Computer Boot Issue

Communities
1

Having an issue with booting a PC.

The computer runs fine all day. But, when you turn it off. You cannot turn it back on again.

The system boots (LED's and fans come on) but the screen does not display anything and the peripherals are not powered (wireless mouse receiver).

Any solutions?

Have booted with no cables except power cable. Have cleared CMOS, booted without ram, etc.
P.S, no beep codes either.

I have no idea.

Thanks in advance.

(Sorry If I posted this is the wrong spot or something. I'm new)

2

If it was the PSU it wouldn't boot at all. If it will not post at all, my guess is your motherboard is dead. Try getting into the BIOS. If you can't, then yeah its the motherboard.

3

PSU and motherboard have been replaced only about 2 weeks ago. Had the same issue back then.

4

Will it post?

5

No. The pc LED's all come on and the fans. But no display output. Have tried different monitor as well, no luck though.

6

Is the gpu unpluged? Like are you running with the onboard graphics?

7

Yes, There is no dedicated gpu. I am running an intel 4160. (HD4400) graphics built in.

8

do you have other display ports and or cables to test if its just a problem with the port you have been using? (Like if the dvi port is dead, you use another dvi and then get a signal)

9

I tested both DVI and VGA, no signal from either.

10

I worked as a staples Easy Tech for 2 years, and in that time if a computer did not post then it was usually something like the ram, or mobo. Seeing as how you just got a replacement mobo, trying using only 1 of your ram sticks at a time, and see if it will boot with either.

11

I have tried this, still no good.

12

Do you have a spare PSU you can try? If it was the stock power supply that comes with a computer these days; they are usually not built to last.

13

Yes. I installed a different PSU, still no boot.

14

dammit

15

We've ruled out almost everything. It makes no sense. Note, peripherals are not getting power. So maybe the mobo was faulty to begin with?

16

Is the cpu dead?

17

I was using the computer about 30 minutes ago, so no. Unless it died when I shut the computer down.

18

There are no beep codes, so probably a mobo issue. Even though it's brand new.

19

Bc it does sound like we have ruled out all the other possibilities. You couldnt even take it to a bestbuy or staples bc they dont handle things that wont even post.

Basically, sometimes that can happen. I remember one time someone brought in a laptop and it booted and then it just died right there.

But it will be either:

  1. mobo
  2. power supply
  3. RAM
  4. cpu (very very unlikely)

Usually in that order. And it could've been damaged in shipping.

To test for power supply, simply jump it and see if it will not shut down immediately.
To test for ram, plug into another computer and run memtest86(will also test cpu).

I'm sorry, but this is the best I can do. Without beep codes, or any sign of post, theres not much else.

20

No worries. Thanks a lot for your help.