Is this too hot for a Core 2 Duo?

[Shawn]

Got the new cooler today. OCed to 2.5Ghz again and ran Prime95 for an hour and the max temperature I saw was 57C. It's idling right now at 45C. I tried a bus speed of 400 but the computer won't post. I think it's my ram. I just bought some new PC 800 Cosair ram off newegg so hopefully that'll let me overclock further.

edit: Those numbers aren't really accurate since I had the case open. I closed the case and its running a little hotter now. 51C at idle, 63C on load. I guess that's ok.

 

[Shawn]

Ok, I dunno WTF is going on now, but I shut down my computer and when I tried to boot back up it wouldn't POST. I had to reset the CMOS to get it to POST. However, now it no longer refuses to boot with any other speed than stock. Even if I bump it up a little bit it refuses to POST. I tried bumping up the voltages too. No luck. WTF is going on?

 

[Shawn]

I got it working now after increasing the (G)MCH voltage to +.1. I dunno why it worked at stock voltage before though. The northbridge is getting really freaking hot so I put an old 586 cpu cooler on it. Hopefully that'll keep the temps down.

 

[craftech]

Shawn,

With 65nm 1066Mhz chips being phased out, what will you do if you burn it up? With few suitable replacements available anymore you will have to get a new motherboard, new CPU, and possibly new memory. Maybe overclocking it isn't worth it.

John

 

[Shawn]

The motherboard supports 1333Mhz chips.