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Windows 7: Bios not starting on power on/restart

20 Jan 2012   #1
brianzion

Operating System : Windows 7 Home Premium Edition 6.01.7600 SP1 (x64)
 
 
Bios not starting on power on/restart

hi all
need a little advice on when the machine is turned on there is no output from the bios to start the boot-up process its happened about 4 times in the last month the fans/lights are running in the machine so its powering up ok just no BEEP and boot up it has done it today on a normal restart after updating some programs (urging me to post it in this thread) so i power off the machine and unplug the mains input and press power button for 8 secs to drain out power from psu/mboard and re-power up and the BEEP is there and bios kicks in and windows starts ok. now on my own research and looking at the problem i might be looking at having to replace the battery on the motherboard, but would appreciate anyone's feedback and advice many thanks brian


My System SpecsSystem Spec
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20 Jan 2012   #2
Qdos

 

It sounds more like a corrupt MBR issue than a BIOS one.
My System SpecsSystem Spec
20 Jan 2012   #3
Dwarf

Windows 8.1 Pro RTM x64
 
 

Does the screen appear? Is it just the Beep sound that isn't happening? If so, it could be that the connections to the internal piezo speaker have become loose.
My System SpecsSystem Spec
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20 Jan 2012   #4
brianzion

Operating System : Windows 7 Home Premium Edition 6.01.7600 SP1 (x64)
 
 

the beep sound sounds and machine boots ok normally. but 4 times over a month when the machine is turned on there is no beep and no boot up just blank screen but fans are spinning etc and on a re-boot today it happened
My System SpecsSystem Spec
20 Jan 2012   #5
brianzion

Operating System : Windows 7 Home Premium Edition 6.01.7600 SP1 (x64)
 
 

i was due to clean the inside of machine soon so i could check connections on the drive etc over the weekend is it worth repairing the mbr with the repair disc?
My System SpecsSystem Spec
20 Jan 2012   #6
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

When it does boot is the time in bios and windows correct? Normally they won't be if the the mother board battery is bad. That being said; those batteries are cheep and easy to replace and reset the time in bios and Windows.
My System SpecsSystem Spec
20 Jan 2012   #7
brianzion

Operating System : Windows 7 Home Premium Edition 6.01.7600 SP1 (x64)
 
 

yep checked the time all is correct
My System SpecsSystem Spec
20 Jan 2012   #8
FliGi7

XP / Win7 x64 Pro
 
 

Sounds like a motherboard issue if you're not even seeing the POST screen (the one that displays all the motherboard info before the Windows logo appears). The battery would not cause it to be unable to boot. I would check, clean, and re-seat all of the connections on there to rule out that possibility.
My System SpecsSystem Spec
20 Jan 2012   #9
Sbrideau

Windows 7 Pro x64
 
 

Before saying it's the motherboard, I'd first check if it could be the PSU and if everything is connected correctly. How old is the computer?
My System SpecsSystem Spec
20 Jan 2012   #10
brianzion

Operating System : Windows 7 Home Premium Edition 6.01.7600 SP1 (x64)
 
 

machine is two years old now over the weekend i will shut it down and check everything connected and give it a good clean inside i will change the battery and see how it fairs and report back to the thread thanks for all your input
My System SpecsSystem Spec
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 Bios not starting on power on/restart




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