HP 1TB 3G SATA 7.2K 3.5in NHP MDL HDD (507772-B21)
HP 1TB 6G SATA 7.2k 3.5in NHP MDL HDD (659337-B21)
and
HP 8 GB Fully Buffered DIMMs PC2-5300F 2x4 GB LP Memory Kit [p/n: 397415-B21, 466440-B21]
KVR667D2D4F5/4G Kingston DIMM 4GB 667MHz DDR2 ECC Fully Buffered CL5 Dual Rank, x4
is it compatible for HP Servers ?