PC Starts but no displays/keyboard/mouse dont work

Toggle sidebar Toggle sidebar
T

TechSource

Reputable
Oct 7, 2014
3
0
4,510
Hello, I recently built a PC.

instead of typing everything here is the link to the specs

http://pcpartpicker.com/user/JailBreak/saved/ddZQzy

So the pc runs fine for the most part. Occasionally I would turn the PC on and the displays/keyboard/mouse wont work which forces me to turn off the PC by holding the power button and turning it on again...It always works the 2nd time which is very odd.

Another weird thing I have noticed is that when I unplug the power cord from the PC (to do some wire management) and plug it back in to start the PC, it turns on and immediately after 1 second shuts off again...only to start up again by itself after 2-3 seconds...

Im pretty sure these 2 problems coincide with eachother and I just cand find out what the problem is. Ever since I switched to windows 8.1 its been nothing but headaches...I wished I stayed windows 7.

 
Solution
ronintexas
If you take it down to the basics - you are eliminating to possibility of it being one of the other components. It's like searching for a needle in a haystack - the bigger the haystack, the more difficult it is to find.

If you are down to the basics, and it still fails, I would give a 90% chance it is the PSU. The PSU is easier to replace as compared to the mobo (especially when you have to remove it from the case, remove the CPU, etc....).
Sort by date Sort by votes
ronintexas

ronintexas

Judicious
Dec 10, 2012
5,911
0
32,960
It isn't a Windows 8 thing....this is a voltage and/or wattage problem. Usually it is related to the PSU - but it could be a problem with the mobo. Once the capacitors are fully charged - the problem usually goes away. The only way to test the problem is to replace the components until it doesn't happen again.

I would suggest taking the system down to the basics - Mobo & CPU, 1 stick of RAM, using the onboard graphics and see if you can replicate the problem. If it FAILS - it is either the mobo or the PSU - recommended to replace the PSU. Generally it can take 30 minutes or longer for a capacitor to fully discharge....so this is going to be time consuming....

Add RAM back in and retest.

Add one GPU and retest.

Add the 2nd GPU and retest.

Keep adding parts until all are in and operational. There is no short cuts if you want to find the problem.
 
Upvote 0 Downvote
T

TechSource

Reputable
Oct 7, 2014
3
0
4,510
So ur saying to remove both graphics card and leave only 1 stick of ram and test the PC that way? Then add all the ram back then 1 gpu and the 2nd? What if the problem continues even after removing all those components. How would I know if its the mobo or the PSU?





 
Upvote 0 Downvote
ronintexas

ronintexas

Judicious
Dec 10, 2012
5,911
0
32,960
If you take it down to the basics - you are eliminating to possibility of it being one of the other components. It's like searching for a needle in a haystack - the bigger the haystack, the more difficult it is to find.

If you are down to the basics, and it still fails, I would give a 90% chance it is the PSU. The PSU is easier to replace as compared to the mobo (especially when you have to remove it from the case, remove the CPU, etc....).
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom