Unable to boot to windows

[satlover]

I am unable to boot windows, after i changed my motherboard, i assumed it's fried. I tried all the options; safe mode, last configuration mode, everything, with no luck. I own emachine
H2742, specifications:
Type of system Desktops/Servers
Bus Architecture PCI
Hard Drive Bus Ultra ATA/100
CPU Type 2.70GHz Intel Celeron
Model Comments 400MHz FSB, Intel 845GV Chipset
HDD Comments 40.0 GB
the mother board i put in,specifications are:
FOx 661MX Pro
Supports compatible Intel® Socket 478 processors
533 / 400 MHz FSB
Single Channel 400MHz / 333MHz / 266MHz DDR SDRAM x 2 DIMMs
1 x AGP 8X , 3 x PCI
5.1 channel audio, AC’97 (Realtek)
10 / 100 Mbps LAN (IC Plus)
8 x USB 2.0 ports
I couldn't get to the bleu screen, i see it may be for one sec and despears right away.
I can get to bios, i tried to boot from cd rom first, no luck, than tried to boot from HHD first same thing. Can someone help me please i am going nuts.

 

[Tedster]

please clarify. Did you change to a different mobo or are using the same kind?
Why did you change the board? You cannnot use a different mobo with windows... winodows configs itself to the system it was loaded on originally. Also this question should be posted in the windows forum.