I think I have defective RAM

i bought a g-skill 2 set ddr2 4gb pc2-8500 1066mhz(clearly labelled on the ram), i've check that all my components (cpu,motherboard etc) can support 1066mhz ram speed, but when i went into bios to check it says that the maximum ram speed available was 800mhz, and i also dled the latest drivers but still nothing happened, is it possible that the ram i bought was defective?

specs:
cpu – e8500

motherboard – Asrock 4Core1600P35-WiFi Motherboard (Intel P35/ICH9R Chipset, Socket LGA775 supports Intel Core 2 Extreme / Core 2 Quad / Core 2 Duo / Pentium Dual Core / Celeron, Penryn Quad Core Yorkfield and Dual Core Wolfdale processors, 1600(O.C.)/1333/1066/800 MHz FSB, 2 x 240-pin DIMM Dual Channel DDR-3 1333/1066 Memory (Max 4GB), 4 x 240-pin DIMM Dual Channel DDR-2 1066/800/667 Memory (Max 8GB), 2 x PCI-Express x16 (white @ x16 mode, purple @ x4 mode, supports ATI CrossFire), 3 x PCI, 6 x SATAII 300 ( Supports RAID 0, RAID 1, RAID 10, RAID 5), 1 x ATA133, 8-Channel Audio, Gigabit 10/100/1000 Mb/s Ethernet LAN, up to 10 x USB2.0, eSATAII, 802.11g Wireless LAN, ATX form factor, All Solid Capacitor design.) http://www.asrock.com/mb/overview.asp?Model=4Core1600P35-WiFi&s=n

psu: silverstone 500w ST50EF-PLUS

RAM site: http://newgskill.web-bi.net/bbs/vie...&sc=on&select_arrange=headnum&desc=asc&no=119

You might try another manufactures DDR2 RAM. Companies like Corsair, Kingston or Crucial are good