My monitor do not work in VGA mode

[meistergroe]

I have the following problem: first of all, when I made a boot defragmentation of C:/, after 5 minutes my monitor showed up "no video imput" and got in stand-by. This was frustating: I had to wait until the system started to beep, and reboot... And second, I wanted to find some settings in the BIOS to fix this problem, I started to search, and after 3 or 4 minutes... the same thing: "no video imput", and a black screen...
How can I get my monitor to work in vga mode also? Or is something else here?
Some infos: I have a HP XW-4400 Workstation, it comes with pre-installed XP, but for two years I upgrade it to W7 Pro. I installed all the drivers for w7 from the HP site, because on my recovery CD are only the drivers for XP. Some of the w7 drivers failed to install... but all that I could install, I installed. I tried to find a driver for the "on-board vga intel video driver", but nothing to find on the HP site... I already searched everywhere on the w7, and I put all the settings for monitor and video to sleep "never", but with no change when it comes to boot operations.
Can somebody help me please?
It is very risky to not see what is going on when you defragment on boot, or when you are in the BIOS settings...
Please, forgive my english, I am not a native one...
Thank you in advance, Eugen

 

[pebbly]

Hi meistergroe, Welcome to the forums , download the Intel chipset drivers here HP xw4400 Workstation -  Intel Chipset Software Installation Utility - HP Business Support Center These are only for XP you will have to install them in compatibility mode , Have you tried booting into "safe mode" if so what was the out come ? you may also want to try a system restore prior to the start of your problems

 

[meistergroe]

Hy, pabbly, thank you for the advices. I downloaded the driver, and I will try to install this week end. I want also to check if my video board has connection problems with the main board... But after this check, I will install the driver...