Is my cpu dead?

yes i cleared it. the board i think is dead is gigabyte GA-7NF-RZ
THE OLD motherboad i used to test the 333 cpu (2600+ 2.083 ghz) is
soyo SY-K7VEM Pro (not v1.0) its an old mb i use for back up it has an 800 duron with pc100 512mb ram.

i put in the fried mobile 1500+ in the soyo and i read that it dont support tbreds so i thought maybe i should just try it in my pc ( big mistake) and it didnt boot so i said oh well i knew it was fried neways so i put back my 2600+ and nothing so i check for anything pulled by mistake nothing so then i clear cmos nothing and then i thought it was the cpu so i put the duron in it and nothing so i knew then the mb died. then i put the 2600+ in the soyo and nothing but i read that you cant put 333 fsb cpus in 266 boards and its not even 266 its 200 because the ram is pc 100 im hoping thats the case and my cpu is fine so i can just replace the mb thanks for your intrest and sorry for being long jsut wanted to let you know what i did so you get what i did and what i did wrong and if im missing something all ram and stuff are fine i just thing the board died and my big ? is that is there a chance my cpu lives or not i took it to a friend and he thinks its okay nothing wrong with the cpu what you think form what i told you.
and im using the duron 800 and soyo board as right now so there working but that wierd why did my gigabyte die and not the soyo if i put in the 1500+ first in the soyo then the gigabyte?
 >> Stay informed about: Is my cpu dead? 

let's pretend we have a new build. when you put the 2600 back in the gigabyte, what happened. did the cpu fan spin up, any beeps?

i check back in about 6 hrs.


ud
 >> Stay informed about: Is my cpu dead? 

i put in the 2600 and turn it on no beeps fan spining and lights on like normal but no post. this same thing happend to me before with the same 800 duron and a cheap amproni checked everything so it was ethier the board or the cpu so it was the board. but my question is if i buy a new board will my 2600 work or not work i dont have an other 333fsb and im afraid if i buy one it wont work and miss up the new board thanks for your responese
 >> Stay informed about: Is my cpu dead? 

try booting with just the cpu, hs/fan, vid card and 1 stick of ram. i wouldn''t rule out the psu. if you can get hold of a digital multimeter and check the readings on a molex connection.

ud
 >> Stay informed about: Is my cpu dead? 

oh wow!!!!!!!!!!! it worked with my duron 800 i did what you said and it posted wow i cant believe it i have no clue what i did wrong the first 5 times i tryed to boot it. Iguess i was to nervous and scared cuz my baby was dead but today i just put in an old 128 pc2100 and a 800 duron and my video card and it booted thanks alot i kept saying it was died but you kept saying advice thanks alot you just saved me 50 bucks now lets see if my 2600+ works.my mb worked with the 800 duron

++
<--- crossing fingers
oh and what is the molex so i now what to check and why do you check the molex i have a digtal mutimeter
 >> Stay informed about: Is my cpu dead? 

check the 12v line. it's the yellow wire and either black one. you want a reading at the very least[u] of 11.5v and that's not good either.

always remember to plug the the psu back in. that will stop your heart too when the you hit the case start button and nothing happens.


ud
 >> Stay informed about: Is my cpu dead?