Bios update problem with intel dp35dpm

I was using a c2d e4500 on my dp35dpm and all was fine. then i bought a used q9400 from pakgamers forum and replaced my CPU. all was fine except the bios was not showing the processor model correctly neither it was showing its speed. In windows dxdiag was showing me correct model speed, cache etc. however the temperature in speed fan software at idle 46-56 C my room temperature was around 28 C at that day. I did not applied new thermal paste on that processor so that could be possible reason for the higher temperature or may be the old bios as i never updated it since i bought it in 2007.

So i decided to upgrade the bios. I downloaded the express bios update exe file from〈=eng

and start that application in windows 7 32 bit. the application asked me to reboot and wait for 3 mints. but after restart my computer never boot again. there was a static " _ " mark on top left corner of screen and nothing was progressing after displaying that sign. after searching on Google i found a method to recover my bios by writing .bio file on cd and booting from that. but it didn't work either. as i didn't had any warranty left. so i took my PC dubai plazza at umer electronics as they are famous for MB repairing in RWP / ISB. but they told me that they don't have bios software file so they are unable to install a fresh bios software on my motherboard. now please tell me what is actually going on. and from where i can find that bios software binary file.