Computer Hope

Hardware => Hardware => Topic started by: lars_bu on February 17, 2017, 11:58:47 AM

Title: New PC build starting for 18 sec, then rebooting once, no signal
Post by: lars_bu on February 17, 2017, 11:58:47 AM: Hey guys,

So yesterday I built my first own gaming PC. However it simply won't work. As stated in the title it turns on for ~18sec, reboots, and then stays on giving no signal whatsoever. (I tried the Monitor with my old laptop, works fine)

I already tried breadboarding (right term?), so now I only have the CPU, CPU cooler, power switch, 24pin and 8pin connected to the motherboard on its box. Also tried using a friends PSU because I guessed that's where the problem is coming from, not the case however. Still the same problem.

So now I guess it's the motherboard or the CPU? What to do next? I'm clueless..

Thanks a lot in advance!

EDIT: of course I also have RAM connected to the motherboard. 2 sticks of 8GB RAM in A2 and B2. Already tried switching and only using one stick of RAM.
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: BC_Programmer on February 17, 2017, 12:04:41 PM: Have you tried re-applying Thermal Paste? The symptoms point at CPU thermal shutdown to me.
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: lars_bu on February 17, 2017, 12:10:42 PM: That's one of the few things I actually didn't try. Might as well do that right now. About the size of a piece of rice right? Sorry first pc build as I Said ;D

I already put the processor in a second time and it was fully covered in thermal paste (thin layer tho!). Is that how it should be?
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: patio on February 17, 2017, 12:15:16 PM: I never trust pre-applied...See Here... (http://www.arcticsilver.com/instructions.htm)
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: lars_bu on February 17, 2017, 12:16:32 PM: No no, I applied it myself
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: lars_bu on February 17, 2017, 12:49:50 PM: Re-applied the thermal paste, still no changes.. and I'm sure I did not put too much or too little. Any other ideas?
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: patio on February 17, 2017, 12:50:45 PM: Regardless...whenever the CPU is removed the process should start from fresh...
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: lars_bu on February 17, 2017, 12:53:24 PM: What exactly do you mean by that?
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: patio on February 17, 2017, 12:59:45 PM: You posted while i was typing...ignore last post...
Is it still out of the case ? ?
What make and model is your friends PSU ? ?
Is the RAM on the MBoard QVL list ? ?
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: lars_bu on February 17, 2017, 01:07:18 PM: Still out of the case. Some Corsair 550W. And yes, checked the compatibility.

BTW: i7 7700K
Patriot Viper 8GB PV416G300C6k
Asrock z170 pro4
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: Geek-9pm on February 17, 2017, 01:13:54 PM: What is the full list of all components?
Does this motherboard have a built-in graphics?
Does it have a on-board speaker or noise maker?
What do the keyboard lights show?
What voltages can you measure on the motherboard?
What is the full name and model of the motherboard?
Can you provide a link to the motherboard manual?
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: patio on February 17, 2017, 03:30:27 PM: Some Corsair...that narrows it down....
They are known for 1/2 way decent units...and utter garbage...
Just sayin.

Which PSU did you buy for this build ? ?
Title: Re: New PC build starting for 18 sec, then rebooting once, no signal
Post by: Computer_Commando on February 17, 2017, 06:20:50 PM: Quote from: lars_bu on February 17, 2017, 11:58:47 AM
...now I only have the CPU, CPU cooler, power switch, 24pin and 8pin connected to the motherboard on its box....
So now I guess it's the motherboard or the CPU? What to do next? I'm clueless.....
EDIT: of course I also have RAM connected to the motherboard. 2 sticks of 8GB RAM in A2 and B2. Already tried switching and only using one stick of RAM.
Keyboard attached?