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The Truth about Temperatures and Voltages - Page 32

post #311 of 599
Quote:
Originally Posted by FSF-Foxhound View Post
@1
I was saying 1.36 is usually the maximum stock VID, not the maximum voltage.

@2 oh really? dang. :C
The VID Voltage Range for almost every 45nm Core2 is 0.85V - 1.3625V. To be honest, I don't know how this information is useful to anyone. I guess I never tried to find out.
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post #312 of 599
Quote:
Originally Posted by TwoCables View Post
The VID Voltage Range for almost every 45nm Core2 is 0.85V - 1.3625V. To be honest, I don't know how this information is useful to anyone. I guess I never tried to find out.
Well, iirc you can receive a chip that has VID states ranging from 0.85 to 1.3625V. Eg. E8400 stock, no Speedstep/C states = 1.20V. E8400 with speedstep on @ 2GHz = 1.15V. E8400 with C states on @ C7 state = 0.90V.

If Intel gets a chip with a VID over 1.3625V, they probably won't sell it to the general public. (maybe even recycle/destroy it)

VID states seem to be Voltages for each "state" the processor is in for it to be 100 percent stable. I don't have a source, but isn't VID Voltage Identification... De... da... uh I don't know. What does it stand for?

that seems to be from what I understand.. correct me If I'm wrong though.
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post #313 of 599
Quote:
Originally Posted by FSF-Foxhound View Post
Well, iirc you can receive a chip that has VID states ranging from 0.85 to 1.3625V. Eg. E8400 stock, no Speedstep/C states = 1.20V. E8400 with speedstep on @ 2GHz = 1.15V. E8400 with C states on @ C7 state = 0.90V.

If Intel gets a chip with a VID over 1.3625V, they probably won't sell it to the general public. (maybe even recycle/destroy it)

VID states seem to be Voltages for each "state" the processor is in for it to be 100 percent stable. I don't have a source, but isn't VID Voltage Identification... De... da... uh I don't know. What does it stand for?

that seems to be from what I understand.. correct me If I'm wrong though.
From what I have been told, the VID is the voltage that the CPU requests from the motherboard when the voltage is set to Auto. I have not tested this because I'm not interested in using Auto. I love my overclock too much to tinker with it.

So, if the VID of your CPU is 1.3625V, then it might request 1.3625V at 100% stock.
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post #314 of 599
Thread Starter 
Quote:
Originally Posted by aznofazns View Post
UPDATE:

Crap. With BIOS vcore set to 1.50v, LLC on, C1E and Speedstep off, I get 1.472v idle and 1.488v load. After Sleep resume, I get 1.440v idle and INSTANT CRASH under Prime load. I'm assuming it crashes because vdroop kicks in and bring the voltage down below 1.400v, DESPITE LLC being enabled. This is getting really worrisome.
Best answer is to disable sleep mode as then you should never recieve this droop. I've never actually seen LLC just seem to give out when someone goes into Sleep mode.

Quote:
Originally Posted by FSF-Foxhound View Post
Well, iirc you can receive a chip that has VID states ranging from 0.85 to 1.3625V. Eg. E8400 stock, no Speedstep/C states = 1.20V. E8400 with speedstep on @ 2GHz = 1.15V. E8400 with C states on @ C7 state = 0.90V.

If Intel gets a chip with a VID over 1.3625V, they probably won't sell it to the general public. (maybe even recycle/destroy it)

VID states seem to be Voltages for each "state" the processor is in for it to be 100 percent stable. I don't have a source, but isn't VID Voltage Identification... De... da... uh I don't know. What does it stand for?

that seems to be from what I understand.. correct me If I'm wrong though.
I'm still reading up on VID, but as I understand it you are on the right track with the C States and each having their own VID, but the voltage commonly called VID on this forum is the VID of the 100% speed C State. BTW literally VID means Voltage IDentifcation
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post #315 of 599
um why not just use speed fan? just turn the fan control in it off and then just use it as a temp report system? works well for me gives me the on and off die temps my case temps my board temps ram temps gpu temps, basically if its connected to the computer and it can display the temp it does it
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post #316 of 599
Quote:
Originally Posted by ChickenInferno View Post
Best answer is to disable sleep mode as then you should never recieve this droop. I've never actually seen LLC just seem to give out when someone goes into Sleep mode.
Well, the voltage drops regardless of LLC. Even with it off, vcore is lower after Sleep/Hibernate. I guess i'll just have to do a full shutdown every time I'm done using my PC.
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post #317 of 599
Quote:
Originally Posted by aznofazns View Post
Well, the voltage drops regardless of LLC. Even with it off, vcore is lower after Sleep/Hibernate. I guess i'll just have to do a full shutdown every time I'm done using my PC.
Sleep/Hibernation is only truly beneficial for laptops. But if you use your rig every single day, then it's best to leave it on 24/7 without using anything like Sleep, or having the HDDs turn off automatically. But I do recommend having the monitor turn off automatically after an hour or 2.

Here's why: when you turn your system on, it goes from being cold to being warm/hot. When you turn it off, it goes from being warm/hot to being cold again. If the system has to go through this warm-up/cool-down cycle every single day, then it's similar to keeping something out in the garage vs. inside the house. It's much harder on something to have to warm up and cool down every day than it is for it to stay at the same temperature all the time. So, a system would last longer being left on 24/7 vs. turning it on and off every day.

It's like an incandescent light bulb: if you turn it on and off every single day, it will not last as long as it would if you just left it on 24/7. That's why it has the "up to xxxx hours" instead of stating exactly how many hours it will last.

I used to turn my computer off every time I was done with it until I learned this, but now I just leave it on 24/7, and the only thing that gets turned off is my monitor. I have it turn off after 2 hours because I know that if I haven't used my computer for over an hour and a half, then the chances of me coming back to it within several hours are pretty small. But if I come back to it before the 2 hours are up, then the chances are good that I am not done using my computer yet. This way, my monitor isn't turning off and on too much, but instead it's turned off 2 hours after I am finally done using my computer. In addition to that, I have the screensaver set to come on after 10 minutes.

So, there ya go.
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post #318 of 599
That's quite an interesting take you have... and it makes sense, except for the fact that there is constant voltage running through your components. Wouldn't that be taxing on system life as well?
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post #319 of 599
Thread Starter 
The components are designed to run that voltage indefinitly and as long as it is perfectly stable, it shouldn't degrade.
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post #320 of 599
Quote:
Originally Posted by aznofazns View Post
That's quite an interesting take you have... and it makes sense, except for the fact that there is constant voltage running through your components. Wouldn't that be taxing on system life as well?
If you have to use 1.56V to achieve the necessary voltage for stability, then that's safer than having the voltage be at 1.56V under full load.

In other words: an idle voltage is relatively harmless compared to an equal voltage while under load. And with high voltages nearing the maximum, the importance of allowing vDroop to do its job is even greater due to those dangerous micro-second voltage spikes that happen every single time the CPU is utilized (even when clicking the Start menu).

So, if I needed to have an idle voltage of 1.46 on my 45nm Core2 in order to achieve like 1.40V for stability, then that would be fine because it's only idling at 1.46V; it's not under full load at 1.46V.

This was difficult to explain, so if you need me to explain it again, then please tell me. I really don't like being unclear.
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