happens when the power or reset buttons are pressed. Everything else plugged into the same outlet/power strip works fine, I have moved the computer to a different outlet on a completely different circuit in the house, and tried powering it up with all the peripherals disconnected, but no change. I hope I don't have a PSU problem! Any help anyone can give is much appreciated! My build is in my signature, and here's a link to a video of what's happening: https://youtu.be/b0x_qfwwqo8

PS: Sorry if this is the wrong subforum, but seeing as I'm not sure what's happening, I'm not sure where to put it. Maybe not even an EVGA hardware problem, but I don't know where else to ask.

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Sajin
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Re: Power problems after unplugging PC 2018/07/09 13:51:36 (permalink)
Wouldn't hurt to try a different psu.


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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 13:53:35 (permalink)
I don't have another.

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Sajin
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Re: Power problems after unplugging PC 2018/07/09 13:58:25 (permalink)
Guess it's time to buy one for testing.


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bdary
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Re: Power problems after unplugging PC 2018/07/09 14:15:04 (permalink) ☄ Helpfulby Locutus494 2018/07/26 12:39:49
You could do the paperclip test just to see if you have any life from your PSU as a starting point > https://www.evga.com/support/faq/afmviewfaq.aspx?faqid=59582
 


 

 
 
 
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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 14:25:25 (permalink)
Passes the paperclip test; the PSU, fans, GPUs, and everything else connected to the PSU comes on when I jumper it.

Digital Storm Hailstorm (Corsair 800D), EVGA X58 Classified 3, Intel Core i7 Extreme Edition 990X 3.46GHz Six-Core, 24GB Kingston HyperX T1 1600MHz DDR3, 2x EVGA GTX 780 Dual Classified Hydro Copper, 30" Dell U3011 2560x1600, 2x 600GB Intel 320 SSD RAID 0 (OS), 2x 2TB Western Digital Black Edition 7200 RPM 64MB Cache RAID 0 (data), Sound Blaster X-Fi Titanium Fatal1ty Champion, Corsair HX1200 PSU, Windows 10 Pro 64-bit.
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bdary
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Re: Power problems after unplugging PC 2018/07/09 14:30:33 (permalink)
Have you tried powering up using the power button on the board instead of the case?


 

 
 
 
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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 14:33:58 (permalink)
Yes I have; no difference. To be clear, the problem is as soon as I flip the switch on the PSU; the light on the chipset cooler and other indicators is clearly starting to come on, and then abruptly cutting out. That's not how the EVGA Classified 3 should behave when supplied with power but turned off.

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Sajin
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Re: Power problems after unplugging PC 2018/07/09 14:35:19 (permalink)
How do your voltages look while jumpered?


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bdary
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Re: Power problems after unplugging PC 2018/07/09 14:39:01 (permalink)
I had this exact same thing happen to me a couple weeks back.  Turned out my motherboard (X99 Classy) was dead.  One day it was running fine, the next day, nothing.  I jumped the PSU as you did, all looked good there.  Dead board.
 
The only signs of life my board showed was a faint flickering power light, but nothing would power up.
 
Not saying for sure this is your issue, but sure has very similar signs.
 


 

 
 
 
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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 14:40:35 (permalink)
Sajin
How do your voltages look while jumpered?


How do I go about doing that? I have an EVGA Bot and 24 pin voltage jumper, but they're both in storage with most of my belongings in another state. I never learned to use them either. I think I can find a multimeter around the house. What pins do I need to read?



Digital Storm Hailstorm (Corsair 800D), EVGA X58 Classified 3, Intel Core i7 Extreme Edition 990X 3.46GHz Six-Core, 24GB Kingston HyperX T1 1600MHz DDR3, 2x EVGA GTX 780 Dual Classified Hydro Copper, 30" Dell U3011 2560x1600, 2x 600GB Intel 320 SSD RAID 0 (OS), 2x 2TB Western Digital Black Edition 7200 RPM 64MB Cache RAID 0 (data), Sound Blaster X-Fi Titanium Fatal1ty Champion, Corsair HX1200 PSU, Windows 10 Pro 64-bit.
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bdary
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Re: Power problems after unplugging PC 2018/07/09 14:44:18 (permalink) ☄ Helpfulby Locutus494 2018/07/26 12:40:21


 

 
 
 
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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 14:46:47 (permalink)
FYI, here's a link to a video showing what the lights should look like: https://www.youtube.com/watch?v=T1P1zkZmZpc. Compared to the video I posted.
 

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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 14:48:23 (permalink)
bdary
https://en.wikipedia.org/wiki/ATX#Power_supply
  This may help...


So I should get the stated voltages when shooting between that pin and a ground, correct? And this is all DC, right?



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bdary
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Re: Power problems after unplugging PC 2018/07/09 15:03:46 (permalink)
Locutus494
bdary
https://en.wikipedia.org/wiki/ATX#Power_supply
  This may help...


So I should get the stated voltages when shooting between that pin and a ground, correct? And this is all DC, right?




1st question, correct.


2nd question, I'm not techincal enough to know all the ins & outs of how the AC to DC converting works.


 

 
 
 
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Sajin
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Re: Power problems after unplugging PC 2018/07/09 15:13:11 (permalink)
Locutus494
And this is all DC, right?

Yep.


