Is this normal?

[bigjon32]

I've got my 4200 x2 at 2640 right now (240*11) and stable, but at any higher at all it won't boot to windows. I tried lowering the RAM speed in the bios to 200 mhz but it still wouldn't boot into Windows. Its staying in the high 30s according to the Abit uGuru and the same in the bios while idle and in the high 40s under load, 2x Orthos. Is it normal to just hit a wall this low on these chips? I wanted to see if I could hit 3 ghz (even if not too stable, just to see it) .

CPU-Z: http://valid.x86-secret.com/show_oc?id=174349

 

[forrehmmnd]

ure not even gonna dream about 3 ghz, i could barely get my 4400 + to that speed and it was stable so i had to back it off. unless by some act of god im pretty sure without the brisbane core ure prolly wont hit 3 ghz

 

[bigjon32]

ure not even gonna dream about 3 ghz, i could barely get my 4400 + to that speed and it was stable so i had to back it off. unless by some act of god im pretty sure without the brisbane core ure prolly wont hit 3 ghz

I thought that the only difference between the 4400+ and the 4200+ was the L2 Cache, not the clock speed. I just thought it was odd that it just goes from being stable to not booting into Windows any higher. I already bumped the voltage up to 1.375, and didn't want to take it too much higher without any input.