No display and not functioning

your hard drive is not functioning
it is faulty
change it

Either download an installer disk on to a DVD or partition a harddrive with an installer disk on it. Boot from that disk and restart the computer, it should boot up and ask to install Windows 7.

If it is not seeing it then you will need to format it properly for Mac's most hard Drives are pre-formatted for PC's.
You also need to make sure the SATA cable is plugged into the right place on the board.
SATA Hard Drives do not need a pin out. Only IDE drive's have that function.

If this is an addon drive then


Open the system drive, usually titled "Macintosh HD." Open Applications, then Utilities and double click the "Disk Utility" program to open it. A window will open giving a list of all the drives currently mounted on the computer.

Select the disk that needs to be formatted on the left. It is not possible to format the startup disk unless the system has booted from the Install Disk. It is important to note that formatting the startup disk will permanently erase the data stored on the disk. If you are planning on erasing the startup disk, back up all important files and applications.

Click on the "Erase" tab to the right of the list of drives. The window will now display the options for erasing the hard drive and formatting it to work on the Macintosh computer.

Select the Volume Format from the pop-up list. In most cases it's best to leave it at "Mac OS Extended (Journaled)" as this is the default. This setting is the best option for running Mac OS X. If there are other requirements for the disk, then select the format that best suits your needs. If you have questions about the formats, refer to the Apple user's manual.

Name the hard drive. Type a name for the disk in the field where it asks for the name. This name will always appear when the disk is mounted on a Macintosh computer.

Click the erase button. A window will open asking to verify the erase procedure. Click the erase button in this window to start the process of erasing the disk. Once the process is complete, the drive will appear with the name it was given on the left side of the window with the list of drives and on the desktop of the Macintosh computer.

I got these instructions off ehow.com

You need to format your drive to work with your Mac. The drive is shipped formatted as NTFS (Windows).
I'm going to assume that you are using Mac OS X 10.5 or later.
1. Open Disk Utility
2. Select Applications > Utilities > Disk Utility
3. In the left hand column, click on the drive icon for the Iomega Hard Drive.
********Make sure you click on the high level icon, not the second level volume icon.********
4. Select the Partition tab.
5. Change Volume Scheme from Current to 1 Partition.
6. Select the format type from the Format drop-down menu.
Select Mac OS Extended (Journaled) (recommended) or Mac OS Extended.
7. Click on the Options button.
8. Select the type of partition you want to use:
GUID Partition Table - for boot ability on Intel-based Macs
Apple Partition Map - for boot ability on PowerPC-based Macs
Master Boot Record - if you will use the drive on a PC as well as your Mac. Use this option ONLY if you selected PC-DOS as the format type.
CAUTION! In most cases, the computer will fail to format the drive as a Mac OS Extended (HFS+) partition using Master Boot Record. For best results, always choose GUID Partition Table (Intel) or Apple Partition Map (PowerPC).
9. Click OK.
10. Click Apply (10.5-10.6) or Partition (10.4). The drive is ready to use when the format completes.

You will need to format the drive to work with you Mac.
1. Open Disk Utility
2. Select Applications > Utilities > Disk Utility
3. In the left hand column, click on the drive icon for the Iomega Hard Drive. Make sure you click on the high level icon, not the second level volume icon.
NOTE: For devices with 2 or more hard drives, please review the configuration settings to determine which volume type works best for you.
4. Select the Partition tab.
5. Change Volume Scheme from Current to 1 Partition.
6. Select the format type from the Format drop-down menu.
Select Mac OS Extended (Journaled) (recommended) or Mac OS Extended.
7. Click on the Options button.
8. Select the type of partition you want to use:
GUID Partition Table - for boot ability on Intel-based Macs
Apple Partition Map - for boot ability on PowerPC-based Macs
Master Boot Record - if you will use the drive on a PC as well as your Mac. Use this option ONLY if you selected PC-DOS as the format type.
CAUTION! In most cases, the computer will fail to format the drive as a Mac OS Extended (HFS+) partition using Master Boot Record. For best results, always choose GUID Partition Table (Intel) or Apple Partition Map (PowerPC).
9. Click OK.
10. Click Apply (10.5-10.6) or Partition (10.4). The drive is ready to use when the format completes.

1. First format all the other partitions in your system except the Drive in which the OS is installed.
2. Most probably the OS drive is C: Drive.
3. Then get an operating system CD/DVD Windows XP/Windows Vista/Windows 7
4. Then on start up insert the OS cd and select the option to install the OS.
5. When you click next there will be an option to specify the Drive in which you will be installing the OS.
6. Select the Drive in which the previous OS had been installed.
7. Now in the next stage there will be option whether to install the OS with or without formatting Drive.
8. Select the Format Drive Option and click Next.
9. Congratulations you have formatted all the partitions in your System/Laptop/PC

Hi,

First you need to have the system files to format the harddrive and the process is to simply right click the pen drive and say Format . An option pops up select copy system files and format.then boot the system and it boots via pen drive type in the prompt Format c: /s/Q the disk will get formated.
Regards.

Formatting the hard drive is not a function of the BIOS. You will need to boot the machine from either the Windows CD and do a fresh setup (which will give you the option to format the hard drive) or boot from a bootable CD or floppy disk that has the format command on it. From there you execute the format command and follow the directions.

The quickest solution here would be to put the hard drive into a computer that has Windows already running, and format it through the operating system itself. I've run into this problem a few times, and when another computer wasn't available I would use a Linux boot disk to clear out all my partition tables, then I would load up with Windows XP and tell it to write a new NTFS partition. Do NOT select the 'quick format' option, you'll have to wait through the long one.