Can not Start my system using power button

arnuld · 2009-02-16 15:13:24

I turn on the power-button of my cabinet and i don't even get the BIOS screen, monitor does not even turns on to show me soemthing. The disk-usage as shown by the red-light of cabinet is 100% bright red light like if it is continuously accessing the HDD.

Then I press the reset button (because the big power-button does not work at this time) and it shows me the BIOS screen. I cleaned up the dirt form the FAN and the heat-sync, I cleaned up the RAM slots, there was lots of dust on RAMs themselves. Now even after checking the power connection on the MOBO and the HDD cables (one IDE and one SATA) I still don't get the BIOS screen at first try. I always have to press the reset button after power-button to get my compuetr working.

Any ideas on the this strange issue ?

whukes · 2009-02-16 17:20:47

Is the power button hooked up to the right location on your motherboard? Look at your motherboard documentation for the location of the pins that you need to plug the switch into.

arnuld · 2009-02-16 20:16:56

whukes wrote:

Is the power button hooked up to the right location on your motherboard? Look at your motherboard documentation for the location of the pins that you need to plug the switch into.

yes, it is. it was workign fine from last 2 months since I assembled it. Only last week it started acted strange. I connected the pins as per the manual and they are not even loose, just checked them.

R00KIE · 2009-02-16 21:12:58

Any sort of overclocking there?

arnuld · 2009-02-17 05:55:55

R00KIE wrote:

Any sort of overclocking there?

No, no overclocking. MOBO supports overclocking but I was never interested.

R00KIE · 2009-02-17 09:47:37

Do you happen to have another (known to be good) power supply around that will be able to power that pc?
Give it a go, lately I've seen lots of problems caused by flaky power supplies (I've had a few problems myself).

arnuld · 2009-02-17 10:01:45

R00KIE wrote:

Do you happen to have another (known to be good) power supply around that will be able to power that pc?
Give it a go, lately I've seen lots of problems caused by flaky power supplies (I've had a few problems myself).

Here is what I did in order:

* I changed all the BIOS seetings to default and then rebooted. Problem not resolved.

* Removed all HDDs and DVD-Drives and USB wires connecting to MOBO. Now MOBO has only 2 things: power supply and 2 RAMs in 2 slots. Then tested it but same problem.

* On the empty MOBO, I checked RAM and slots with different combinations of 1 RAM and 1 slot. Problem not resolved.

* On the empty MOBO, I removed the power connection from cabinet and directly short-circuit(ed) the power-pins (POWER SW pins as manual says it) of MOBO to make sure that power-supply button has problem or not. The proble still remains same.

* On the empty MOBO, I changed the PSU. Problem remains same.

There is one strange thing. If I do reboot using reboot command, it reboots fine but if II shut off and then boot using power button then again I have to use Reset button to start the computer. So, from all this what I am left to deduce ? .... Is MOBO gone or the UPS is culprit ?

cerbie · 2009-02-17 11:11:24

Have you tried a screwdriver to connect the pins?

moljac024 · 2009-02-17 11:16:44

You didn't mention UPS up until now. Tried without UPS ?

arnuld · 2009-02-17 12:02:07

cerbie wrote:

Have you tried a screwdriver to connect the pins?

yep

arnuld · 2009-02-17 15:17:00

moljac024 wrote:

You didn't mention UPS up until now. Tried without UPS ?

Just done that. no luck

R00KIE · 2009-02-17 18:33:13

No beeps or error codes in leds? Does it get to show anything on the screen?
When you say that you have removed everything does that include the graphics card? I'm not sure but if the graphics card can't boot it's bios maybe it can hang the system (not sure on that).
But ... from what you say it may be the board .... half dead already. You have pretty much narrowed it down to the board ... if it is under warranty I would send it back otherwise I would get a replacement. Either way what you have there is the same as a time bomb, today it works but tomorrow it will blow up in your face, with the added "bonus" of other possible hidden problems.
If anything you could try to reflash the bios as it might have been corrupted somehow (quite unlikely).

arnuld · 2009-02-19 04:54:27

R00KIE wrote:

No beeps or error codes in leds? Does it get to show anything on the screen?
When you say that you have removed everything does that include the graphics card? I'm not sure but if the graphics card can't boot it's bios maybe it can hang the system (not sure on that).

