E6750 & Gigabyte P35C-DS3R Overclocking Thread

[jcossin]

Well I decided to tolerate a little more heat and increased my voltage to 1.475 and my clock speed to 3.6GHz and I just completed an 8 hour Orthos run.

My temps in TAT are 55C/58C which if I add 15C to get the real temps aer 70C/73C. A little on the high side but I feel better now knowing that 100C is the max these can take.

I'll probably stay at this speed for awhile and then maybe try for higher. I better water cooling would help but I don't know that I want to fuss with it.

 

[SniperDaws]

i thought TAT was accurate and you didnt need to add 15c to those temps reported by it.

use Coretemp 0.95.4 making sure the Tjunction is at 100c if it is then you dont need to add anything.

 

[mrfatboy]

Originally posted by: SniperDaws
ok im now running my Q6600 @ 3.2 (8x400) CPU-Z 1.296v at load 1.344v idle (1.4 in Bios) 1:1 4-4-4-12 prime stable for 10 hours till i turned it off this morning.

Temps 63-57-55-63

im leaving it at that for a week or 2.

nice going. I knew you would like that Tuniq


Also, TAT is NOT accurate. You need to add the 15C

 

[AySz88]

jcossin: Where did you hear that 100C is okay? I'm pretty sure 100C is past the threshold for self-shutdown, and way past when the CPU starts slowing itself down to cool off...

(And if you'd rather use TAT than Coretemp, you can check by using them simultaneously - if the Tjunction in Coretemp is 100 and the programs agree on the temps, you can be sure both are using the correct Tjunction...)

 

[SniperDaws]

Originally posted by: mrfatboy

Originally posted by: SniperDaws
ok im now running my Q6600 @ 3.2 (8x400) CPU-Z 1.296v at load 1.344v idle (1.4 in Bios) 1:1 4-4-4-12 prime stable for 10 hours till i turned it off this morning.

Temps 63-57-55-63

im leaving it at that for a week or 2.

nice going. I knew you would like that Tuniq


Also, TAT is NOT accurate. You need to add the 15C

Oh im well impressed, i didnt expect it to be this good, i wasnt getting such low temps at stock with the stock cooler.

4 cores running at 3.2Ghz is rapid, and will do nicely with my 8900-9800GTS when they eventually come out.

So Thankyou MrFatBoy for being persistent because i thought £40 was too expensive for a cpu cooler, but its money well spent.

Oh and was the backplate on your cooler out of shape ? i had to bend it to fit flush on the back of the mobo.

 

[mrfatboy]

My backplate fit fine. I didn't notice any bending. I didn't even use the sticky tape. I read somewhere it is a really p.i.t.a to take off. It's super strong tape.


On another note. Does anybody have EIST enabled after they overclocked? What are the pros and cons if any? I just enabled it and it's running my system at 6 x 450 (2.6). When I run orthos it jumps to 8 x 450 (3.6). This seems fine to me since I really don't need all that power all the time. The cpu voltage remains the same tho.

I also enabled CIA2 and it crashed at windows load screen. I disabled that again.

 

[jcossin]

Originally posted by: mrfatboy
On another note. Does anybody have EIST enabled after they overclocked? What are the pros and cons if any? I just enabled it and it's running my system at 6 x 450 (2.6). When I run orthos it jumps to 8 x 450 (3.6). This seems fine to me since I really don't need all that power all the time. The cpu voltage remains the same tho.

I also enabled CIA2 and it crashed at windows load screen. I disabled that again.

I have EIST enabled.

It helps to keep things cool when I don't need the performance.

CIA2 is worthless, just leave it disabled.

 

[jcossin]

Originally posted by: AySz88
jcossin: Where did you hear that 100C is okay? I'm pretty sure 100C is past the threshold for self-shutdown, and way past when the CPU starts slowing itself down to cool off...

(And if you'd rather use TAT than Coretemp, you can check by using them simultaneously - if the Tjunction in Coretemp is 100 and the programs agree on the temps, you can be sure both are using the correct Tjunction...)

From reading threads in here. They are saying 100C is the max. If you have other info, please share, I'm not sure what is right.

I just got the link for Coretemp today and I'm going to try it at home tonight.

Here's the link if anyone else is interested:

http://www.thecoolest.zerobrains.com/CoreTemp/

 

[mrfatboy]

I was keeping a log of my CPU & Vid Card overclock. I know it's only synthetic 3dmark 06 test but I found it interesting.

