Dell PowerEdge 2950 - PERC configuration

I've got a Dell PowerEdge 2950 running Windows 2008 R2.  It has a PERC 4/DC that's connected to a PowerVault 220s.  The PowerVault used to be in split configuration mode.  I've removed its secondary connection and it's now running in joined mode.
When I boot the PowerEdge and go into the PERC configuration, I can see all of the drives.  Half are already configured as a RAID-5, and I want to extend the RAID.  The documentation I have says that I can do the extension by using the Dell System Administration tool.  Unfortunately, when I run the tool, it only detects a PERC 6/i on the system, not the PERC 4/DC.  I have checked the PERC driver and it's running the latest version I could find to download from Dell.  It's signed by Microsoft and is version 6.1.7600.16385.  The Dell Server Administrator is version 7.4.0.2.
I believe I have several options:
1.  Find a version of Dell Server Administrator that will detect the PERC 4/DC.
2.  During boot, clear the RAID configuration and build a new configuration with all of the drives.
3.  Replace the PERC 4/DC with a PERC 4e/DC I have on hand and see if Dell Server Administrator can see it.  The documentation shows that the PERC 4/DC is a PCI 2.2 card and the PERC 4e/DC is a PCI Express 1.0a card, so I don't believe that it's possible.
4.  What other RAID cards are compatible with a 2950 server and a 220s PowerVault?
ITHastingsAsked:
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ITHastingsConnect With a Mentor Author Commented:
Discovered that the PERC 4e/DC will not fit in my PowerEdge 2950.  Took option 2.
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