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>>The Official ASUS P8P67/P8Z68 & P8Z68/GEN3 Series Owners Club>> - Page 646

post #6451 of 9343
Quote:
Originally Posted by R.D.BID View Post

Ok, thanks for the input. Any idea why there is so much discrepancy between the two?

Since Core2 duos, I think, anyway since there have been multiple cores, temperatures have not been measured directly, but inferred from DTS sensors. DTS sensors don't actually read temperature, but measure distance to throttling. Throttling is assumed to match tjmax, and all lower temperatures are inferred from a gradient which gives "temps" that are least accurate at idle and can be 10c out. Core temps are therefore just an approximate guide, and most accurate at high temps.

Your actual cpu temp (as opposed to core temp) might be more accurate, but I'm not even sure proper temperature sensors are used.

ChickenInferno wrote a good thread on this, for those interested enough.

The Truth about Temperatures and Voltages
Quote:
Intel has stated that the DTS sensors are designed for Throttling and Shutdown protection, are more accurate at very high temperatures, become unreliable below 50c, and should be disregarded at Idle. Intel has also stated that Tjunction Max values vary between individual cores, and have a "range" or target value that can be as much as +/- 10c due to variables such as sensor "slope" error, which is especially pronounced on 45nm parts. This highlights the reason why Tjunction Max Values are rounded to the nearest 5c, such as 85c or 100c, while Tcase Max values are instead precise numbers to the tenths of a degree, such as the Q6600 B3 at 62.2c
http://www.tomshardware.com/forum/250157-29-q6600-tjmax-right

Big difference between Tcase and Tj Max remember too.
Edited by alancsalt - 2/15/12 at 8:05pm
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post #6452 of 9343
Quote:
Originally Posted by R.D.BID View Post

Ok, thanks for the input. Any idea why there is so much discrepancy between the two?

FanXpert is using the bios readings. I do not know why but all of the software driven sensors read about 10c higher than in your bios. This is not just with Asus boards but was also the same with my Gigabyte board. I was using an e84oo with the Gigabyte and those chips are notorious for having bad sensors. It would never read anything below 44c in real temp and other software. In fact some software upgrades had a 15c offset option so you could match what your bios reads.

Right now core temp is showing me running at 27c but when I reboot the bios shows me 19c.
post #6453 of 9343
When can I be in the club?
post #6454 of 9343
Has anyone been able to get SpeedFan to control the fans on any of the P8Z68 mobos? I know that they are not in the list of supported boards, but just wanted to check to see if anyone has been able to get it to work. SpeedFan works fine controlling my GPU fan (HD6950), but I wanted to have it control all of the fans (the ones that are able to be controlled, of course smile.gif).
post #6455 of 9343
Quote:
Originally Posted by Mercyflush64 View Post

FanXpert is using the bios readings. I do not know why but all of the software driven sensors read about 10c higher than in your bios. This is not just with Asus boards but was also the same with my Gigabyte board. I was using an e84oo with the Gigabyte and those chips are notorious for having bad sensors. It would never read anything below 44c in real temp and other software. In fact some software upgrades had a 15c offset option so you could match what your bios reads.
Right now core temp is showing me running at 27c but when I reboot the bios shows me 19c.

Ever since I flashed to 0902 my BIOS has been reading CPU temps 10 degrees lower than they actually are. This is a pain cause I need FanXpert to change CPU fan RPMs accordingly and so I had to set a custom fan profile. Really wish they would fix this.
Edited by MercurySteam - 2/17/12 at 6:42pm
post #6456 of 9343
Can I be part of the club too (Asus Z68 Pro/Gen3)? biggrin.gif

6892322759_9d0f08de5b_b.jpg
Phantom (12) by Roque Images, on Flickr

Now time to read and learn how to OC this bad boy because I've never overclocked before in my life!
post #6457 of 9343
Quote:
Originally Posted by Montagar View Post

Has anyone been able to get SpeedFan to control the fans on any of the P8Z68 mobos? I know that they are not in the list of supported boards, but just wanted to check to see if anyone has been able to get it to work. SpeedFan works fine controlling my GPU fan (HD6950), but I wanted to have it control all of the fans (the ones that are able to be controlled, of course smile.gif).

I tried to get it to work, but it did not seem to do anything.
post #6458 of 9343
I'm in....working on OC my i7 and getting the proper tests....trying to get over the 5ghz hump....proving ot be a little more difficult!
post #6459 of 9343
Quote:
Originally Posted by Rothe31 View Post

I'm in....working on OC my i7 and getting the proper tests....trying to get over the 5ghz hump....proving ot be a little more difficult!


I hit 4.7 easily with my i5. 4.8 was not too bad, and 4.9 was a bit of a challenge. I spent quite a long time getting 5.0 and when I did figure 5.0 out, I also nailed 5.1 and 5.2 (but the 5.1 and 5.2 ran too hot to be useful to me).

 

It's strange sometimes. I thought for sure that I had hit a wall at 4.9 and that I'd never even get into Windows at 5.0. But then I was looking at my voltages and thinking that I had plenty of headroom left and that it should be possible. I made a few extremely minor tweaks and suddenly it was a breakthrough.

 

Overclocking sure is strange sometimes! What sort of voltages are you at?

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post #6460 of 9343
was reading through my manual(p8z68-V pro gen 3) while waiting for my psu to arrive and was just wondering if theres any difference in the auto overclock between using ai suite or the tpu switch? what method is better im only looking for a very mild clock increase(~4.3ghz)
 
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