Dead CPU?

[tigerf117 10+ year member]

First step in troubleshooting, before replacing anything is to see if you can get the computer to fail a POST. i.e.take out everything but motherboard, cpu, and power supply. If it still hangs prePOST (fans spinning at 100% but does not get to the POST) its going to be either motherboard CPU or Power supply. Next, try a different power supply making sure all connectors are plugged in (i have forgot to plug in the 4pin auxilliary and its done the same thing).

Now after using a different power supply it still does the same thing. Switch boards and go back to the original power supply. (I would do this on a table so you don't risk shorting something on the case be repeatedly switching out mobos). If it does the same thing, again switch power supplies. If it still does the same thing, then you can be pretty sure its the cPU.

2 different boards, 2 different PSUs, all the same results it has to be the CPU at that point. BTW, there ARE pins on LGA775, but they are on the mobo side, and they CAN be bent (I have seen it happen - not by me personally but by a "smart" customer)

I know you've pretty much done that, but I would recommend doing it all in that order from square one. After all that, a lot of tech shops will test a CPU for free. Also, visually inspect all capacitors for leakage. Has this CPU been overclocked at all? It puts a lot of stress on cheap boards and can cause them to fail. Killing those chips by overclocking is very very difficult unless you are throwing insane voltages at them (1.6+).

 

[Digital Designs 10+ year member]

First step in troubleshooting, before replacing anything is to see if you can get the computer to fail a POST. i.e.take out everything but motherboard, cpu, and power supply. If it still hangs prePOST (fans spinning at 100% but does not get to the POST) its going to be either motherboard CPU or Power supply. Next, try a different power supply making sure all connectors are plugged in (i have forgot to plug in the 4pin auxilliary and its done the same thing).
Now after using a different power supply it still does the same thing. Switch boards and go back to the original power supply. (I would do this on a table so you don't risk shorting something on the case be repeatedly switching out mobos). If it does the same thing, again switch power supplies. If it still does the same thing, then you can be pretty sure its the cPU.

2 different boards, 2 different PSUs, all the same results it has to be the CPU at that point. BTW, there ARE pins on LGA775, but they are on the mobo side, and they CAN be bent (I have seen it happen - not by me personally but by a "smart" customer)

I know you've pretty much done that, but I would recommend doing it all in that order from square one. After all that, a lot of tech shops will test a CPU for free. Also, visually inspect all capacitors for leakage. Has this CPU been overclocked at all? It puts a lot of stress on cheap boards and can cause them to fail. Killing those chips by overclocking is very very difficult unless you are throwing insane voltages at them (1.6+).

I have done all of this, and I did it outside of the case on a static bag so I know nothing is shorting out. Yes I had it overclocked on the old board but not much, only about 300mhz. I did not get a chance to overclock with the new board since it wouldnt post. I know there are pins on the motherboard, I never said there werent. I said there arent pins on the CPU. Cosmetically, the CPU looks perfectly fine. I think while removing the CPU I might have fried it with static electricity or something along those lines. If it isnt the CPU then I am officially stumped. Maybe after my EBay money gets the hold taken off of it, I will order a cheap processor like an e5200 or something. Thanks for trying, tiger. I appreciate you taking your time to reply.

 

[Digital Designs 10+ year member]

Troubleshooting sucks.