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About your PF21 Extreme

184-pin DIMM Banking:
Not Supported
240-pin DDR2 DIMM Banking:
4 (2 banks of 2)
Max Registered DDR2 SDRAM:
Not Supported
Max Registered DDR SDRAM:
Not Supported
Max Unbuffered DDR2 SDRAM:
4GB
Max Unbuffered DDR SDRAM:
Not Supported


Good news!

Your computer will work with several of our Crucial SATA drives.

All compatible upgrades

Compatible memory for:

PF21 Extreme

Compatible storage for:

PF21 Extreme