SATA and PATA compatibility

If I use a SATA drive as my master, my old PATA drive as a slave, will it slow down the speed of the SATA?

 

No

What are you trying to do?
A SATA drive has no master or slave setting.
Without knowing what your doing you probably should leave your PATA as Master on the Primary channel
Run any CD/DVD drives on Secondary channel

 

rolleyesI have a similar situation, mixing SATA and PATA on the same system. I plan to run the SATA as the primary dirve with OS (Windows 7) and use the PATA as data back up. My question is this: How do I configure the PATA drive, as Master, as it is the master on the IDE bus, or as Slave, as it is the slave in the overall system???

 

Master/slave is per cable so if it is the only device on the cable se it to master.