PC needs warmed up before Boot?

[FrankDaTank]

Hey guys, I have a very strange issue on my hands. I really hope it can be solved as it is doing my head in. Here goes:

So I have a PC, seen in sig, with a few other alterations of late, one being 12GB RAM total and R9 280 3GB.

The issue is that say I come home from work, and turn on my PC. It will not post or do anything except have the fans spin up etc. No beeps. If I try and restart the PC straight away or after a few minutes - nothing, same result.

What is strange is that if I leave the PC for longer than roughly (haven't determined an exact time) 10/12 minutes, hold power button down to turn off, then press the power button, it will turn back on, and boom we have lift off. It does take an extra minute or so to boot, but at least it will always boot. When it is on, it will stay on with no issues, even doing some hardcore gaming doesn't cause any other problems. Room can be cold, but I though hardware thrived in colder conditions.

Does anyone know what the issue could be? There has been a recent issue where it would not boot at all, until I reseated everything and removed CMOS overnight. Also had a small OC of 3.4-3.6gHz for processor, but not since issue first occurred. That got me to where I am now.

I have been troubleshooting for weeks and no resolve. What I have tried is:
Reseat everything, tried with 1,2,3,4 sticks of RAM in various Slots and combinations, tried another GPU, good ole clean out of dust etc. I have not been able to test PSU, but saying that when its on its fine I have sort of ruled it out (should I?).

I am sorry for the long read but any input would be appreciated, suggestions and questions welcome.

 

[Vesper]

Sounds like the power supply is struggling to power on the system efficiently, maybe it's gone faulty?

Do you by any chance have a spare PSU sitting around that you can try out ?

 

[ChocolateStarfishRammer]

Although I use to have a very similar issue, that my pc needed to warm for 30 secs before I turnt it off and back on again to a sucessful boot.. I always knew it wasnt actually a 'warming' issue.

It's likely something to do with power/clock.

Cut it down to basics.. unplug every HDD, Extra fans/LED's/Spinning Rims etc, and unplug all usb devices etc. Just the basic MB/CPU/RAM combo, reset BIOS to stock and see what happens.

If that works, then you can build back up from there.

 

[FrankDaTank]

Although I use to have a very similar issue, that my pc needed to warm for 30 secs before I turnt it off and back on again to a sucessful boot.. I always knew it wasnt actually a 'warming' issue.

It's likely something to do with power/clock.

Cut it down to basics.. unplug every HDD, Extra fans/LED's/Spinning Rims etc, and unplug all usb devices etc. Just the basic MB/CPU/RAM combo, reset BIOS to stock and see what happens.

If that works, then you can build back up from there.

Firstly I don't have a s[are PSU to try unfortunately. I am trying to get my hands n one for the weekend to test.

I am sure it is not a warming issue either, but I have tried what you have said with the bare minimum and it is still doing the same thing! It is driving me up the wall. I just can't understand why it will actually start after 10 minutes, but not straight away, ever. The PSU is 4 years old so it may well be that. Any other ideas other than a PSU issue?

 

[snips86x]

Do you have any external storage drives connected? Mine won't boot with a card reader or USB storage device connected to the front IO panel.

 

[FrankDaTank]

Do you have any external storage drives connected? Mine won't boot with a card reader or USB storage device connected to the front IO panel.

I do tend to have a Wireless keyboard dongle in all the time, but have tested without. No external HDD's connected either. I read somewhere that a Surge Protector (which I have recently added to the setup) can cause issues. Will try that when I get home.

Also seen info about power jumper on MOBO headers not connected properly which I will try too.

Would RAM running at different speeds cause much issues. I have 4GB OCZ older memory and newer 8GB GSKILL.

 

[ChocolateStarfishRammer]

I do tend to have a Wireless keyboard dongle in all the time, but have tested without. No external HDD's connected either. I read somewhere that a Surge Protector (which I have recently added to the setup) can cause issues. Will try that when I get home.

Also seen info about power jumper on MOBO headers not connected properly which I will try too.

Would RAM running at different speeds cause much issues. I have 4GB OCZ older memory and newer 8GB GSKILL.

Yeah again.. cut right down to basics and eliminate every possibility.

Plug PC straight into the wall.
Unplug all unnecessary equipment to post. (this includes keyboards and mice)
Cut down to just 1 stick of Ram - then change it with another to test.

 

[westom]

I am sure it is not a warming issue either, but I have tried what you have said with the bare minimum and it is still doing the same thing! It is driving me up the wall.

A power controller determines when a computer powers on, powers off, and even if its CPU is permitted to execute. Without inputs and outputs to that power controller, then all replies can only be wild speculation. Viewing those inputs and outputs requires requested instructions for one full minute of labor, a digital meter, and an informed reply from those posted numbers. Labor is so layman simple that even a 13 year old can do it. But without those hard facts (numbers), then nobody can post anything but speculation.

Removing parts can even mean the meter will not see the anomaly. To see the reason for failure means removing or disconnecting nothing.

 

[Uncle Petey]

I have a similar issue with my Z77V Premium mobo, only it'll take a minute or so to get going, but will happily reboot as normal when it's up and and running.

No idea what causes it and the psu is definitely not the problem here. I'm willing to bet that it's your mobo and if you can, RMA it.

 

[varkanoid]

I do tend to have a Wireless keyboard dongle in all the time, but have tested without. No external HDD's connected either. I read somewhere that a Surge Protector (which I have recently added to the setup) can cause issues. Will try that when I get home.

Simple question is did the problem occur before the surge protector was used?
Should have your answer there.

Always look at whats changed recently.

 

[happy_2008]

How cold is cold? Only reason i ask is that i left my mobile in the car once for a few hours at night and when i tried to use it afterwards it was really really slow until it warmed up.

 

[Vesper]

I do tend to have a Wireless keyboard dongle in all the time, but have tested without. No external HDD's connected either. I read somewhere that a Surge Protector (which I have recently added to the setup) can cause issues. Will try that when I get home.

Also seen info about power jumper on MOBO headers not connected properly which I will try too.

Would RAM running at different speeds cause much issues. I have 4GB OCZ older memory and newer 8GB GSKILL.

Are you plugging both of those sets of RAM in at the same time? If so remove the 4GB ram and just stick with the 8

 

[westom]

Would RAM running at different speeds cause much issues. I have 4GB OCZ older memory and newer 8GB GSKILL.

By kinowing what the power controller does, then it is obvious that neither RAM nor surge protector has any relationship to this problem

Power off and poiwer on are completely controlled by this. Provided was the only and simple way to see what it is doing and why it is doing it.

 

[FrankDaTank]

Thanks for the replies guys. Have been flat out working lately. I cant rma mobo as its old. I thought the ram wld be fine as its been running on 12gb mixed fine. New development is i took it for a lan session and it wld not and still wont power on at all. Just great.

Need to get my hands on another PSU now...