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e6600 OC Results and Questions

post #1 of 19
Thread Starter 
Good morning all:

I am pretty new to OC in general and have been reading as many forums as possible. I just put all my new parts in the machine and I am back up and running. I have jumped into the OC portion of my latest rebuild and have a couple of questions. First here are my specs:

e6600 C2D
Asus P5K
eVGA 8800 GTS (640)
2x1GB - GeiL Ultra DDR2-6400 SDRAM
OCZ Extreme 700w
Artic Cooling Freezer 7
2 LCDs - 22" + 19"

Current OC Results:

e6600 - 2.4 --> 3.194ghz
FSB 355
Ram Divider - Set to 720
vCore 1.425
Temps - Idle 36*c / Load 50*c (TJunction = 85*c)

Benchmarrk Results:

SuperPi - 15.98s
OCCT = Pass (30m)
3DMark06 = 9625 (cpu around 2600 if I recall)

QUESTIONS that I have:

1) I run CPU-z 1.4 and it does not give me the correct information. The multiplier is noted as x6 when I know it is at x9. I use CoreTemp and it tells me the correct information (355 x9 = 3195mhz). What gives? Can CPU-z show me the correct information?

2) What is the MAX. vCore I should try to limit my CPU to? I read that this is largely dependant on the temps. My temps appear to be fine in that they don't go over 50*c. On my AMD x2 I was trying to stay below 60*c is this the same case for e6600 too or do they run a little cooler / hotter? Any rate, I don't mind upping my vCore I just don't want to over do it.

3) Realistically what should I strive to get from this OC? I have heard that 3.2ghz is about what I am going to get with air cooled system and these newer chips in this series. Is this the case? I read a lot of folks are getting in the 3.5 range air-cooled. I am curious to know where the point of diminishing returns is. Maybe I am there with 3.2?

4) I can pass super PI and 3dMark06 but will crash on OCCT if I up the FSB beyond 355 mark - what is this a sign of..undervolt vCore? Perhaps it's my RAM settings - timing and voltage.

5) Ram settings to achieve better OC from the CPU. Currently the BIOS is set to AUTO on all the ram timings and voltage. I see that the model of ram I am running has a timing of 4-4-4-12 and voltage in a range from 1.8-2.3v. By setting "auto" to all the ram am I limiting the OC possiblies due to RAM settings.

That's all I have for now. Any help in point this amateur in the right direction is appreciated. I am happy with 35% speed boost but am now getting greedy. That's the point I guess.

Thanks again!

Bman
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post #2 of 19
1. Disable all power saving options.

This is an old picture of this screen I now have all disabled. If you have certain ones enabled it will drop your multi at idle.



2. You shouldn't go past 1.55vcore with air imo. Your temps are going to dictate your highest vcore and I dunno if you are going to get to 1.55 and not overheat.

3. I've seen people with excellent E6600 chips (Cogn) and she is up to 3.86 with air i think. 3.2 should be easily achieved with your cooler, though I think you might wanna check your thermal paste because your temps seem a little high at your clock and vcore.

4. Prolly under volted vcore.

5. You should be able to run stock timings and 2.1v all the way to 400MHz FSB.

BTW please fill in your system specs so we can see what you have. Click on User CP and edit your system and welcome to the site.
post #3 of 19
Thread Starter 
Thanks SS -

Specs have been updated.

Can I leave the BIOS on "auto" for the ram timings and voltage or should I change those manually?

Also, I noticed that the bios has AI Booster (I think this ASUS). Should I turn this off?
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post #4 of 19
Yes, leave RAM Timings on auto for now. Once you find a stable OC tighten them down.
Mira
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Mira
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post #5 of 19
First off, nice build!

#1- Cpuz isn't accurate on Vcore, always check your bios. PC Probe is nice to use as you can watch Vdroop as you run orthos and it's pretty accurate on my system.

#2- Max Vcore is 1.5v per Intel specs, but that's up to you. Between 50-55c under load is my goal, no more than 50c for 24/7 use.

#3- 3.2Ghz is perfect if you plan on keeping your rig a long time IMO. The temps and Vcore are at nice levels. Speed difference is very noticable from stock and it's free speed!

#4- I use orthos to check stability but it's all about learning your system and playing with settings to find the best results. Up your Vcore one notch and see what happens.

#5- Again if you want long term use, set your ram manually to the rated specs and keep your speed ~ 800Mhz.