How's everybody else's score's?



3dmark 06 (3.2) (non OC) 9309
3dmark 06 (3.2 & 600/1000) 10655
3dmark 06 (3.6 & 620/1004) 11270
3dmark 06 (3.6. & 690/1090) 12094


That's a 2785 point spread That's a 30% increase at a 35% overclock :thumbsup:

 

[Wurmer]

I think, I just pull my first successful OC. After 22 hours of Ortho stable at 3.6 I consider it good to go. I also enable EIST and I'll see where it gets me. There are a few things I am considering here. Firstly, my temps were 66 C at load, even though it's pretty much normal for my cooler I find that to be a bit hot for my taste since ambient is around 20-22 C. In full summer ambient can easily reach 30 C so I am afraid it'll push the temps over 70 C.

I might want to change my cooler for something more efficient, Tuniq and TR120 extreme are certainly top contenders but I find them to be freaking huge. That was one of the criteria that made chose the AC Pro. I might go for one of those but the smaller TR 90 Ultimate seems interesting as well. When paired with a 120mm Fan, according to Anantech own evaluation, its performance make it one of the top contender. The only thing I am afraid here, is that I have seen criticisms concerning quality control and that some people ended up with concave surface. We surely don't want that. Anyone has any experience what that HS ?

Secondly, I am wondering would there be any advantages if I was to switch to lower case memory. Mine are C5 but at the time I bought those, they were on discount and got them for a fairly cheap price.

 

[jcossin]

Originally posted by: mrfatboy
I was keeping a log of my CPU & Vid Card overclock. I know it's only synthetic 3dmark 06 test but I found it interesting.

How's everybody else's score's?

3dmark 06 (3.2) (non OC) 9309
3dmark 06 (3.2 & 600/1000) 10655
3dmark 06 (3.6 & 620/1004) 11270
3dmark 06 (3.6. & 690/1090) 12094

That's a 2785 point spread That's a 30% increase at a 35% overclock :thumbsup:

Most of that increase is coming from your graphics card overclock.

You are about inline with what I'm seeing. I'm getting about 12150 with an 8800GTX at 630/1000.

 

[jcossin]

Originally posted by: Wurmer
Secondly, I am wondering would there be any advantages if I was to switch to lower case memory. Mine are C5 but that at the time I bought those, there were on discount and got them for a fairly cheap price.

I would definitely get some CAS4 memory, see my results from my earlier post.

When you say that you are at 66C, what are you using to measure?

 

[5t3v0]

I was going to start a new forum about EIST. I have it enabled & it lowers the multiplier to x6 but does nothing to vcore. I'm sure I had this running at one point but not now. Perhaps I was mistaken or the system had done one of it's default setting resets & I hadn't noticed.

On my previous X2 system I had an Epox board which with AMD C&Q dropped the vcore at idle & raised it back up to my overvolted setting at load. I had that chip on 1.55v so it was a great feature to save the cpu from unnecessary power load. Lots of boards just raise vcore back to the cpu default resulting in an instant lockup.

I've looked at rmclock & crystalcpuid and neither change the vcore. Nether support overvolting anyhow.

Does anyone have EIST changing their voltage with an overvolted overclock on this board? If so, let me in on the secret please.

 

[SerpentRoyal]

1. Enable C1E and EIST in BIOS and select DEFAULT CPU multiplier.
2. Set Power Options in windows to Minimal Power.
3. Some boards will not lower voltage once you crank Vcore above certain level. I see this problem with Asus P5B Deluxe. Works fine with my Abit IP35-E, regardless of Vcore setting.

Note that C1E is responsible for dropping Vcore, but you must enable C1E and EIST at the same time to get the voltage drop. Also install the latest Intel chipset driver.

 

[5t3v0]

Originally posted by: SerpentRoyal
1. Enable C1E and EIST in BIOS and select DEFAULT CPU multiplier.

C1E & EIST both enabled. However, there is no "default" option for the multiplier on this board.

2. Set Power Options in windows to Minimal Power.

I have Vista but have set minimum processor state to 5% as per default for power plan.

3. Some boards will not lower voltage once you crank Vcore above certain level. I see this problem with Asus P5B Deluxe. Works fine with my Abit IP35-E, regardless of Vcore setting.

Now this might explain it. I'll try lowering vcore & see if there's a threshold. This would be a bummer as 3.6GHz isnt stable any lower than my current vcore.

