Komputerbay 4GB (4x 1GB) DDR PC3200 400MHz DIMM Desktop RAM for AMD based motherboards only - will not work on Intel based motherboards including Dell, Sony, etc Komputerbay 4GB (4x 1GB) DDR PC3200 400MHz DIMM Desktop RAM for AMD based motherboards only - will not work on Intel based motherboards including Dell, Sony, etc Only works with AMD based motherboards that accept DDR 184 PIN memory Non-ECC Unbuffered, 184 PIN, DIMM Lifetime Warranty