CPU does not BOOT. No fan, no beeps, no leds, NOTHING !

I am putting some parts together to make a PC: Microstar MS6191 motherboard ver :1, AMD Athlon 700mhz, 64MB SDRAM (133 Mhz). I have read the manual and have connected the case power switch onto the board. I have ensured all cables are secure. I have taken care with antistatic. I know the ATX power supply works. I have checked and double checked the HDD, FD cables (in and in right place). Yet, on switching on nothing hapens, not a sound, not an led come on! The motherboard manual refers to using 100 Mhz SDRAM. Could this really be my problem? Can I remove SDRAM and peripherals and try to see if at least the motherboard will attempt to boot? Any other suggestions. Please HELP !!!

It is indeed possible that your ram is not backwards compatible.

Start off with just the basics needed for the computer: ram, hard drive, video card (if not onboard) and see if it works. If not, take out the ram and see if it will turn on and give you a beep code. If it does work, add back peripherals one by one until it stops working, and you've found the problem. If removing the ram lets it start and gives a beep code, you've found your problem.
Its really a matter of isolating each possible cause, and eliminating them.

Thank you for your advise. I will try that and will let you know. Much appreciated.
Chris

I removed all peripherals, and eventually the memory too - still could not reboot the PC. Concluded that the motherboard is duff. Thanks for your help anyway.
Chris

power supply could be bad too, try another one of those

Adam TT