Good luck
post #6 of 19
Thread Starter 
Thanks for the replies. Yeah, I finally got most of my components in the rage I want. Uhh that stinking MS FSX has cost me a lot more then just the software.

1- I will get orthos. I have heard it mentioned a lot. What about the divider issue on CPU-Z.

2- My machine site Idle 75% of the time. The other 25% is game:30 and benchmarking + OC'n for fun.

3- Yes - that's kind of what I was thinking. Sure, I could probably get more from the system but so the sake of just doing it will get me in the end.

4- I will up the vCore and stay below 1.5v

5- I will give it a shot. I should move my speed back up to 800 then. I had turned it down to 760mhz I think as this was the only option I could find for the ram divider. I don't see anything that notes 1:1 etc. As a side note, the ram speed does give me the option to 1333/1066/800/760 etc. Is there any point in going to 1066 or 1333 if my ram is only speced at 800?

Here is a couple pictures just for fun...



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post #7 of 19
If you aren't trying to max everything out it will probably be easiest to just run your ram at it's stock advertised speed, timings, and voltage.

1- I will get orthos. I have heard it mentioned a lot. What about the divider issue on CPU-Z.

I mentioned this up in number one on my first post. If you have any energy saving featured enabled your multiplier is most likely being dropped at idle. Does cpu-z report it correctly once you put a load on your pc with occt or orthos?
post #8 of 19
Thread Starter 
That's a good point. I didn't check the CPU-z under load.
As soon as I saw the vCore was inaccurate AND it wasn't showing the correct FSB multi I just gave up on it.

I bet you are right on the droop. I will have to give this a try tonight when I get home.

Does this also have any impact on the multi? CPU-z shows 355 x 6 = 2130...where as it is actually 355x 9 = 3195 in BIOS and CoreTemp / SpeedFan

Unfortunaltely I just don't know enough about it all. I am learning with your help though.

Thanks
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post #9 of 19
Jumping in in the mddle of a topic...

Quote:
Originally Posted by bman2006 View Post
1- I will get orthos. I have heard it mentioned a lot. What about the divider issue on CPU-Z.
Do as Silvia suggested and make sure that there are no power saving options selected in BIOS; put a load on the CPU (Orthos) and see if the multiplier rises in CPUz (CPU will update live).

Quote:
Originally Posted by bman2006 View Post
3- Yes - that's kind of what I was thinking. Sure, I could probably get more from the system but so the sake of just doing it will get me in the end.
It will get you a sense of accomplishement, and a faster computer! You games will load maps ect. faster too.

Quote:
Originally Posted by bman2006 View Post
4- I will up the vCore and stay below 1.5v
Just be sure to watch the temps, they are more important than the volts. Also, I would suggest coretemp94 for mesuring the temps, it's more accurate than PC Probe on my Asus board, might be different on the P35 chipset though?

Quote:
Originally Posted by bman2006 View Post
5- I will give it a shot. I should move my speed back up to 800 then. I had turned it down to 760mhz I think as this was the only option I could find for the ram divider. I don't see anything that notes 1:1 etc. As a side note, the ram speed does give me the option to 1333/1066/800/760 etc. Is there any point in going to 1066 or 1333 if my ram is only speced at 800?
800 should be your stock so you can up it to that. Also upping the ram bus speed will make the computer faster but, try and go for tight timings at 1T as it will probably net you more perfomance than going with loose timings at 2T and a higher memory bus speed.
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post #10 of 19
Looks good to me

I've been playing with ram settings alot to find that they make the biggest difference in 1:1 settings with higher FSB.

Example: at stock my ram came up @ 2.4Ghz (266x9) running 667 on a 4:5 ratio. Ram hits it's rated speed of 800Mhz at 2.9Ghz on 4:5. I downshift to 1:1 at this point (Easier on system than at OC speeds). Then you're good to at least (3.6Ghz 400x9) when it reaches 800Mhz again, as long as you can keep the temps in range.

Now if you are only shooting for 3.2Ghz, it would make your system faster to change the muti to 8 (400x8=3200) which will put your ram at 800Mhz (1:1) but raise your FSB from 1424 to 1600. Everthing is in sync and temps are good with proper cooling like you have. That's my best choice for a good all around OC that should last a long time and gives a much faster system over stock speeds.

On a seperate note, if you feel that 75% of your computers time is wasted, you may look into folding. It's fun, you can join a team, and it helps a good cause IMO.
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