This is normal behaviour. You can use

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Цитата:
I tried your bios file for tualatin support but bios after post types "unknown flash type". (Checksum is also different).

This is normal behaviour. You can use manually patched BIOS (by BIOS Patcher) or flash rt_6btm.bin in another EEPROM (as I remember this version of BIOS works normally with Winbond 29xxxx, but NOT with Macronix EEPROM's) Note that on 6BTM default EEPROM is from Macronix

For example, I have Winbond 29xxxx & after patching rt_6btm.bin bios by bios-patcher still experiencing problems with Unknown Flash Type message.

Цитата:
And, i don't understand, why if i boot the first time my system hangs; if i reboot system works. (When i reboot bios doesn't show cpu and memory test).

Could you try test your computer with another videocard (better if it will be PCI-video)?

Yes, and let us know about other hardware installed (sound, ethernet, etc.).