GA-P67A-D3-B3 duble start

[emin-exe]

the PC boots into windows fine.All works perfect.
But during powering up after post always turn itself off completely, wait 2-3 seconds,
and then turn itself back on post2 and load win.
No overclocking, bios reset, then flashed with F4, bios optimal defaults loaded,
I remuve SDD and HDD and nothing has changed.

think that in addition to optimal settings in BIOS there is something wrong.

do you have a suggestion how do I determine what is wrong


MB GigaByte GA-P67A-D3-B3
   (flashed with F4)
   *note on start up screen still stand F1
   in BIOS it self F4 

CPU i5-2500k (3.30GHz)
2x2Gb Kingston KHX1600C9D3X2K2/4Gx
GigaByte NVIDIA GeForce GT430 GV-N430OC-1GL

SSD ES0040S EXCELERAM 40GB SSD SATA300 Mangusta SandForce
HDD ST31000524AS SATA3 7200 1TB Seagate Barracuda

PSU Thermaltake Berlin 630W

[Dark Mantis]

Posted by: emin-exe  
Insert Quote
the PC boots into windows fine.All works perfect.
But during powering up after post always turn itself off completely, wait 2-3 seconds,
and then turn itself back on post2 and load win.
No overclocking, bios reset, then flashed with F4, bios optimal defaults loaded,
I remuve SDD and HDD and nothing has changed.

think that in addition to optimal settings in BIOS there is something wrong.

do you have a suggestion how do I determine what is wrong


MB GigaByte GA-P67A-D3-B3
   (flashed with F4)
   *note on start up screen still stand F1
   in BIOS it self F4  

CPU i5-2500k (3.30GHz)
2x2Gb Kingston KHX1600C9D3X2K2/4Gx
GigaByte NVIDIA GeForce GT430 GV-N430OC-1GL

SSD ES0040S EXCELERAM 40GB SSD SATA300 Mangusta SandForce
HDD ST31000524AS SATA3 7200 1TB Seagate Barracuda

PSU Thermaltake Berlin 630W
 

Hi

The first thing to try is to clear the CMOS.

Remove the power cable from the mains supply and then press the power switch on the case for a few seconds just to drain any residual energy in the PSU capacitors.

Once done remove the motherboard battery for at least one hour before replacing it.
 
Next plug back into the mains supply and boot.
 
You will now need to enter the BIOS by pressing DEL and load Optimised BIOS Defaults.

Make any other changes to the BIOS settings to suit your self like disabling the floppy drive, disabling the full screen logo and making the HDD the primary boot device and then press F10 to save and exit.

[emin-exe]

OK, I tried that but the problem remains the same.
I noticed that on the first POST shows F1 and on the second POST F4
How is that possible after flashing BIOS.

[Dark Mantis]

The thing is Gigabyte motherboards have a dual BIOS system. That enables the board to flash the Main BIOS over with the Backup BIOS in case of fault or corruption. What is happening in your case is that the Main BIOS is trying to boot , failing and then the Backup BIOS is kicking in and taking over.

Try following these instruction next. You may need to try a few times before you are sucessful.

You can kick in the backup BIOS by shutting down the PSU from the wall, then hold down your case power button in and then turn on the power supply button, a few seconds later the board will start, shut off the power supply then.   Then you can turn on the power supply again and power up the board normally and DualBIOS will kick in.

[emin-exe]

I have not heard of a similar method, it seems to me that it can cause damage to the motherboard.
In any case I will try

[Dark Mantis]

I can assure you that it does work but not always first time! It can take a bit of getting the timing right.

[emin-exe]

I managed to do as directed. BIOS is loaded from the backup to MAIN BIOS and now I have both F1, but the problem still exists

[Dark Mantis]

I suggest that you now update the Main IOS to the latest version using QFlash not @BIOS. Once you have done that and the BIOS has been verified that it is working ok then synchronise the two BIOSes, Main and Backup, together.

[emin-exe]

I did a new update bios (F4) with Q-flash, from USB all goes fine,
after a reboot and load optimal defaults settings in the BIOS and restar,
received a message that bad chek sum CMOS.

After the next reboot everything goes as usual:
First post appears to mark F1 (as in the image from my first post),
then the computer shuts down and goes to another post with the label F4.

Which BIOS is now updated ?  at F4  main or backup?
What would happen if I now try a sync  Main BIOS and backup?

[Dark Mantis]

It would seem that you have now booted using the F4 Main BIOS . What you need to do now then is synchronise the Backup BIOS to be the same as the Main BIOS.

From a cold start with the power to the machine switched off press the power button and then enter the BIOS by pressing Del. Then when you get to the main screen press F9. This will bring up an extra screen which will display more information about the two BIOS versions. Assuming they are different exit the BIOS and shutdown. Again press the power button and this time press Alt + F12 where you would normally use the Del key to enter the BIOS. You will find that then your monitor will turn black and you will see:

Press [Enter] to start copying main BIOS to backup BIOS...

When you press Enter more text will appear saying:

Writing BIOS image.... xxxKb OK

Once completed  more text will show:

BIOS successfully recovered! Power off or reset system!

Do as it says. Both Main and Backup BIOS chips now store the same BIOS version. You can now reboot as normal.

[emin-exe]

Now here it is again a problem on F9 I get information about only one bios

By the way on ALT + F12 I got a boot selection to choose from which device to boot.

[Dark Mantis]

Now here it is again a problem on F9 I get information about only one bios

By the way on ALT + F12 I got a boot selection to choose from which device to boot.

The Alt+F12 option is always there and is often used especially when you want to boot from CD or USB pendrive just for once.

The BIOS issue is something that occurred when the P67 boards came out and several BIOS versions were affected.

[emin-exe]

I now saw that the CPU i2500k is supported only  from F3 bios, is it maybe even lead to some damage to the bios or cpu

[Dark Mantis]

No it just means that the CPU wouldn't be recognised by any BIOS before that. However from memory that was the first BIOS released with the motherboard.

[emin-exe]

does that mean that MB is not correct and that there is an error in production?

is there something more to try, or should I throw it in the garbage?