1GB KIT (2 x 512MB) For MSI Motherboard 945P Neo-F Platinum 946GZM 946PLM 955 X 975X PowerUp Edition V2. DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory. Genuine A-Tech Brand. 1GB KIT (2 x 512MB) DIMM DDR2 NON-ECC PC2-6400 800MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For MSI Motherboard. (See Compatibility List Below)