Cpu died, had burnt smell, and won't turn back on

July 21, 2016 at 22:03:58
Specs: Linux
Burning smell &cpu died and won't turn back on.
Specs
INTEL I7-4930K 3.4 GHZ 12M LGA201L
2TB SATA III 6GB/S 7200RPM 64MB CACHE 3.5" HD
ADATA XPG V2 4GB DDR3 1866MHZ (16 GB RAM total)
CORSAIR HYDRO SERIES H60 120MM LIQUID COOLING
CASE FAN 120 MM
WHITE CFI BOREALIGHT FULL TOWER CASE NO POWER
BLACK LG UH12LS29 12X BLU-RAY PLAYER & DVDRW
GIGABYTE X79-UP4 QUAD CROSSFIRE/ QUAD SLI SATA 3.0 US
*** 800 WATT 80 PLUS POWER SUPPLY
*** NVIDIA GTX 780 3GB GDDR5 PCI-3

*** indicates what I think the problem might be

Not Linux either...

message edited by Clueless79


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#1
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#2
July 21, 2016 at 22:48:31
Clueless79,

Had Burnt smell

Remove all the power connections from the CPU Box. Please go through the motherboard, RAM slots, Graphic card and even processor (If you good at removing and replacing it) and Power supply Unit, so that we can come into conclusion which part got damage. From when you got this Burnt smell issue? Did you have power surge at your place? or overheating issues?


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#3
July 21, 2016 at 22:49:15
" NVIDIA GTX 780 3GB GDDR5 PCI-3 "
Remove the card & test using the onboard video.

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#4
July 22, 2016 at 12:21:04
'CPU' is your processor (your Intel inside)
Your burnt smell is more likely the motherboard than your CPU but even more likely your power supply. I see you did not list your make and model on the power supply, this makes me more suspicious of it.
Open the case, let it air out for a while and see if you can identify where the smell is coming from. Using a strong light, examine everything in detail (do not open the power supply), burnt, burst, browning, leaking components are the thing you are looking for, especially on the motherboard and graphics card. If the smell is clearly from the power supply, simply replace it. If any component has any visible signs as above, replace the entire board.
Now is also the time to tell us if you had overclocked either the CPU or graphics card (or even the memory). While overclocking will not directly burn out the CPU in general, overvolting it definitely can so list your overclock and voltages.

You have to be a little bit crazy to keep you from going insane.


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#5
July 22, 2016 at 14:10:21
Problem here is that it won't start up at all. Only upon unplugging and re plugging it into the wall then turning it on does it flash blue (the color of the light when it's running), then immediately shut off. And it'll only flash on/off upon re plugging it to the wall and back out.

I also took out my video card and it looks in not the best shape, but then again it came damaged...was a 3 month fiasco with the company. And the power supply is outputting no volts when plugged into the wall. As such it's probably the power supply. However I'm going to replace th3 graphics card either way. Any recommendations on a) what to do next and b) what graphics card & power supply I should get?

message edited by Clueless79


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#6
July 22, 2016 at 19:41:47
Please post the make/model of the PSU. You managed to do it for all the other components. I think I smell a crappy CyberPowerPC, lol

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#7
July 23, 2016 at 12:39:33
I agree it never came with a make model. I just bought a 850 Watt corsair psu, 32 more GB RAM ddr3, and a ssd 480gb. I'll be purchasing a 1080x Nvidia card tonight so hopefully that'll fix everything... I've been meaning to upgrade anyways this is an excuse I suppose. But we believe the graphics card. Is the source problem. That being said any recommendations on anything goes better instead of the 850 watt corsair psu or the 1080 GTX nvidia graphics card?

message edited by Clueless79


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#8
July 23, 2016 at 15:23:16
The GTX 1080 is very power efficient at around 150-200watts if I'm not mistaken, and even a 650watt psu would be quite overkill. i'm pretty sure you'll be fine with that 850watt one.

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#9
July 23, 2016 at 18:00:48
"And the power supply is outputting no volts when plugged into the wall. As such it's probably the power supply."

Not necessarily by any means. Many P/S units don't put out anything until they see a load on them. Follow Fingers' advice above and inspect the unit closely before replacing anything. You may further damage the system by just replacing components without being certain.

"Channeling the spirit of jboy..."


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#10
July 23, 2016 at 19:36:35
To test a PSU without having it connected to the motherboard, you will have to hot wire the 24-pin main ATX plug using a U-shaped wire. Put one end into the green wire & the other end into any black wire. Plug in the PSU & turn it on. If the fan spins up, the PSU might be OK. You can use a multimeter to check the voltages of the various voltage rails to see if they're within tolerance, but it's next to impossible to check amperage without the proper testing equipment.

"it never came with a make model"

All you have to do is open the case & look at the label. So, is your system a CyberPowerPC or not?


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#11
July 23, 2016 at 20:49:10
If you do end up replacing the power supply because it proved bad (or even because it is a piece of junk), the Corsair models are good ones and the 850 should be able to handle two of most graphics cards out there today. The GTX 1080x should be a strong gaming card going just by the numbering system NVidia has been using and should be a good choice if it is within your price range.
That said, It is still advisable to find the problem component so you are not wasting time and money and not taking the chance that another bad item could have caused at least some of the problem. As an example, a bad short on the motherboard or even a loose screw that slipped under the motherboard could have caused damage to the motherboard and power supply or a short on/at the graphics card could have damaged the motherboard and power supply.

You have to be a little bit crazy to keep you from going insane.


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#12
July 23, 2016 at 21:08:01
Soc first of all, thanks for the help this far. I've been working a lot this weekend but I intend to resolve everything tomorrow night. The reason I believe the graphics card is the problem is because it has the burnt smell. The psu also looks like a cap is blown, but it's hard to tell without fully taking Ithe apart which I'll do tomorrow night.my processor and cooling unit appear to be fine. We did think about the motherboard, but because my cpu won't start up period without a graphics card I'm kind of stuck. So if we plug the graphics card in tomorrow and it works then the 0roblem should be fixed, IF it still doesn't run then it's probably the motherboard. I'll draw up some diagnostics once I boot everything up too. I'll also update everything tomorrow regardless of how everything turns out.
Cheers

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#13
July 24, 2016 at 04:33:27
It looks more to me your MB is dead. The PSU will not be allowed to stay unless the standby power circuit on the MB gives an all clear meaning all modules on the MB receive power correctly.

The VDU could be the culprit but without the VDU inserted, MB should start up if it is in good condition, perhaps with beeps indicating the absence of the a VDU.


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#14
July 24, 2016 at 20:27:51
I advise against taking the power supply apart because there could be residual power stored in some of the capacitors which could be dangerous.

You have to be a little bit crazy to keep you from going insane.


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