Disable C1E and EIST also...

That's probably your mobo's temperature, either the southbridge or the northbridge, depending on what mobo you are using.

What mobo are you using? Does it come with a temperature monitoring program. You can use that to correlate the temperature readings to speedfan's reading.....

The temp2 shows your CPU temp. However, remember that the E6750 core temperature is still inaccurate (unresolved issue). You can use core temp 0.95.4 to measure the core temperature. Other temperature monitoring programs will show a core temp which is about 15'c lower.....

This post has been edited by kmarc: Sep 19 2007, 04:27 PM

Then you can use the Easytune5 to look at the CPU temp and the system temp. You will find that the CPU temp = temp2 and the system temp = temp1.

Again, there is the issue of which app is giving the correct temp for the E6750. Look at this thread for further info: http://forum.lowyat.net/topic/496060

For me, I'm relying on the Easytune5 CPU temp....

P.S. Don't use i-cool, as from my experience, if you're not careful, the CPU fan can sometimes stop spinning totally!!!

Nice OC. Must be very high vcore! What's your vcore and core temperature?

Nice OC. What's your vcore?

What application are you using to read the temperature? And is it at stock voltage?

Again, application reading of vcore is inaccurate. Since you're using the P35-DS3, you can try to use the easytune5, which also shows the vcore. For mine, I set 1.425v in BIOS but shows as 1.39v in easytune5.....

Errrr.... I'm staying in Kuching so the ambient is like 28-30'c. The core temperature is based on Easytune5's readings.

The problem with the E6x50 series CPUs is that the correct core temperature is not really known. I had opened a thread on this : http://forum.lowyat.net/topic/496060. However, up to now, I don't really know whether this is my true CPU temperature. Intel is not telling and even 3rd party software authors don't really know. The author of "core temp", like many sources, suggested adding 15'c to the core temperature but this is based on observations only and not on any concrete proof/information.

Why can't you change the vcore? The P35-DS3 can change the Vcore easily. Make sure you press the Ctrl+F1 when you're in the main bios page, before you go into the M.I.T page.

If easytune5 is already showing 60-64'c, then that's the limit you want to go. In general, the recommendation is to keep the temp below 60'c. You are using stock HSF right?

Ambient temperature is the surrounding temperature e.g. room temperature....

I'm curious, just download core temp version 0.95.4, and see what is your temperature. Don't get shocked if it is higher than that as the author has set the Tjunction to 100'c, making all temperature 15'c higher...... The problem is, which one to believe....

This post has been edited by kmarc: Oct 20 2007, 01:32 PM

CPUZ is not accurate for reading voltages, as with many software apps. Not to worry about the +12v voltages, mine indicating +2.33v.....

You sure it is not the E6750? My E6750 is only stable at 1.425v (bios) at 438x8 = 3.5Ghz......

Just ignore it. As long as you correctly set your voltages, that shouldn't be a problem..... it is the same with my DS3, any minor tweaking of the voltages will cause that message to appear....

What is your setup - rig and overclocking? Make sure your ram is not the cause by lowering the ram divider/speed to the lowest you can set (for now)......

Your rams are running at 1:1 ratio and I see your rams are DDR667. So if you put at 380mhz, the rams will run at 760mhz, which might be the reason why you couldn't OC higher. Go to bios, and set the ram ratio to 2.0. This way, you'll have more room to overclock....

Ouch. That means your OC is probably limited by the rams. 2 options - loosen the rams further (e.g. 6-6-6-18, but NOT recommended) or increase the Vdimm e.g. from 1.8v to 2.0v. However, playing with vdimm will increase the risk of damage. Make sure you have fans blowing on the rams....

Somebody said that all DDR2 rams are warrantied until 2.2v..... dunno true or not....

Maybe, but not because of different brands. It may be because of different overclocking capabilities. If you don't mind burning the rams, then you can increase the vdimm a bit and see..... from 1.8v to maybe 2.0v.....Again, all this is AT YOUR OWN RISK..... errr... maybe at your company's risk....

Errr..... better sort out your gf problem first la..... OC can come later....

This post has been edited by kmarc: Nov 1 2007, 07:44 PM

All E6750 are introduced as G0 stepping...... unless they came up with a new stepping...

If you set it at a higher vcore, definitely will be able to get past 3.5Ghz.

For my E6750, I had to set it to 1.425v in BIOS.

If higher vcore will also result in crashes, then it may be due to other components e.g. rams, mobo....

When stressing the CPU? You're using small FFT right? That will fail if your CPU OC is not stable....

Nice. Make sure your core temp is acceptable and the vcore is not too high....

Wah, so high aaa? It is generally advised to OC but keep your core temp around 60'c. However, some people don't mind going higher than that. So, it is entirely up to you.

Your vcore is set from BIOS? 1.46-1.48v should be ok. Again, the higher the vcore, the higher the risk of damage to the proc.