Edit: Nah, it doesnt work on this board. I reset to optimized defaults & started making manual settings & booting into Windows each time. As soon as I changed the CPU voltage from auto (even if same as default value), the voltage doesn't lower in Windows. I'll just have to live with the fact that I have a very fast web browsing machine.

 

[Wurmer]

When you say that you are at 66C, what are you using to measure?

I am using SpeeFan to measure my temps. I have followed suggestions from a guide at TH, a read I suggest to anyone BTW.

http://www.tomshardware.com/fo...core-temperature-guide

Sorry if it's not allowed to link to another site but it sure worth the read.


I have tried running core temp, but Vista 64 doesn't seem to like it one bit. I have tried running as an admin. and setting up compatibility but to no avail. When I try to run it, I get a pop up that says it's missing a driver and it starts opening up windows none stop.

 

[mrfatboy]

Originally posted by: jcossin

Originally posted by: mrfatboy
I was keeping a log of my CPU & Vid Card overclock. I know it's only synthetic 3dmark 06 test but I found it interesting.

How's everybody else's score's?

3dmark 06 (3.2) (non OC) 9309
3dmark 06 (3.2 & 600/1000) 10655
3dmark 06 (3.6 & 620/1004) 11270
3dmark 06 (3.6. & 690/1090) 12094

That's a 2785 point spread That's a 30% increase at a 35% overclock :thumbsup:

Most of that increase is coming from your graphics card overclock.

You are about inline with what I'm seeing. I'm getting about 12150 with an 8800GTX at 630/1000.

Have you tried a max overclock on your 8800gtx? I would be interested on what it could do. Use the new ATI Tool to find max cpu & mem.

 

[Wurmer]

Originally posted by: 5t3v0
Does anyone have EIST changing their voltage with an overvolted overclock on this board? If so, let me in on the secret please.

Mine is acting in the very same way. I too, thought that the Vcore would drop by enabling EIST. It's not happening.

 

[SniperDaws]

Hmmmm i just checked mine and its not dropping, but it defo did when i had it at stock clocks, never mind cos mine drops from 1.344v (IDLE) to 1.296 (LOAD)

 

[mrfatboy]

I have a couple of questions?

1) what is everybody using to monitor memory voltage?

2) Has anybody experimented with the "option 1" or "option 2" bios memory options? What do they do? What is the difference? I read on another forum that somebody used "option 2" and got his OC to 3.8ghz. Using "option 2" was the only way he could do it.

 

[Wurmer]

I don't know what option 1 et 2 do. It seems there still plenty of options to explore in this BIOS.

As for memory voltage, I use the information given in Speedfan = Vcore2. It seems a tad high and I don't think you can adjust it with an offset . It reads 2.22 but should rather read 2.1, unless I am missing something.

 

[roorooroo]

I'm not sure if this is the correct thread but anyway..
I'm about to emark on OC'ing on the GA-P35C but with an E6600 instead..
Now I only have kingston 667 rated memory..
I am aiming to get 3ghz..that's 9x333..
Would this be okay considering my memory? (333x2=666)..

Hopefully it would?

Cheers.

 

[mrfatboy]

@wurmer,

My speedfan say 2.24v and I have only overclocked it to 2.1v. I'm not sure if speedfan is inaccurate or something else is going on. I read on another forum that cpu vcore affects the memory vcore on this board. I'm not sure if that is true. I'm going to test it.


@roorooroo.
You should be fine! good luck.

 

[SerpentRoyal]

Originally posted by: roorooroo
I'm not sure if this is the correct thread but anyway..
I'm about to emark on OC'ing on the GA-P35C but with an E6600 instead..
Now I only have kingston 667 rated memory..
I am aiming to get 3ghz..that's 9x333..
Would this be okay considering my memory? (333x2=666)..

Hopefully it would?

Cheers.

Memory is rated at 333 so it should be okay. Run Memtest86 to test RAM. Kingston's "N5" DDR2 667 can easily hit 400MHz with 2.1Vdimm at 5-5-5-18-2T timing. You may even be able to drop timing to 4-4-4-12-2T. Again, use Memtest to check for RAM stability.

 

[Serj]

Hi guys, just a quick question. How does everyone identify orthos errors? I keep getting errors after 3 seconds and it just stops. and when i select the CPU only stress test, it just restarts. any ideas or suggestions?

and also whats the normal p35c voltage to the cpu on the e6850? and whats the recommended by intel? im guessing its the core voltage because memtest ran for 3hrs and did 10 passes of test #5 with no errors