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PC Windows 7 won't start up after Windows Update, black screen no signal and no 'star

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Old 06-24-2011, 05:07 AM   #1
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OS: Windows 7



Hi, so as you can read from the title Windows 7 won’t start up and doesn’t make any normal ‘start up beeps’ and just presents me with a black ‘no signal screen’. I assume it automatically installed updates when it last shut down as it was telling me that there were updates ready to be installed and I do remember that one of the updates was for nVidia graphics drivers. However I have already tried the following to try and get it working:

-Removed both graphics cards and replaced them with one old ATI graphics card

-Removed the power cord and held the power button for 3 minutes (apparently this was a solution)

-Removed all USB devices

-Replaced the keyboard with a PS/2 keyboard

-Tried only one of the current graphics cards

-Tried using one monitor with each graphics card

-Removed each RAM stick one by one, however when I only had one RAM stick in it made 3 Sharp beeps on start-up and then turned off and turned back on by itself.

-Unplugged the hard drive

-Plugged the hard drive into a different SATA port

-Removed the motherboard battery for 5 minutes in attempt to rest the bios

So far nothing has worked and I wondered if someone had a solution. The spec of the PC is:

Windows 7 Home Premium 64Bit
Intel Core i7 950 OEM Possessor
LG Blu Ray 6x GGC-H20L Drive
LG DVDRW 22x IDE Drive
OEM Cardreader
Samsung 1.5TB SATA2 Hard Drive
6x GSKILL i7 DDR3 2GB RAM
Corsair PSU 750W
2x nVidia Geforce 9800 GT 1GB

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Old 06-25-2011, 01:03 AM   #2
dai
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cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer

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Old 06-25-2011, 03:53 AM   #3
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Quote:
Originally Posted by dai View Post
cmos reset
turn the computer off
remove the power lead from the back
take the side off
remove the cmos battery
move the cmos jumper from pins 1 and 2 to pin 2 and 3 and the back to pins 1 and 2
reinsert the battery
put the side on
replug in the power lead
boot the computer
Okay I couldn't find any cmos jumpers on my motherboard, however I did find a button that says 'clr cmos' on it so I pushed that and got a really loud constant beep noise. I then turned the computer off and it still doesnt work and I now cannot recreate the beep noise.
This is my motherboard:
MSI Global ? Mainboard - X58 Pro-E
Hopefully that shall help you, thanks.
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Old 06-25-2011, 04:22 AM   #4
dai
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reset it with the computer off
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Old 06-25-2011, 07:18 AM   #5
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Quote:
Originally Posted by dai View Post
reset it with the computer off
Just tried that, still not working :(
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Old 06-25-2011, 10:21 AM   #6
dai
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remove the ram and try and boot and see if you get the bios error beeps because it is missing
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Old 06-25-2011, 11:38 AM   #7
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Quote:
Originally Posted by dai View Post
remove the ram and try and boot and see if you get the bios error beeps because it is missing
I removed the RAM and I got 3 beeps, still no signal on the monitor
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Old 06-25-2011, 08:11 PM   #8
dai
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that would indicate the problem is not the m/board

set it up out of the case on a piece of cardboard with
cpu
video
ram
speaker
and see if you get post
check you have the correct amount of standoffs no more no less
that they line up with the holes in the m/board
usually 9

check the psu with a multimeter

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