No I have speaker on the MOBO but no beeps happen. I don't get anything on the screen without reset button. I can't remove GFX card as its on on-board.

R00KIE wrote:

But ... from what you say it may be the board .... half dead already. You have pretty much narrowed it down to the board ... if it is under warranty I would send it back otherwise I would get a replacement. Either way what you have there is the same as a time bomb, today it works but tomorrow it will blow up in your face, with the added "bonus" of other possible hidden problems.
If anything you could try to reflash the bios as it might have been corrupted somehow (quite unlikely).

Warranty is gone, its more than 3 years since I have bought it. Actually I have got this MOBO couriered to me from my home to here where I work (around 2000 KM) and when I got it here, the cabinet was broken because of some extreme physical shocks but nothing happened to MOBO. I had to buy a new cabinet, that was 2 months ago.

arnuld · 2009-02-19 04:59:08

Here is something new I have tried:

* I used the shutdown command rather than poweroff and then system waits for me to power it off. Then I kept the power button pressed for 10 seconds and it powers the system off. I reproduced it many times.

* When I turn on my machine, as I said I have to use power and then reset button, then when I get to the BIOS screen, I can simply turn it off using a single press on power button, I don't need to keep it pressed for 10 seconds to power off.

* When I have used the power buton without using reset afterwards, machine does not turn on (you know it already). I can turn it off by holding the power button for 10 seconds.

Last edited by arnuld (2009-02-19 05:10:11)

arnuld · 2009-02-20 04:27:33

I also cleared (reset) the CMOS settings using the MOBO jumpers but still no luck. I will try resetting the BIOS using the default MOBO CD and will report back what happens.

arnuld · 2009-02-25 07:08:34

One more update: Yesterday, a strange thing happened. Suddenly, everything on my system got frozen. I gave command <b>top</b> to see what is eating CPU and I got this: I/O Error. I tried running firefox but again system was unable to read the disk. Even when I pressed Ctrl-Alt-Del the system froze in the middle while rebooting. I did a hard reset and then system hung up at BIOS POST message, I reset it 4 times and agian it always got stuck at BIOS POST. AT 5th time it booted but then hanged halfway in the middle when system was starting up. Something came to my mind and I replaced the PSU and at first boot it started working, no I/O errors. I left the system running overnight and in the morning it was still running fine. So I conclude this:

1) MOBO is fine, its the PSU who fried the MOBO
2) PSU itself may not be the problem. It could be the UPS who is sending wrong voltage to PSU and then PSU got corrupted which then corrupted the MOBO.

but how UPS got corrupted ? My system was couriered from 2000 KM away to here and in the process my cabiniet was broken because of extreme phycial shocks given by poor Indian courier compnaies (Well, I can't afford DHL, it is 10 times expansive than normal courier )

Arch Linux

#1 2009-02-16 15:13:24

Can not Start my system using power button

#2 2009-02-16 17:20:47

Re: Can not Start my system using power button

#3 2009-02-16 20:16:56

Re: Can not Start my system using power button

#4 2009-02-16 21:12:58

Re: Can not Start my system using power button

#5 2009-02-17 05:55:55

Re: Can not Start my system using power button

#6 2009-02-17 09:47:37

Re: Can not Start my system using power button

#7 2009-02-17 10:01:45

Re: Can not Start my system using power button

#8 2009-02-17 11:11:24

Re: Can not Start my system using power button

#9 2009-02-17 11:16:44

Re: Can not Start my system using power button

#10 2009-02-17 12:02:07

Re: Can not Start my system using power button

#11 2009-02-17 15:17:00

Re: Can not Start my system using power button

#12 2009-02-17 18:33:13

Re: Can not Start my system using power button

#13 2009-02-19 04:54:27

Re: Can not Start my system using power button

#14 2009-02-19 04:59:08

Re: Can not Start my system using power button

#15 2009-02-20 04:27:33

Re: Can not Start my system using power button

#16 2009-02-25 07:08:34

Re: Can not Start my system using power button

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