Can't Install Windows7 Ultimate on NEW BUILD.

Bad motherboard?

Enter Device Manager during install to uninstall any Devices showing in error (likely Display) so that install will complete, then update them from desktop. Device Manager - Access During Windows 7 Installation

The problem is that more than 2gb RAM can sometimes block Win7 install, so the inability to remove all but 2gb RAM is a problem whether it tests good or not.

Boot into Win7 System Recovery Options to run Startup Repair - Run 3 Separate Times making sure Win7 or it's 100mb System Reserved partition (preferred if you have it) is marked Active first: Partition - Mark as Active .

Make sure all other HD"s and peripherals are unplugged.

Did you complete all other Steps? What is SATA controller setting. Try another to install.

As a last resort move HD to another machine to install with only it plugged in, then SysPrep to move HD to another computer to return HD to problem rig. Make sure the SATA settings match.

What do mean by SATA controller setting?

I did all from post 22. Except Sysprep part. I did put in the lowest RAM i have (DDR3 4gb 1333). Got STOP error 0x00000024 NTSF.sys. Wouls this mean the HD is faulty?

Do you have a SATA HD? If so there should be a SATA setting near the HD listing in BIOS. Try install using AHCI mode first, then IDE.

Test your HD using maker's HD Diagnostic extended CD scan, followed by Disk Check run from the installer Command Line: DISKPART At PC Startup. Create a full disk partition using installer to run the Disk Check.

How many passes did you run with memtest? Try it overnight to stress the RAM.

on this Mobo ACHI is default. HD diagnostic for Seagate showed no HD. Ran dskchk from command prompt and Windows found no errors. Windows sees the HD.

Is HD detected in the BIOS?

What is the HD make? Test it with the HD maker's HD Diagnostic extended CD scan.

bios sees HD. HD maker is Seagate. Ran thier HD Diagnostic...didnt see the HD.

Can you describe what happens when you run SeaTools? Did the disk boot and show activity searching for the HD? What was the error?

Seatools booted correctly. Ran it's scan. No HD found. I tried it a few times and switched out cables too.