Blank screen when trying to boot.

I just recently tried to put a new motherboard into my computer and I have everything hooked up right but when I turn it on all I get is a blank screen. The HD makes it noise and the floppy light comes on and goes off like normal, same /w the CD but I get nothing on the screen. I've tried 4 seperate video cards both ISA and PCI unsing different slots each time, but the moniter remains blank, and the little light on it stays orange. I have no clue who makes my motherboad all I know is it's a socket 5.. at first I thought that might be my problem since I'm using a Cyrx 6x86 P150+ but I also tried a Cyrix 6x86 P120+ and an AMD K6 233 and nothing seems to work. Please help me if you can. As I said before I don't know who makes it but if it helps here are the numbers on the board itself.. PBA 634383-808, and AA 641384-808, and the last on on the back is.. PB 629457-008. Please help me, my other MB is going dead and this is my last resort. I would greatly appreciate it. Thank you.

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»Derrick

Are you getting any beeps at boot up?
Are the jumpers on the motherboard set up correctly, for processor and voltage?
Have you checked the memory for proper type for the Motherboard?
Check the clear CMOS jumper on the motherboard also.
Check the P8 and P9 power connection for proper installation, (Black wires in the middle)

[This message has been edited by Eagle PC Diagnostech (edited September 15, 1999).]