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Hard Drives visible in BIO, but not in Windows

My PC is self built. Intel D975XBX2 Intel Core 2 Duo Ready Socket 775 ATX Motherboard, Intel Core 2 Duo E6600 Conroe 2.4GHz 4M shared L2 Cache LGA 775 Processor - BX80557E6600. I have 3 HDD's, 320 GB Seagate(Primary), 500 GB (Western Digital)& 1 TB (Seagate). EVGA 640-P2-N825-AR GeForce 8800GTS 640MB 320-bit GDDR3 PCI Express x16 HDCP Ready SLI & 4GB RAM. Windows XP Professional (was at SP3 - have to re-update). My PC crashed (I think because of a file downloaded by torrent), removing my administrative rights (I literally couldn't do anything!)

I formatted my Primary drive & re-installed Windows, but I only see my other 2 hard drives when I look at the BIOS. Once I'm logged on I don't see the other 2 HDD's. Has anyone seen this before? Any suggestions?

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