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post #251 of 753
Quote:
Originally Posted by iandh View Post
My stock setting was 1.2875v in bios and 1.2v in cpu-z, and that took me up to 3.0ghz. I had to bump up to 1.35v in bios to get stable at 3.3ghz, which read 1.25v in cpu-z.

You can cook eggs on my NB cooler right now so I am kind of scared to go higher, but I may just stick a fan there to get some benches done.
You should volt mod that board. After some better NB cooling of course.
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post #252 of 753
That's good man, keep up the great work on the blocks!

I would also suggest using TAT and 100% workload to start getting baseline for temperatures, and it really helps if you start measuring coolant, ambient, and core temps from a logging program like TAT or coretemp.

I never had any confidence in my own thermal testing until I started measuring all three temps and using a logging program to capture several hundred readings to average. It's really not to hard either. Just use TAT and the log temps button, after 10 minutes go open that file in excel and insert an average function for each core.

For water temps I just have a cheap $10 aquarium digital thermometer with a probe stuck down my T line into the line, and for consistency I use the same second aquarium thermometer with a probe on the inlet side of my radiator. So it only takes about $20 for a decent thermal test setup. What I do on a typical test is run 5 test at idle and 5 tests at TAT 100% all cores.

Each test I run for 5 minutes after stabilized. Then I start TAT's logging, and at the same time, I start manually logging water and ambient air temperatures every 30 seconds. In the end that gives me 10 ambients, 10 water temperatures, and maybe 100 TAT core temperatures that are all then averaged. I then do that same test 5 times each for idle and for load and will typically see that my water to core delta results are usually within about .5C. So I feel pretty good that after 5 tests of doing this I end up with something that's good for maybe .2 or .3C accuracy.

After you start doing that, you'll really see just how much delta you really have. FYI, it's near impossible to get a core temp even at idle that is the same as you're ambient. Even with my now outdate E6600 on an MCR320, I consistently will get water temperatures that are almost spot on 2C above the ambient at idle (4C at load).

Anyhow, it's alot of work, but only after I started doing this did I feel like I could repeat any testing results.

BTW, you better start ordering some stock, I see alot of people making block orders your way...
    
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post #253 of 753
So here is 3.4ghz @ 1.4v in bios (1.3 in cpu-z after vdroop) Ignore the cpu usage, that is just Vista dicking around in the background but if you bring up the task manager it shows zero cpu usage. I let the temps stabilize for 10+ minutes before the screenie.

I have a 3C cooler ambient temp this morning, the load/idle delta is 11.25C

This block means business.





Quote:
Originally Posted by Martinm210 View Post
That's good man, keep up the great work on the blocks!

I would also suggest using TAT and 100% workload to start getting baseline for temperatures, and it really helps if you start measuring coolant, ambient, and core temps from a logging program like TAT or coretemp.

I never had any confidence in my own thermal testing until I started measuring all three temps and using a logging program to capture several hundred readings to average. It's really not to hard either. Just use TAT and the log temps button, after 10 minutes go open that file in excel and insert an average function for each core.

For water temps I just have a cheap $10 aquarium digital thermometer with a probe stuck down my T line into the line, and for consistency I use the same second aquarium thermometer with a probe on the inlet side of my radiator. So it only takes about $20 for a decent thermal test setup. What I do on a typical test is run 5 test at idle and 5 tests at TAT 100% all cores.

Each test I run for 5 minutes after stabilized. Then I start TAT's logging, and at the same time, I start manually logging water and ambient air temperatures every 30 seconds. In the end that gives me 10 ambients, 10 water temperatures, and maybe 100 TAT core temperatures that are all then averaged. I then do that same test 5 times each for idle and for load and will typically see that my water to core delta results are usually within about .5C. So I feel pretty good that after 5 tests of doing this I end up with something that's good for maybe .2 or .3C accuracy.

After you start doing that, you'll really see just how much delta you really have. FYI, it's near impossible to get a core temp even at idle that is the same as you're ambient. Even with my now outdate E6600 on an MCR320, I consistently will get water temperatures that are almost spot on 2C above the ambient.

Anyhow, it's alot of work, but only after I started doing this did I feel like I could repeat any testing results.

BTW, you better start ordering some stock, I see alot of people making block orders your way...
Yeah, there is no doubt I need to take a bit more scientific approach before I start to make any solid claims about how good or bad this block is, but so far things are looking very good.

I am trying my best to be unbiased and wait for thermal equilibrium before taking screenies but my methods are far from precise. I would be inclined to say that my 11.25C delta was due to cooler water temps, but the water in the loop is getting heated to the point where the fan is blowing warm air and the side of the rad is warm also, so I don't feel that water temps are all that different than yesterday. Plus I have a small loop so I don't feel there is all that much heat capacity.

