G.Skill DDR2-1000 2x2GB F2-8000CL5D-4GBPQ
-4GB (2 x 2GB)
-DDR2 100
-Timings 5-5-5-15
-2.0-2.1v Rating

This was my first ever kit of G.Skill. At that time i got it less than a hundred dollars, and performed better than it's stock speed. I ran them at DDR2-1066 2.0v for everyday use. They never ran hot, again, warm just like the other kits of G.Skill that I've used.
DDR2-1066 2.0v (BIOS)
I've used this kit on the following boards, and ran them at DDR2-1066 2.0v:
Asus P5K-E
Asus P5E-VM HDMI
Abit IP35 Pro
Specs:
E6600
G.Skill DDR2-1000
____________________________________________________________________________________________
Asus Maximus II Formula Q9650 at 4.ghz and Ram at DDR2-900

Specs:
Intel Core 2 Quad Q9650
G.Skill DDR2-1000