This server is too old to bother with - you could get as much power by running a VM on your home computer - but ... Yes, you need drivers. We need to know which controller you have. If you have a SCSI drive, you likely have the PERC 4e/Si. If you are using a PERC 4/DC or 4/SC, you can only use 2003/2008. Anything newer than Windows 7 / 2008 R2 is NOT compatible with this RAID controller, so you can only use a maximum of Server 2008 R2. You will need to use an old Linux kernel on this machine too. Check the support site for actual supported linux distros.  You can confirm your RAID controller, by going into the configuration utility during POST: CTRL-M if it is a PERC, and you can find the model in there. It you don't have a CTRL-M OR there are no physical or logical drives listed in there, then you are using something else. If you have a CERC (not PERC), then everything is different. Server 2008 R2: [URL] (they are no longer included in the OS)Server 2008 drivers should be built into the OS.Server 2003 drivers: [URL] 
Hello. I am trying to install windows onto a dell 1850. Scsi drives are raid 0 and initialised. The win installer cant see the vd. I cant remember which drivers i need to put on a pen drive.   Could someone remind  me please.  
Poweredge 1850 drivers