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Locutus494
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Re: Power problems after unplugging PC 2018/07/09 15:38:34 (permalink)
All voltages on the 24-pin connector shoot good. Next, I'm thinking I should disconnect everything form the motherboard and try to power it up as you'd do the first time with a new build...

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Sajin
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Re: Power problems after unplugging PC 2018/07/09 17:10:48 (permalink)
Glad to hear they are all within atx specification.


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Re: Power problems after unplugging PC 2018/07/09 20:59:15 (permalink)
i had this happen once before, turned out to be the cmos battery, since your running a classy 3, x58 i assume, that battery might be quite old and can lose power when the psu is turned off, should be a 2016 or 2025  which are pretty cheap. 

                               
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Locutus494
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Re: Power problems after unplugging PC 2018/07/11 20:40:22 (permalink)
Well I replaced the CMOS battery; that wasn’t it. No change, and the old battery had a full charge. 😢 I’m taking the whole thing apart and going to try some stripped down configs out of the case. It BADLY needs cleaning and the cooling loops flushed anyway...
 
I hope I don’t have a bad motherboard; I really can’t afford to replace anything right now.
post edited by Locutus494 - 2018/07/21 17:32:27

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Re: Power problems after unplugging PC 2018/07/12 06:50:41 (permalink)
Hopefully you'll have better luck than I did...(post #10)


 

 
 
 
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Locutus494
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Re: Power problems after unplugging PC 2018/07/18 13:22:41 (permalink)
So to update this; I see now it's the blue standby that's flashing near the RAM slots. It should be on solid when the system is powered but off. Could the flashing mean that it's trying to turn on and off constantly?

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Re: Power problems after unplugging PC 2018/07/18 13:28:26 (permalink)
That would be difficult to say without further diagnosis. I would recommend removing any non-essential components and going to a single stick of RAM and clearing the CMOS a few times or more. Keep in mind that if you have a RAID setup, you may not want to do this, as you can ruin the array and the data may be irretrievable.
 
I have personally had boards that give no power out of the box, but removing components and clearing CMOS allowed it to POST and after that happened, I was able to reinstall the other components and get it working fine. My go to is always to remove the graphics card and all but one RAM stick, then clearing CMOS.
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Locutus494
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Re: Power problems after unplugging PC 2018/07/18 13:56:43 (permalink)
How exactly do I clear the CMOS? I've already replaced the battery, and I've read conflicting guides that say to just press the reset button, unplug the system and remove the CMOS battery then reset the button, and all kinds of other variations of that.

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EVGATech_DavidR
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Re: Power problems after unplugging PC 2018/07/18 14:08:53 (permalink)
Some boards will have a CLR button or a CMOS Reset button. Those should be held for about 5 seconds to clear the CMOS settings. If the board does not have this, you can remove the battery and unplug the power supply from the electrical outlet, then press the case power button, or onboard power button about 5 or 6 times, to clear any stored power and reset the CMOS.
post edited by EVGATech_DavidR - 2018/07/18 14:10:58
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Re: Power problems after unplugging PC 2018/07/18 14:16:16 (permalink)
Locutus494
How exactly do I clear the CMOS? 




Totally clearing CMOS is decribed here in the EVGA FAQs using the second method.
 
Turn off/unplug the PSU..Remove the CMOS battery..Wait..Put the CMOS battery back in..Plug in/turn on the PSU.
 
Then you'll need to make Date & Time (do that first) and other needed BIOS changes such as First Boot Device, Memory Frequency/Timing/Voltage, etc..All BIOS settings will be returned to default factory settings after you do that.

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Locutus494
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Re: Power problems after unplugging PC 2018/07/18 14:20:14 (permalink)
Still no dice. It's like the board's not even powering up right.

If it comes to it; is it still possible to get an RMA replacement for an X58 board? I don't have the funds to change to another CPU socket right now.

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Sajin
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Re: Power problems after unplugging PC 2018/07/18 14:47:03 (permalink)
Locutus494
is it still possible to get an RMA replacement for an X58 board?

Depends on what evga has in stock for rma purposes.


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Re: Power problems after unplugging PC 2018/07/18 15:03:09 (permalink)
Locutus494
If it comes to it; is it still possible to get an RMA replacement for an X58 board? I don't have the funds to change to another CPU socket right now.

 
This would be entirely dependent upon what is in stock at the time of replacement. That board is very old at this point and direct replacement may not be available, but there's always the possibility that we would get one in stock from a repair, etc. We would not be able to determine this until an RMA was in process, unfortunately. If it comes down to an issue with the board itself, feel free to contact our team at 888-881-3842 or Support@EVGA.com
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Locutus494
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Re: Power problems after unplugging PC 2018/07/21 18:02:52 (permalink)
Well, I think I found the problem. I finally noticed a microchip that is missing off the board! Right next to SATA ports 0/1, the microchip labelled "Q77" is missing. Looks like the solder points just gave up. I've looked all over in my room, but I can't find the chip. Here's the links to pictures, since the picture upload feature on this site doesn't accept anything over 500 KB and is thus useless:
https://drive.google.com/open?id=1mJ-Nc-OZu6zHvj3MjjnUHa2_bfbDiXOH
https://drive.google.com/open?id=1hXOmLzuaURzxdHlk9aFy3uxoRumfNar4

Is this something that EVGA can repair if I RMA them my board? I can't imagine why it just suddenly fell off; I didn't move or change anything on my computer.

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