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post #41 of 72

I'd rather have Unclewebb answer these questions.  I didn't have these questions, so I don't know the answers.  I guess I made the assumption that what he said would speak for itself.

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post #42 of 72
Quote:
Originally Posted by Forceman View Post

He seems to imply that running the chip at 1600 MHz is somehow preventing the chip from going into C6, and that running an offset is also preventing the chip from going to C6. But I am doing both of those things and my chip is in C3 and C6 a lot. So I'm not sure his argument hangs together. It applies for guys who disable C3 and C6, I guess, but that's really only recommended when someone has a problem in offset mode (in which case it may be better to run a fixed voltage with C3/C6 enabled). But there is no reason why you shouldn't run offset, power saving enabled, and C3/C6 enabled all at the same time, as long as it works.

For example:
If Intel put so much thought into it, then why do they make the chip idle down to 1600? The stock out of the box behavior is basically offset/all power saving enabled/C3C6 enabled. Which is kind of what he is saying don't do.

I think he needs to be clearer that what he is advocating is leaving C3/C6 enabled even if it means running a fixed voltage instead of offset (in case of problems). I don't see what the multiplier has to do with anything.

This part also makes no sense:
No one is forcing their chip to run at 1600 all the time, that's crazy. The chip will always speed up to do the calculation, no matter what the idle behavior is.

really interesting discussions going on here. keep in mind that i am nowhere near being a guru, i don't even know what c6 exactly is.
i do agree with your statements, it makes sense to me.

i do use offset voltage mode, +0.025, all power savings enabled, 3570k cpu is running at 4.5ghz under load, and at 1600ghz when idling.

will it gonna be more efficient if i set it set it to fixed clockspeed and fixed voltage? correct me if i'm wrong but i really don't think so.
post #43 of 72
Thread Starter 
Hm interesting. I'll just leave the power settings at balanced for the time being. XD

Alright, so I just figured out how to change my multipliers in the BIOS for Turbo Boost. I set them all to 44 and booted up. Now, I'm going to run IBT (on Maximum) and Prime95.

I actually ran IBT for like 10 seconds and my temperature shot up pretty high (some cores went to around 80-86F) past the TJ Max or whatever that thing is. During those 10 seconds or so my CPU VTT was 1.068V and CPU Vcore was 1.308V.

I also just ran Prime95 for like 20 seconds (I know that isn't enough to get a good reading, lol) and the temperatures ranged from 68-75. I'm kind of worried about running IBT for 10 runs when my CPU gets to around 86C. Is it safe to do that?
Edited by Ophaq - 2/16/13 at 10:04am
post #44 of 72
That's a little high, but it is still safe for a 3570K. As long as you keep it in the 80s under Prime you are okay, although obviously lower is better. TJMax is 105C for that chip, so even 85C is a nice margin away.
post #45 of 72
Thread Starter 
Quote:
Originally Posted by Forceman View Post

That's a little high, but it is still safe for a 3570K. As long as you keep it in the 80s under Prime you are okay, although obviously lower is better. TJMax is 105C for that chip, so even 85C is a nice margin away.
Alright, thanks I'll try running 10 passes of IBT then at the 84-87C margin. When I'm in IBT, the TJ Max is at 70C or so and not 105C but the CPU doesn't throttle.

Oh yeah, I live in a hot state so even though it's probably around 75F now, the temperatures in the Summer can reach 85-90F. I don't know what my ambient temperatures are, but wouldn't the CPU get a lot hotter than in the Winter even though it's liquid cooled?
Edited by Ophaq - 2/16/13 at 10:25am
post #46 of 72
Quote:
Originally Posted by Ophaq View Post

When I'm in IBT, the TJ Max is at 70C or so and not 105C but the CPU doesn't throttle.

I didn't realize IBT showed a TJ Max. In any case, it's wrong, the TJ Max is definitely 105C.
post #47 of 72

Does the Tj. Max displayed by IBT fluctuate at all?

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post #48 of 72
Thread Starter 
Oops my bad. I meant the TJ Max in RealTemp. XD
IBT doesn't have one as far as I'm concerned. The TJ Max in RealTemp does fluctuate.
post #49 of 72
You sure that isn't "distance to TJMax"? I don't think Realtemp shows the TJ Max.
post #50 of 72
Thread Starter 
Quote:
Originally Posted by Forceman View Post

You sure that isn't "distance to TJMax"? I don't think Realtemp shows the TJ Max.
I think the distance to TJ max is, as far as I know, is only in RealTemp. And I just figured out that the distance to TJ max is the degrees to which the cpu will start throttling. A few of my cores at the moment are running at 94-96C in IBT Maximum at the moment.

When IBT finishes a pass, the CPU usage drops to say, around 50% and climbs to 80% for a second before going onto the next pass which loads it at 100%. Is this normal?
Edited by Ophaq - 2/16/13 at 10:53am
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