First you need to determine what is your SATA Controller model number is. Look on Dell site for your chipset, then look on intel site for chipset details: For example my Dell Latitude D630 has ICH8M IO controller. and I see the number ICH8M in my storage controller description.
| IO Controller | SATA Controller |
|---|---|
| ICH8 Base | 82801HB |
| ICH8R | 82801HR |
| ICH8DH | 82801HH |
| ICH8DO | 82801HO |
| ICH8M Base | 82801HBM |
| ICH8M-E Enhanced | 82801HME |
How to Install DE