Problem after change processor

[GSKILL TECH]

Not even one will boot up?

Try DDR2-800 4-4-12 2.0V

[washingtondc]

with this config the system doesn't even starts.

[GSKILL TECH]

Use this guide to set up BIOS:

http://www.gskill.us/forum/showthread.php?t=1169

[washingtondc]

Latest bios is a beta version F9e. The configs in setup are default as you can see.

[GSKILL TECH]

Is that the latest BIOS? What settings did you input for the RAM? Maybe boost DRAM Voltage or MCH Core Voltage a little to see if that helps.

[washingtondc]

After I replace my core2duo by a core2quad q9550 my system restarts while playing a game. With core2duo it Works fine, but with the q9550 it restarts. Hope someone help me to solve the problem.

motherboard: GA-EP43-DS3L BIOS f8
Memory: 2x2GB f2-8500cl5d-4gbpq
Processor: Core 2 Quad q9550
Graphics: HD4850
Power: Corsair 450W