CPU overheating

[MIXEDD]

Hello, everybody! I'm new here .Well I have a problem with my PC, the CPU is overheating it's about 55 C at idle mode and 75 C at Max CPU usage.The PC gives me BSOD's because of the CPU overheat. I Had this problem before but i bought a new Thermal paste and installed it into my CPU. It has fixed the problem completely but after 3 weeks the CPU has began overheating again... Also, when the CPU is overheating and reaches about 65 C or more I hear a strange sound from the CPU or the Cooler i don't really know also I think it can be coming from the Video Card but it's not overheating at all.

My Hardware: CPU: Intel Core 2 Duo E4400 @ 2GHz
Motherboard: Intel DG33BU
RAM: 2.0GB Dual-Channel DDR2 @ 399MHz (5-5-5-18)
Graphics: ATI Radeon HD 2600 Pro (MSI)

Please help me , THANK YOU!

 

[magaman598]

You might wanna try and clean out the Heatsink and fan on the processor, that might be comepletely covered (Inside and out) with dust.

 

[MIXEDD]

Thanks but everything is fresh I had done this before.

 

[mailpup]

It might be that the heatsink fan is not developing enough speed (RPMs) to adequately cool the CPU. Perhaps you need a new fan or maybe it would be worth replacing the whole heatsink/fan assembly.

How is good is the cooling of the case?

 

[MIXEDD]

Thanks the case is good enough I think because the CPU was never overheating for 2 years. I'm starting to think that maybe the VCore voltage is to big. My CPU: Vcore voltage is : 1.325V. Also my BIOS is unable to change the Vcore voltage (BIOS fully updated).

 

[mailpup]

What about the possibility of the heatsink fan failing?

 

[MIXEDD]

Well I think it works fine because it spins fast enough.

 

[MIXEDD]

Okey I'm sorry because I think you're right The CPU Cooling Fan Runs at 980 RPM. I really think that it's extremely slow. Am I right? Thank you for your responses.

 

[mailpup]

Yes, that's too slow.

 

[MIXEDD]

So is there is away to speed it up safely? Or I need to buy a new one?

 

[mailpup]

You could check the BIOS in case there is a setting that set too low. Otherwise, I'd go for a new one.

 

[MIXEDD]

okey i'll try buying a new one thanks for your help.

 

[MIXEDD]

Ok I've bought a new Fan and the problem persists. I think that the problem is in BIOS but I can't change the Vcore Voltage also I can't even turn off the auto fan control. Could someone give me a suggestion what to do now?

 

[magaman598]

Did you happen the clean off the old Thermal compound before installing the new Heatsink?

 

[mailpup]

Bear with me on this elementary question but did you plug the fan into the 4 pin CPU fan header and not one of the other fan headers on the motherboard?

 

[MIXEDD]

Yes I had connected to the 4 pin CPU FAN connector. I had checked and it's connected fine and to the right place.

 

[seanc]

I've never seen an overheating processor cause a BSOD. If the processor was truly overheating, your PC would turn off.

I'd be more likely to suspect your RAM being incompatible/set at the wrong speed on your motherboard. Intel boards are finicky about RAM, I dislike them.

 

[MIXEDD]

Memtest86 has reported errors on one of my RAM stick's so I soon will change it. Thank you.