Question Did my CPU die?

[amishsixstringer]

Hey everyone, I've lurked this forum for awhile, but this is my first post. Unfortunately it isn't a happy one.

I use a computer I built for record production in a pretty busy studio. Last night the computer shut off without notice and would not restart. When I push the power on button it will start moving fans, the lite drive starts to buzz, and about a half second later it shuts right off again. The computer is about 8 months old and is built with all new parts besides the PSU and the case, which around 6 years old.

Here is the system:
Asus X99-e
i7-6800k
32GB Corsair Vengeance
Noctua NH-U12s
Corsair 650W PSU
Samsung SSD
4 Seagate Barracudas
Windows 10

The mobo flashes '14' for a just a moment right before the power cuts back off. The definition of q code 14 is "Pre-Memory CPU initialization is started".

I did the following already:
Replaced the CMOS battery.
Took each stick of ram (there are 4) out one at a time.
Unplugged all the hard drives in the computer.

I have not tried to reseat the CPU yet, but I'm thinking this is next. Also, I could try to see if the case fans will at least stay running with the cpu out.

My hope is the PSU died, but doesn't seem likely yet. I may be able to borrow a PSU from a friend to count that out if you all think it is worth while.

I'm pretty desperate as this computer is the center of how I make my living. Thank you so much for any help. I'm happy to give more info if I missed something.

Neil

 

[AllanGH]

My hope is the PSU died, but doesn't seem likely yet.

If that Corsair is a "VS" series, it's a virtual certainty.

Never re-use a PSU that is over 2 or 3 years-old, unless it's a premium unit in the maker's product line-up; and, only then if it has more than 25% of its warranty period left.

 

[amishsixstringer]

If that Corsair is a "VS" series, it's a virtual certainty.

Thanks for the reply. I believe the series is "LPX". Here is a link: https://www.newegg.com/corsair-32gb-288-pin-ddr4-sdram/p/N82E16820233712?Item=N82E16820233712

 

[AllanGH]

I actually meant the power supply, not the memory.

 

[amishsixstringer]

I actually meant the power supply, not the memory.

Ah that would make more sense. Ha. It seems the PSU is the "RM" series. I originally purchased in 2014. It has run in a computer for an average of 8 hours a day since.

https://www.newegg.com/corsair-rm-series-rm650-650w/p/N82E16817139054?Item=N82E16817139054

 

[AllanGH]

Despite it being one of Corsair's better units, at 6 years-in, the PSU remains your most likely point of failure. Definitely test with a known-good unit to confirm or disprove that possibility.

 

[amishsixstringer]

Despite it being one of Corsair's better units, at 6 years-in, the PSU remains your most likely point of failure. Definitely test with a known-good unit to confirm or disprove that possibility.

Thanks for your help. I'll start there. I hope it is the problem actually. Much easier/cheaper fix. Is there any other trouble shooting I could do with this unit while I search out a doner? I have a friend with a known working 500Watt supply, but it needs to be pulled from his backup system.

Neil

 

[AllanGH]

If you have a multimeter, the first, best action to take would be to test the PSU outputs to the motherboard connectors...12V, 5V, 3.3V, -12V, 5VSB. Any of those that are lacking indicates an issue with the PSU.

View: https://www.youtube.com/watch?v=Tr70VyoACPg


As to it being cheaper to fix....hopefully it is, but PSUs have a bit of a habit of taking-out other system components when they die, and I hope that is not the case here.

 

[lynx1021]

The best test of a PSU is to try a known good one!

 

[amishsixstringer]

If you have a multimeter, the first, best action to take would be to test the PSU outputs to the motherboard connectors...12V, 5V, 3.3V, -12V, 5VSB. Any of those that are lacking indicates an issue with the PSU.

I tested the PSU with a multimeter as per the video you shared and all voltages are within tolerance.

I still haven't found a doner PSU to try.

Should I still do that, even though the PSU runs with the paper clip jumper and correct voltages found?

What is the next logical step?

Neil

 

[amishsixstringer]

I reseated the CPU. Nothing looks burnt. No bent pins. Now when I try to turn on it shuts right off and no longer flashes the "14" on the q code. It then tries to turn itself on and shuts off at a frequency of about once per second about 10 times before giving up.

 

[TechyInAZ]

Is your motherboard on the latest BIOS??

I definitely agree that it could still be the PSU, whenever possible try a newer unit. Preferably a good unit from Seasonic

 

[amishsixstringer]

Is your motherboard on the latest BIOS??

I definitely agree that it could still be the PSU, whenever possible try a newer unit. Preferably a good unit from Seasonic

I've been trying to run one down all day. It's pertty hard to find anyone who actually stocks computer parts that don't need shipped.

Neil

 

[amishsixstringer]

Just so you guys know, the X99 Bricked. Thanks for your help.

Neil

 

[AllanGH]

It bricked itself, or is it a matter of it fried itself?

I would imagine that you're looking at a warranty replacement, at any rate, given its age. Uhm....hopefully?