I have access to lots of test equipment at work so I will try to get you guys some good solid numbers on this.
post #254 of 753
Hey if that has a 50x50mmm base, which I'm sure it does it looks like it might make a good TEC block...A little 320W would fit just right on it for you...
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post #255 of 753
Can I buy one of these?
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post #256 of 753
Quote:
Originally Posted by iandh View Post
Yeah, there is no doubt I need to take a bit more scientific approach before I start to make any solid claims about how good or bad this block is, but so far things are looking very good.

I am trying my best to be unbiased and wait for thermal equilibrium before taking screenies but my methods are far from precise. I would be inclined to say that my 11.25C delta was due to cooler water temps, but the water in the loop is getting heated to the point where the fan is blowing warm air and the side of the rad is warm also, so I don't feel that water temps are all that different than yesterday. Plus I have a small loop so I don't feel there is all that much heat capacity.

I have access to lots of test equipment at work so I will try to get you guys some good solid numbers on this.
Just looking at the block pins and flow path tells me enough that it'll perform really well...no doubt about that..

I was just thinking more along the lines of any future tweaks and having that baseline to compare to. You might also consider throwing that commercial block test along side for that relative comparison on your particular setup..
    
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post #257 of 753
Quote:
Originally Posted by ira-k View Post
Hey if that has a 50x50mmm base, which I'm sure it does it looks like it might make a good TEC block...A little 320W would fit just right on it for you...
No kidding, with a flat base, that's a perfect TEC block too
    
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post #258 of 753
Martin, on an offshoot, what is more demanding as a stability test? Does the load generator in TAT care if there are errors as it stresses the cpu? Or is a Prime stable CPU generally stable for this?

I am still getting used to having an Intel system, I haven't really done any serious tweaking yet. I loved the mileage I got out of my AMD rig but it was darn finicky, and that is across a couple mobos/cpus. I just am kind of wierded out being able to crank a chip up from 2.4 to 3.4 at what seems to be rock solid stable with literally zero effort. I don't know if I just got an awesome chip or lucky mobo/ram combo, but whatever it is I am happy. I don't really know that I am interested in taking it much past 3.5 though, due to diminishing returns and increasing risks. If I was in a financial position to replace it then I would definitely put the pedal to the floor though.

I'm definitely going to do something about the northbridge on this thing though, it is screamin hot, especially at near 400fsb. Probably throw the whisper XE from my Tforce 550 on it. Should work nice.
post #259 of 753
Thread Starter 
Quote:
Originally Posted by iandh View Post
Martin, on an offshoot, what is more demanding as a stability test? Does the load generator in TAT care if there are errors as it stresses the cpu? Or is a Prime stable CPU generally stable for this?

I am still getting used to having an Intel system, I haven't really done any serious tweaking yet. I loved the mileage I got out of my AMD rig but it was darn finicky, and that is across a couple mobos/cpus. I just am kind of wierded out being able to crank a chip up from 2.4 to 3.4 at what seems to be rock solid stable with literally zero effort. I don't know if I just got an awesome chip or lucky mobo/ram combo, but whatever it is I am happy. I don't really know that I am interested in taking it much past 3.5 though, due to diminishing returns and increasing risks. If I was in a financial position to replace it then I would definitely put the pedal to the floor though.

I'm definitely going to do something about the northbridge on this thing though, it is screamin hot, especially at near 400fsb. Probably throw the whisper XE from my Tforce 550 on it. Should work nice.
Welcome to Kentsfield Ian...

Almost any Q6600 will run a 1 GHZ OC on P35. It's probably why everyone and their lil sister has one now. and Penryn is showing capablity of a 2 ghz OC (almost) on AIR.

But you might have a really good CPU to. The latest 3 G0 Quads I have gotten from Club It are awesome 4 ghz chips.

The NB get's Really hot on P3...as do the Voltage Regulators around the CPU socket...
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post #260 of 753
Quote:
Originally Posted by CyberDruid View Post
Welcome to Kentsfield Ian...

Almost any Q6600 will run a 1 GHZ OC on P35. It's probably why everyone and their lil sister has one now. and Penryn is showing capablity of a 2 ghz OC (almost) on AIR.

But you might have a really good CPU to. The latest 3 G0 Quads I have gotten from Club It are awesome 4 ghz chips.

The NB get's Really hot on P3...as do the Voltage Regulators around the CPU socket...
Lucky... Mines a bit of a slacker. It needs 1.5v to hit anything above 3.2ghz.
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