HP nx6125 and 6 hours installation time! Help

[mTm]

Hello,
I have HP nx6125 laptop computer. I'm tring install Zephyroth RevX. Every thing is OK. But, Intallation time very long, 6 hours. Help me. (soryy, my english very bad)

HP nx6125 laptop
CPU : AMD Turion 64 (SSE2, SSE3)
RAM : 1 GB (512 MB x 2)
MainBOARD : I don't know
Chipset : ATI x200 (I think)
VGA : On-Board