1GB KIT (4 x 256MB) For HP-Compaq HP Pavilion Desktop 7862 (RDRAM) 7872 7879 7951 7951.la 7954 7954.la 7960 7961 8710 (RDRAM) 8720 (RDRAM) 8883 8892 8894 8896 8898 8899 9720 (RDRAM) 9760 9810 9850 9851 9853 9870 9871 9888 9900 (RDRAM) 9910 (RDRAM) 9971 9977. RIMM RD NON-ECC 800-40 800MHZ 40ns RAM Memory. Genuine A-Tech Brand. 1GB KIT (4 x 256MB) RIMM RD NON-ECC 800-40 800MHZ 40ns RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For HP-Compaq HP Pavilion Desktop. (See Compatibility List Below)