E8400 running hot

[Tip3r]

I just changed my CPU last night and installed a e8400.I was initially having trouble getting the fan+heatsink in place. When I turned on the PC, the temp went up to over 100C in no time and it shut down. I thought the heatsink must not be attached firmly and I tried reattaching it but it didn't help. I tried using the fan+heatsink for my last CPU (Pentium D 945) and it didn't help. The interesting think was that the temperature for one of my cores kept on jumping to -27C and back to 100C (as if the sensor was bad). When I touched the heatsink it didn't feel really hot. I searched and found this. So I wiped the CPU and heatsink clean and applied some paste, I also unscrewed my motherboard this time to make sure that the heatsink is connected properly. After I put everything back I got about 52 for each of the cores (similar to the link I've posted). So I launched NBA 2k9 to see how the temperature would change and each of the cores went up to about 65C and CPU was about 68-69C but it would go over 70C (max 74C) every once in a while.
Intel puts the thermal specification for e8400 72.4C.
The room temperature is slightly over 30C. I know my last CPU ran hot too but I can't remember how hot.

what should I do?
I can't RMA it.

Would buying a CPU cooler help? I know that the stock fan+heatsink aren't anything special but I'm sure it should be able to do better than this.

Could it possibly be a problem with the sensors? If that's the case I guess I could just leave it as it is, right? I might be able to connect a thermocouple to it but I won't be able to get a hold of it for another couple of days.

I disabled C1E in the bios would that have an effect on it? Of course the first time it got hot I had C1E enabled.
BTW, I haven't overclocked either.

This is my system:
Asus P5B deluxe/WiFi
E8400
6GB of ram (2x1GB kingston DDR2-667 + 2x2GB Patriot DDR2-800)
XFX GeFOrce GTS 250

 

[Tip3r]

Any ideas? Anyone?

How much damage will this do to my CPU?
I'm only using the PC for web browsing until I come up with a solution. The core temp is about 53-54C.
Could this just be happening because of the hot whether?

 

[nevbie]

Does your P5B have BIOS recent enough to support the E8400? http://support.asus.com/cpusup...iFi-AP&product=1&os=24

 

[jaggerwild]

those are stock temps for a stock HSF, the CPU will shut down when the temps get too high. Where are you getting the temp readings from what program? Try real temp?
http://www.techpowerup.com/dow...25/Real_Temp_3.00.html

 

[Tip3r]

I updated the bios before buying the CPU. I can't remember getting a message saying update successful or anything. I get the right version listed in the system information though.

I tried several programs and real temp was one of them. I also ran a test with prime95 and I got 74C on the cores at 100%. It didn't shut down though.
The only time it shut down was right after I installed the CPU and I'm pretty sure that the heatsink wasn't properly installed.

Will buying a cooler help? If so, what brand should I go for. I really have no idea what these coolers are and how they work. I've always used the stock fan+heatsink.

 

[Grinja]

Originally posted by: Tip3r
Will buying a cooler help? If so, what brand should I go for. I really have no idea what these coolers are and how they work. I've always used the stock fan+heatsink.

When I moved to a Thermalright Ultra 120 my temps dropped by around 12 degrees celcius.
I'm using a E6750@3.2Ghz
I also found it easier (despite the size) to install the cooler over the stock's push pin setup.

I'm not sure which coolers are decent now days ... the last time I looked at aftermarket coolers was over a year ago.