rabidgecko

Hey all,

So, my current CPU has been a bit wonky ever since I had it. It would randomly freeze up and give a fantastic green screen of death every once in a while. But it worked fine, other than that one annoying habit. Anyways, I finally set aside some time to get a new CPU to replace the current one. I'll post the relevant specs and issue below:

Current CPU: AMD Athlon 64 X2 5000+ (black box)
Mobo: Gigabyte GA-M61P-S3

Replacement CPU: AMD Athlon 62 X2 7750 (black box)
same mobo

I took out the current CPU and installed the replacement. Usually, with the current CPU, the system gives a happy 'beep' about 5 seconds after power up (this I guess is what you guys call 'post' or something?). But didn't hear any beep this time, and the monitor was blank. I made sure before I powered up that I had installed everything correctly. I put enough Arctic Silver on the CPU, the heatsink/fan was on correctly and the fan's power was connected. The fan on the heatsink worked when the system was powered up. So what gives?

I took out the replacement CPU and installed it again. Same deal. No 'beep' and nothing on the monitor. I even grabbed the monitor from the other computer to see if it was the GPU or something, but still nothing.

SO I took out the replacement CPU, after two (what I thought were proper installations) and put back in the current CPU. The system works.

What are your guesses as to my problem? Is it just a defective CPU? (I can't see anything physically wrong with the CPU. all pins are straight.) Is there some compatibility issue between the CPU and mobo? Does it sound like I did something wrong?

Cheers,
rabidgecko