Hello, I have an HP Pavilion zv6000 laptop that uses an RS480M chipset and takes 939 processors. Unfortunately, when I tried installing a dual core processor (Athlon 64 X2 4200+, E4 stepping, manchester core) it would only use one of 2 cores. I will attach the original BIOS ROM file (latest F.1C, 8/1/2006, Phoenix cME) and a picture of what CPU-Z says. The board is a Quanta 3085 specifically made for the zv6000 and r4000.
zv6000-64x2-cpuz.jpg (Size: 81.29 KB / Downloads: 1)
BIOS.wph (Size: 515.6 KB / Downloads: 0)
