Hic, I just bought 8GB RAM from Kingston then got the e-mail from Mwave :((
The link for product information
http://www.gskill.com/products.php?index=355
Specification
Designed For 2nd Generation Intel® Core™ Processors
System Desktop
System Type DDR3
M/B Chipset
Intel P67
Intel Z68
CAS Latency 9-9-9-24-2N
Capacity
4GB (4GBx1) / 8GB (4GB x2)
Speed DDR3-1600 (PC3 12800)
Test Voltage 1.5 Volts
Height 40 mm / 1.58 inch
Registered/Unbuffered Unbuffered
Error Checking Non-ECC
Type 240-pin DIMM
Warranty Lifetime
Features Intel XMP (Extreme Memory Profile) Certified
good price