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post #7031 of 9343
I'm using real Temp. But ASUS Suite looks different. Which one is true?

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post #7032 of 9343
Quote:
Originally Posted by DJ_OXyGeNe_8 View Post

I'm using real Temp. But ASUS Suite looks different. Which one is true?

Neither. Both are approximations.

The boring reason why is in the way temperatures are "measured". Since core duo days there is no direct temp measurement. The dts sensors measure distance to throttling, not temp, and throttling is assumed to be TJmax. Everything below that is taken from an assumed temperature gradient that can be very inaccurate at idle. Temps under load are going to be more accurate. Until they "measure" temps differently, we're stuck with that.

That's my understanding of Unclewebb's explanation. He wrote Realtemp.
Quote:
Intel never intended the DTS sensors to provide us with accurate temps, we can obviously read the data from them but the data they provide is to let us know how close the proc is getting to thermal shutdown. So they are mainly for fan speed control, and alerting of catastrophic cooling failure. But it is still nice to get a semi-accurate core temp to give us a decent idea how hot our procs are getting when we are trying to squeeze every little oz of Mhz from them
http://www.xtremesystems.org/forums/showthread.php?179044-Real-Temp-New-temp-program-for-Intel-Core-processors&p=2812536&viewfull=1#post2812536
Quote:
Quote:
Originally Posted by clicker666 View Post
... the TjMax may vary from processor to processor, is this correct?
There is nothing to prove that this is true or false at the moment. Personally I believe that TjMax is standardized across a process line so that all E8x00 dual core desktop processors with a CPUID of 0x10676 all use the same TjMax=95C. That assumption is what RealTemp is based on.

I think that if the factory is making 95C processors then each and every one is calibrated so that DTS=0 right at TjMax=95C. All of the 65nm mobile chips are documented to have a TjMax exactly equal to 100C and the new 45nm mobile chips are all set to exactly TjMax=105C so it doesn't make any sense to me that Intel would set all of the mobile chips to a fixed value but set all of the desktop chips to random TjMax values.

The (++) (--) feature is wide open to variables. For me, since the output from the DTS does not seem to be linear across the entire temperature range of the CPU, it provides me with the only way to make adjustments to idle temperatures to bring them more in line with measured temperatures as outlined in post#1. Without this adjustment, air cooled L2 processors either idle below ambient temperature which is impossible or you can use a TjMax=100C to cover up that problem and end up with them reporting that they are running far hotter than all of the other available Core2Duo processors. Neither solution is correct.

The Idle Calibration feature is just an approximation. It will never completely compensate for a DTS sensor that doesn't seem 100% accurate across the entire temperature operating range. It would be nice if a few users would try to calibrate as outlined in post #1 and report their findings. For me, my E6400 B2 needs a ++ calibration to keep it from reporting below ambient temperatures and my E8400 needs a -- calibration to bring it in line with my E6400. My CoreTemp testing which showed a 25C difference in idle temps between these two processors at the exact same core voltage, MHz and room temperature just doesn't make any sense. Real Temp idle readings should be within a degree or two now for these processors when calibrated.

http://www.xtremesystems.org/forums/showthread.php?179044-Real-Temp-New-temp-program-for-Intel-Core-processors&p=2816252&viewfull=1#post2816252

That thread is all about real temp and temp measurement. A big read, but lets us know that truly accurate temp readings just aren't there, especially at idle.
Edited by alancsalt - 4/21/12 at 4:11am
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post #7033 of 9343
Thankyou all, I have reset my auto tune to stock clock in Bios and pushed manually to 4.4 with 44x Multiplier with 1.29v, running fine; idle at 33C (30C ambient) and 60s on Stress test. I have tried with 1.3 and 45x, booting to windows but crashed on Intel Burn Test. I have not changed any bios defaults other than these vCore and multiplier. Shoud i go for some more tweaks to get past 45x? is it worth taking risk to increase vCore? or just stay at sweet 4.4? what you think>?
post #7034 of 9343
for normal gaming/day to day use, 4.5 ghz is more than enough. if you are not doing any cpu heavy tasks, just set it at 4.5 ghz and work on your stability and temperature biggrin.gif
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Yep, Aeris died
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post #7035 of 9343
Quote:
Originally Posted by Nethermir View Post

for normal gaming/day to day use, 4.5 ghz is more than enough. if you are not doing any cpu heavy tasks, just set it at 4.5 ghz and work on your stability and temperature biggrin.gif

Saying that a few years ago would have sound completely preposterous xD
Edited by Alex132 - 4/24/12 at 9:36am
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post #7036 of 9343
Quote:
Originally Posted by Tradio View Post

is it possible to use INTEL QUICK SYNC encoding while having a discrete GPU installed on the P8Z68-V PRO? If so, can someone please post instructions/link on how to exactly enable that
My understanding as is that Quick Sync is only available when using the onboard GPU but I also read that the z68 boards support Quick Sync when a GPU is installed. Is this true?

Just download and install the latest Virtu Software: http://www.lucidlogix.com/driverdownloads-virtu.html
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post #7037 of 9343
Hey everyone,
I have 4 ASUS P8Z68-V Pro non-GEN3 motherboards that overclock flawlessly (BIOS 3203). However, I just got a P8Z68-V Pro/GEN3 motherboard and it won't overclock, though the DRAM overclocks fine and the Vcore adjustments stick, just any overclocks do not. Could it just be the motherboard? BIOS = 3202.
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post #7038 of 9343
Can I join the club?
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post #7039 of 9343
hi i have a p8z68 - v/gen3

every morning when i wake up and turn on my comp it shows the windows flag for a split second then blue screen for a split second and goes back to the asus splash screen

how do i fix this?

ive run prime for 4 hours with my settings but it still seems to be unstable in the morning?

it looks like this

ASUS P8P67 series Double POST at Cold Boot Fix

Quote:
Originally Posted by Mason@ASUS;4712067
Some of you may have been experiencing a double POST on your P8P67 series motherboard whereupon after powering on the system from a cold boot, the board will power on and then immediately reset itself before it actually POSTs and shows any display on the screen. I’ll explain the fix below and give some information about why this happens.

First, I would like to stress the importance of flashing the BIOS to the latest BIOS revision as listed on our support website, http://support.asus.com/download. You can access the ASUS EZ Flash tool from within the UEFI (advanced options, tools) to flash the BIOS from any removable device such as a USB flash drive.
From time to time we needed to implement full resets in order to maintain stability due to the architecture of the Sandy Bridge platform. For instance, the system may require one full reset when the PCH power has been cut during S5 power state. To fix the most common additional reset (double POST when powering on from off state), enter UEFI BIOS -> go to ‘Advanced’ tab -> go down to ‘APM’, press Enter -> enable the “Power on by PCIe.” function. Then press F10 to save & exit. After save & exit, let the system boot into Windows or other OS, then perform a proper shutdown: Start button -> Shut down. You will no longer have the double POST. We will fix this in an upcoming BIOS release.
Edited by exzited - 4/24/12 at 11:25pm
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post #7040 of 9343
Thats happening with my Z68 board and I did as you said with no luck mad.gif
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