ATTEMPTING TO UPGRADE PROCESSOR - HELP!

I MAKE NO EXCUSES - MY SYSTEM IS OLD & SLOW - I KNOW I SHOULD JUST SPEND A FEW HUNDRED & BUY A NEW SYSTEM BUT THAT WOULD BE NO FUN!!
I HAVE BOUGHT A SECONDHAND CPU & ONCE INSTALLED, SYSTEM WOULD NOT BOOT UP - POWER SUPPLY WORKING OK, FANS SPINNING, monitor GETTING POWER BUT NO BEEP, NO DISPLAY ON monitor.
PUT OLD CPU BACK IN & BOOTED UP OK.
MY THOUGHTS ARE - S/H CPU IS NO GOOD / PROBLEM WITH BIOS & S/H CPU / S/H CPU IS NOT COMPATIBLE WITH MY SYSTEM.
OLD CPU - CELERON 468MHZ / 128KB SOCKET 370 (I SAID IT WAS OLD)
S/H CPU - CELERON 1200MHZ / 256KB SOCKET 370 (NOT MUCH BETTER)
MOTHERBOARD IS CHAINTECH.
ANY POTENTIAL ANSWERS?
IF IT IS BIOS CAN I DOWNLOAD UPDATE - WHERE FROM?
IF IT IS INCOMPATIBLE - IS THERE A BETTER CPU TO GO FOR?
ANY HELP WOULD BE GREATLY APPRECIATED, THANKS.

http://www.chaintechusa.com/tw/eng/prod ... 3&SPSNo=13

could one be so enlighted to tell us the motherboard model .

When you put in new cpu, did you consider removing the cmos battery?

sorry, motherboard model is i440zx-8671.

no, i didn't remove battery - wasn't aware that i should!

did i mention that as well as having an old & slow computer, i'm also intelligent enough to be incredibly thick at times!

From what I have found, it looks like this motherboard has physical jumpers on it for setting up the CPU. Find a copy of the manual for that board and it should have a chart to show what do do for that specific CPU.

thanks - been onto chaintech website & downloaded manuals for motherboard from id numbers - they don't appear to be identical so not sure if i've got id wrong or something else is amiss.
the main thing i did notice is that motherboards are specifying up to 466mhz - i'm trying to install 1200mhz - to me this may be the problem - i had assumed that any socket 370 celeron could be replaced with any other (very niave i know).
if someone could confirm this i will set about upgrading motherboard as well.
thanks for your help - i'm on a steep learning curve here!

you have to look at your jumpers and set them to waht cpu you will be putting in there and you have to find out if your motherboard can even go to that fast of a cpu. you may have to get a new mb. (tip get a new computer or build one lol) i have plenty of old computers that are fun to play around with.

you probably could get a new motherboard and cpu for like 120-150, and some ram for 50-100$, and use your current wires, hard drives, power, video cards., ethernet... case