Mac Pro 3.1 2.8 GHz 4-core to 8-core upgrade... HELP!!!

[DJTEMPO7]

Hoping someone might be able to point me toward a solution...

I just took the dive, and installed a 2nd 4-core 2.8 GHz processor in my Mac Pro 3.1.

It's all put back together... but when I hit the power button... no "chime", (no death-tone, either), nothing on screen, the monitor doesn't awaken... nuthin. Zilch.

I was honestly expecting the death-tone and the Sad-Mac, but nothing... well, the fans are running.

Is there one of the famous "reset" buttons on the motherboard, somewhere that I haven't found yet?

My only hesitancy before I set off PULLING the new 4-core chip, is that something in the system has been tripped or set-off-kilter, and even going back to the basic 4-core state won't fix the problem.

Any thoughts, from anyone, would be greatly appreciated.

Chip Tredo
214-646-4906

 

[DJTEMPO7]

Reset button

Found the reset button on the motherboard, pressed it with the computer off, no difference.

Anyone have a chart for what these red LED's on the motherboard are all about?

 

[666sheep]

You've most likely bought CPU with wrong stepping. You need SLANT one (like stock is), not the SLBBN or QFUK (ES).

 

[NOTNlCE]

You've most likely bought CPU with wrong stepping. You need SLANT one (like stock is), not the SLBBN or QFUK (ES).

I agree, this would cause the problems you're describing. You for sure want a SLANT E5462 Xeon processor.