Troubleshooting help please.

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Wackystrat989

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Oct 24, 2014
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Long story short:

Turned PC on today after being away for a week. Fans and HD and LEDs all started up but there was no POST sound or display output.

I turned it off for awhile and tried it one last time before I started to start a teardown. Only this time it didn't turn on at all.

Any tips on how I cant test the MOBO and PSU?
I removed peripherals, GPU, WiFi card and one stick of ram, still no power the mobo
I tried the bent PIN test on the PSU and it works (for what that is worth).

Thanks for any advice.
 
Solution
1LiquidPC
Given the info, and no power up anymore, it's going to be either PSU or motherboard. What are system specs? The paperclip test is really only good to see if PSU stays on or if it's totally dead. It can pass this, yet fail to power on the computer when hooked up. Usually between the two, the PSU is much more likely culprit. If you have a DMM you could test output voltages. https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158
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1LiquidPC

1LiquidPC

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Oct 11, 2014
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Given the info, and no power up anymore, it's going to be either PSU or motherboard. What are system specs? The paperclip test is really only good to see if PSU stays on or if it's totally dead. It can pass this, yet fail to power on the computer when hooked up. Usually between the two, the PSU is much more likely culprit. If you have a DMM you could test output voltages. https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158
 
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Solution
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Wackystrat989

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Oct 24, 2014
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Specs are:

i7 6700
ASRock z170 pro4
Palit 1060
8gm HyperX (2x4)
CX750M PSU

I'll check out that link I'm sure I have a multimeter somewhere. Other than checking the voltages, next step would be to try a different PSU?

Thank you for your reply!

 
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Wackystrat989

Reputable
Oct 24, 2014
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Would you mind recommending some decent PSUs?

Just out of curiosity if it still doesn't boot and it is the mobo, how likely would it be that other components are damaged?

Sorry for all the questions!
 
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1LiquidPC

1LiquidPC

Splendid
Oct 11, 2014
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Here is the PSU Tier list for this sitehttp://www.tomshardware.com/forum/id-2547993/psu-tier-list.html Personally, I've been happy with Corsair's high-end units, EVGA, Seasonic, and a SilverStone(one in an HTPC I have).

Hard to be sure, but I'd say unlikely other parts are damaged. I've seen both power supplies and boards fail in systems, but in my experience they didn't take other parts with them.

 
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geofelt

geofelt

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Oct 9, 2006
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The psu paper clip test can confirm a totally dead psu, but it says nothing about the proper working of the psu.
Cheap $10 testers are better, but still can not test the proper working pf a psu.

While your problem could be the motherboard, it is easies to assume a psu failure and test for that.

Borrow a known good psu to test with.
If you have no source then buy a good replacement from a source with a good return/restocking policy.
Expect to pay 15% .

As replacements, I really like the new Seasonic focus line.
Gold rated, modular, compact, long warranty, and highly rated by jonnyguru.
450w is fine for a GTX1060, but I would buy the 550 or 650w versions in anticipation of a future graphics card upgrade.
The 550w unit can run a GTX1080. for a GTX1080ti, you might want the 650w version.
They are on sale at newegg; $55 after rebate for the 550w unit:
https://www.newegg.com/Product/Product.aspx?item=N82E16817151189
 
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