Computer keeps restarting after installing AMD Display Driver

Good day,
I just bought a new PC and I was installing all drivers when it suddenly restarted. After countless hours I'm able always reproduce the error:
Install a fresh new Windows 7 Enterprise, install Catalyst version 12.8, after the normal reboot, a few seconds after the login screen shows the computer restarts.
I've already configured windows to not automatically restart on system failures and write a minidump information but the BSOD won't appear and no minidump file is created.
I was able to reproduce installing just the AMD Display Driver of the catalyst. Tried several versions(the one that came with the motherboard, the last stable(12.8) and even the beta(12.9)) all with the same results.

The SF tool zip file is attached.

I think it is a hardware failure but I'm not able to find out what part is the problem. I'm performing the memtest86+ all night long.

If anybody needs more information, please, feel free to ask and I'll try my best to get it.

Thank you for any help.

Good day Arc, thank you for you reply.

Do you want me to install the network driver before installing the Display Driver or after? I'm not able to install anything after I still the display driver because I can't log in to windows.

I've already installed the network driver from the gigabyte site and it worked perfectly without the display driver installed.

I'll make a fresh install, install the network driver from the CD and install the display driver from CD too. I'll post the results soon.

Thank you for your help.

Hello again,

fresh install of windows, installed network driver of the motherboard CD. Installed this version of catalyst: 12-8_vista_win7_win8_64_dd_ccc.exe (the one autodetect tool has choosen).

After the normal restart of the driver, the machine rebooted a few seconds after login screen. Rebooted in safe mode in order to run SF Tool and grab the files.

Attached if the SF Tool information.

Thank you again.

Hi again,

download the "Win7 and WinServer 2008 R2 Driver" version 7.061 of the network driver.

Logged in safe mode, uninstalled the network driver as you said, then restarted the computer. I was able to log into windows but it restarted after 20 seconds. Logged again in safe mode with network and installed the downloaded driver. Restarted and again I was able to log into windows but it restarted after approximately 30 seconds.

Logged again in safe mode in order to run SF Tool.

Attached in the last SF Tool files.

Thank you again.

Sounds like it needs the Chipset driver or even the IRST driver. Have you installed the proper ones?

Good day again,

Arc,
the "Automatically Manage paging file size for all drives" was already checked. I unchecked, checked again, restarted but no dumps were generated. I got no BSOD, the system simply resets.

I´m in safe mode now, but there are no dumps

TokiHacker,
I´ll try installing the chipset and raid drivers. But at the first time I´ve already done it with no success.

Thank you.