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PC doesn't boot up first time, CPU LED stays on. Second/third time booting up it all works fine.

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August 20, 2013 4:44:36 AM

I have an issue with a new PC that I've had custom built.

Specs are:
Asus x87-a motherboard
4670k CPU + Corsair h80i cooler
GTX 770 GPU
8gb RAM
Corsair 850TX PSU

When I turn the PC on first thing in the morning, power comes on, fans spin up, and then it just stops, I never get a display. At this point THE CPU LED on the motherboard is lit and stays lit.

If I then power off the computer and turn it back on, it boots up normally and there are no further issues. Occasionally it won't boot up correctly until the second time I turn it off/on, and again, there are no further issues.

If I shut down the computer and turn it back on again, there is no issue booting back up first time.
If I shut down the computer and leave it off for 45 minutes there are also no problems booting it back up first time.
So far the problem only occurs when I leave it off overnight and then turn it on in the morning.

I have no idea what the difference is between turning off for 45 minutes and turning it off all night.

I have been through this thread:
http://www.tomshardware.co.uk/forum/261145-31-perform-s...
But most of it doesn't seem to apply to me, since everything works fine aside from that first boot in the morning. (I checked it all anyway though).

In any case, the fact that it works fine after that first boot suggests that my problem may not be so serious. I just need to figure out what the problem is.

Can anyone help?


EDIT -
Just to clarify, the CPU LED is lit only during the first failed boot. Everything behaves normally once I've rebooted it, ie CPU LED only flashes on briefly before continuing a normal boot process.

Best solution

August 20, 2013 5:13:14 AM

joea9 said:
I have an issue with a new PC that I've had custom built.

Specs are:
Asus x87-a motherboard
4670k CPU + Corsair h80i cooler
GTX 770 GPU
8gb RAM
Corsair 850TX PSU

When I turn the PC on first thing in the morning, power comes on, fans spin up, and then it just stops, I never get a display. At this point THE CPU LED on the motherboard is lit and stays lit.

If I then power off the computer and turn it back on, it boots up normally and there are no further issues. Occasionally it won't boot up correctly until the second time I turn it off/on, and again, there are no further issues.

If I shut down the computer and turn it back on again, there is no issue booting back up first time.
If I shut down the computer and leave it off for 45 minutes there are also no problems booting it back up first time.
So far the problem only occurs when I leave it off overnight and then turn it on in the morning.

I have no idea what the difference is between turning off for 45 minutes and turning it off all night.

I have been through this thread:
http://www.tomshardware.co.uk/forum/261145-31-perform-s...
But most of it doesn't seem to apply to me, since everything works fine aside from that first boot in the morning. (I checked it all anyway though).

In any case, the fact that it works fine after that first boot suggests that my problem may not be so serious. I just need to figure out what the problem is.

Can anyone help?

It could be the motherboard is not always getting the correct power good signal from the PSU, when you power on the PSU sends a signal to the board to say everything is at spec, voltages etc, if the signal received by the board is not correct then the board constantly resets the CPU to prevent any possibilty of damage to components. If possible try a different power supply to check. I guess you are going to say the PSU is new but that doesn't mean anything it can still be faulty.

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August 20, 2013 7:08:25 AM

The restarting is probably caused by the choice of memory used and the BIOS memory settings that are used. It wouldn't necessarily mean anything is wrong.
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September 23, 2013 5:53:33 PM

Wow, I have almost the same setup and am having exactly the same problem.

LG Blu-ray Burner
1.4GB Seagate Drive
ASUS GRYPHON Z87
Intel i5-4440
8G Single 1600 Kingston RAM
Windows 7
Corsair CX430 V3

An ASUS/Intel/Corsair combination and same problem? Can't be a coincidence! Would LOVE to know what the solution was for you.
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January 2, 2014 6:48:49 AM

I hope you found your solution, because i am too also receiving the same issues. Almost identical issues to the TEE!!!!!
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January 3, 2014 10:47:20 AM

Hi Joea9, I have exactly the same problem.

This is my thread: http://www.tomshardware.co.uk/answers/id-1919261/dvi-si...

I didnt get any response, so I just thought wth, I'm going back to the store and command a new one. I got a new GA-z87x-UD4H motherboard, but it did the same thing. My PC just didn't boot right. So, okay, another thought: let me just buy a new MoBo. So I bought the Asus x87-Pro board. And I still have the same problem.

I'm confident it is NOT about your motherboard. It has to be something else. What we all have in common here, is the intell proc and possibly the Ram (I use some old 1600 kingston ram, 6gb).

Have you gotten any further yet?
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April 1, 2014 7:04:19 AM

Hey,
I have the exact same problem but the only thing we have in common is the ASUS MB

SPEC:
MB: ASUS P8Z77-V DELUXE latest bios (2104)
MEMORY: G.SKILL Ripjaws X Series 16GB (2 x 8GB) I have a total of 32GB (4 modules) (F3-14900CL10D-16GBXL 10-11-10-30-2N)
PSU: Cooler Master Silent Pro Gold 1200W
GPU: 2XGTX 780Ti SLI
CPU: stock

Now here is what happens:
If I turn the computer on in the morning (7 to 8 hrs after the last shut-down) the computer turns on for 1-2 sec, fans and lights on the MB turn on and the computer then shuts down.
If I press the power bottom immediately it wont turn on.

Here I only have 2 options:
1- I have to wait and press the power after 10 to 20 sec and it turns on and boots normally
2- I have to unplug the power cord wait for a couple of sec and then turn on and boots normally.

Once the computer boots up i can normally shut down and power up without the issue. The problem happens only at cold boot; if the computer is off for 30 to 1hr i can normally power on. I kind of find this pretty bizarre if there is a problem with any PSU or CPU.

At the beginning I thought it might be the problem with my memory:
tested the ram with memtest86 one by one and no problem.
Went back to the stock frequency for both ram and CPU (No overclocking) same thing happens.

Cleared the cmos and same thing happens.

At this point its either my MB or PSU or a setting in the BIOS which i cant figure out.

Some people say that this is normal but heck its annoying to me.
Just wanted to see if anyone has solved the issue.

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April 5, 2014 10:34:32 AM

I've got the same problem. The first time I turn the computer on in the morning, all the lights turn on and all the fans turn on but the video never displays. If I turn it off and then turn it back on, everything is fine. It brings up the Windows didn't start right screen and asks me how I want to start windows (safe mode, normal mode, etc.) I used to have the problem a while back and I replaced the power supply. It has recently started again.

Specs are:
Gigabyte Z77X-D3H
Corsair (4x4GB) CML16GX3M4A1600C9
Intel i7-3770K
Windows 7 Ultimate
Kingston ssdnow300v 240GB
Corsair CS650M 650W PSU
Zalman CNPS10X cpu cooler
XFX Radeon 7870

I have fixed computers for over 10 years, but can't seem to fix my own problem. I recently updated all of the drivers to fix my first BSOD ever in Windows 7. That didn't help this problem though. Only thing I can think of that I didn't update is the BIOS. I didn't want to flash that until the one on the gigabyte website is not in beta status anymore.



Edit: As this appears to be a graphics issue, knowing that I have 2 monitors attached might be helpful. I have an Asus VH238 attached by HDMI, and a Dell 19" 0PVGRC attached by DVI.
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