|"I have replace mainboard because previous mainboard was dead "|
Motherboards DO NOT spontaneously go dead, unless they have been damaged by an external event, or unless some of the electrolytic capacitors on the mboard have failed.
HOW did the mboard get damaged if that applies?
Did someone drop the laptop or spill liquid on it?
Was it exposed to a power failure event while the AC adapter was plugged in ?
Some mboards develop this problem - electrolytic capacitors were installed on them that were not properly made, and they fail eventually - the mboard manufacturer didn't know they were improperly made at the time the mboard was made.
Open up your case and examine the mboard to see if you have bad capacitors, and/or other findable signs of mboard damage .
This was the original bad capacitor problem - has some example pictures.
History of why the exploding capacitors and which mboard makers were affected:
What to look for, mboard symptoms, example pictures:
Home page that site
- what the problem is caused by
- he says there are STILL bad capacitors on more recent mboards.
Pictures of blown capacitors, other components, power supplies, fried Athlon cpus, etc.:
Did you wipe off and re-seat the ram ?
Dis you check the ram settings in the bios ?
Did you run ram diagnostics ?
Did you run CHKDSK /F C: ?
There may be a problem with something on the Windows installation that is trying to load when you boot normally that is not loaded when you boot into Safe mode. Running CHKDSK /F C:may fix that.
I don't know if CHKDSK will run before Windows loads when you boot into Safe mode - I don't recall ever trying that.
As far as I know, the fact that Setup stalls during the second stage at 3x minutes left can ONLY indicate you have a problem with Windows detecting hardware.
It's extremely unlikely that has anything to do with the cpu. Is it the same cpu that was used in the other mboard or did it come with the mboard or what ?
You could try booting and pressing F8 and selecting Enable boot logging which will attempt to boot Windows normally and make a log file of what loads while booting and you can examine that file for problems in Safe mode, but in my experience the log file often fails to be made.
You could try booting and pressing F8 and selecting Enable VGA mode - that loads Windows completely normally except it uses the same default VGA video drivers that Safe mode does. If that works fine,it's probably the video adapter on the mboard that is the hardware problem.